REVIEW CH 5 ASSIGNMENT REVISED (SP 2024)
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REVIEW: CH 5 ASSIGNMENT REVISED
All work must be submitted in Excel
This document contains 3 problems to help you prepare for the midterm. The Answers will be posted on Canvas after the due date.
Grading: 50% template development; 50% correctly using the template
Problem #1 LIFO TO FIFO:
Most inventories owned by Company & Deere and its United States equipment subsidiaries are valued at cost, on the “last-in, first-out” (LIFO) basis. Remaining inventories are generally valued at the lower of cost, on the “first-in, first-out” (FIFO) basis, or market. The value of gross inventories on the LIFO basis represented 66 percent and 64 percent of worldwide gross inventories at FIFO value on December 31, 2019 and 2020, respectively. If all inventories had been valued on a FIFO basis, estimated inventories by major classification at December 31 in millions of dollars would
have been as follows:
Inventory Information
Account
2019
2020
Raw materials
$712
$882
Work-in-process
385
425
Finished machines and parts
2,013
2,263
Total FIFO value
3,110
3,570
Less adjustment to LIFO value
-1,040
-1,400
Inventories
$2,070
$2,170
What adjustments to the balance sheet and income statement are necessary to convert from LIFO to FIFO for 2020: Assume 21% marginal tax rate.
Problem #2 Allowance for Doubtful Accounts
Egghead.com had the following key information related to its income statement and balance sheet on its 2015 and 2016 financial statements:
Accounts Receivable Information
Account
2016
2015
Accounts Receivable, net
24,079
20,494
Inventories, net
82,712
89,543
Sales
403,841
434,021
Cost of sales
357,373
380,428
From its Accounts Receivable Footnote
Company sales made on credit generally have terms of net 30 days. The sales and corresponding trade receivables for inventoried product are recorded upon merchandise
shipment. The Company records provisions for doubtful accounts and sales returns and allowances based upon historical experience.
Certain advertising and promotional expenditures are reimbursable from suppliers under
cooperative advertising and other promotional and market development fund arrangements. Amounts qualifying for reimbursement are recorded as receivables from
the suppliers and as a corresponding reduction of net advertising expense in the period the expenditure occurs. Also included in accounts receivable are credit card receivables and amounts due from vendors for returned inventory and other programs. The Company records a provision for uncollectible vendor receivables based upon historical experience. The allowances for doubtful accounts are $2,090 and $2,169 for 2016 and 2015, respectively.
Assuming the Marginal Income Tax rate is 21%, what adjustment would be made to the balance sheet and income statement for the allowance for doubtful accounts assuming the prior year was more accurate?
Problem #3 Research & Development
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List the following compounds from highest boiling to lowest boiling:
Rank the compounds from highest boiling to lowest boiling. To rank items as equivalent, overlap them.
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OH
N-
ОН
`N'
H
NH2
highest boiling
lowest boiling
The correct ranking cannot be determined.
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Table 2- AA contents of lemon juice stored at 10°C
Time (mo)
AA content (mg/100 mL)
1
69
1.25
58
49
10
30
Clue: First, write this equation in the form of "y = ax + b" form. And, then determine the x
and y values. Give units wherever the units are applicable!!!!!
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1-23. The concentration of sugar (glucose, C6H₁2O6) in human blood
ranges from about 80 mg/100 mL before meals to 120 mg/100 mL
after eating. Find the molarity of glucose in blood before and after
eating.
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fROM THE PICTURE (A) Write down 10 hazards that you can observe in the said picture. (B) Identify the type or category of hazard (physical, chemical, microbiological, allergenic) that you observed and write its category beside the name of the corresponding hazard. To facilitate the checking of your answers, number them accordingly (1 to 10). Example: 1. nail - physical *
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Upon carrying out a mechanism for the following reaction, state which of the following products would be the major
product?
Question 9.docx 13 KB
A. 3,3-Dimethylbutan-2-ol
B. 2,2-Dimethylbutan-4-ol
OC. 3.3-Dimethylbutan-4-ol
O D. 4.4-Dimethylbutan-1-ol
O E. 1'-3,3-Dimethylbutyl alcohol
Reset Selection
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MISSED THIS? Watch
IWE: Half-Reaction Method of Balancing Aqueous
Redox Equations in Acidic Solution
; Read Section 20.2. You can click on the Review link
to access the section in your e Text.
Balance each of the following redox reactions
occurring in acidic aqueous solution.
K(s) + Cr³+ (aq) → Cr(s) + K+ (aq)
Express your answer as a chemical equation including phases.
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Submit
ΑΣΦ
A chemical reaction does not occur for this question.
Part B
?
Al(s) + Fe²+ (aq) →
A1³+ (aq) + Fe(s)
Express your answer as a chemical equation including phases.
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GL ー
2. All-purpose Flour
3. Margarine
4. Milk
5. White sugar
Additional Activities
Activity 1
Directions: Measure the ingredients of a recipe using the ordinary and standard
measuring tools. Place them in a separate bowl. After measuring, mix, and set aside.
3 cups All Purpose Flour
1 1/2 c brown sugar
2 tsp baking powder
2.
1/3 cup oatmeal
cup oil
1/2c milk
1
tsp baking soda
2 cups banana
Question: What are your observations of the volume of the ingredients in using the
nonstandard and standard measuring tools? Write your answer your answer sheet.
Activity 2
Directions: Visit at least two Carenderias in your area. Interview the owner on how
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DIRECTIONS: Fill in the
blanks (1, 2,3, & ??) to
complete the organizer.
A word bank is provided
for your reference.
??
is the transfer of____?? energy from one substance to
another. Temperature measures the ?? of the moving
molecules. ?? means all molecules have stopped moving.
3
3
3
1
2
373°
273
1
2
212
32°
459°
1
2
100°
0° 1
-273°
Absolute Zero
Avg. Kinetic Energy
Thermal
Word Bank
2
3
Heat
Celsius
Fahrenheit
Kelvin
Scientific theory
Used in most other
nations & science
classrooms
Used in U.S.A.
Absolute Zero
H₂O Boiling Point
H₂O Freezing Point
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Microsoft Teams Login Page | Mi X
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12
Tme following tabie compares irie mass of packaging, tolal cost and Tiumber of servirigs of irOzen
concentrate and drinking boxes. Use the table to answer questions 40-41
Servings of
Prepared
Julce
Volume of
Mass of
Packaging (9)
Total Cost
Рrepared
Juice (mL)
nts
of Juice ($)
I
frozen concentrate
33.66
1364
5.5
1.20
drinking boxes
78.72
1500
6
2.58
40. Calculate the mass of packaging per serving for both frozen concentrate and drinking boxes. Use the
following formula.
Mass of packaging
Mass of Package
per serving
Number of Servings
Calculations: 123.88
41. Calculate the cost per serving for both frozen concentrate and drinking boxes. Use the following
formula.
Total Cost
pps…
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26) The floor tiles in SE 27 are about 1 square foot and the lab is about 25 tiles wide and about
36 tiles from front to back. When the emergency shower was demonstrated, in 10. seconds
the water in the trash can was about 1 foot deep. One student estimated this was 2.5 gallons.
Estimate how deep the room will get in inches after a 15 minute shower. List 3 simplifving
assumptions you make in this calculation
rea
L-36 Tile
fiDw
ill it cost2 The density of gold is
27l An artist plans to apply gold leaf to a painting with an area of 2.32 f? and a thickness of 1.50
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Project PART I. Our Carbon Budget
A major driver of global climate change is the emissions of greenhouse gases such as CO₂ into the
atmosphere from human activities such as the burning of fossil fuels for transportation, electric
power generation, manufacturing, agriculture, home heating, and so forth. Global average temper-
atures are now slightly higher than 1° C above their pre-Industrial Revolution levels. Damaging
sea level rise and extreme weather events (such as the recent wildfires in Canada that led to the
unhealthy air in NYC last summer) will become an increasingly major problem around the world
if global average temperature rises more than 1.5° C. Scientists estimate that the total additional
amount of CO₂ that can be put into the atmosphere without reaching the 1.5° C level is about 51
parts per million (ppm) or approximately 400 Gigatons (Gt). Let's call 51 ppm our carbon budget.
In this project, we want to use linear systems of differential equations to analyze the…
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With the images attached please write 1 paragraph
1 paragraph: complete condense method describe
Please please please answer everything it's very important please answer super super fast
NOTE: This does not require hands-on experimentation
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terface/acellus_engine.htm?ClassID=1467683063
Use the data below to determine the
mass ratio of iron to oxygen for
compound 2.
Compound
1
2
Et
onal Academy of Science. All Rights Reserved.
Mass Fe
(grams)
15.55
20.98
[20:1
Enter the answer that belongs in the green box.
Iron Ratio Cmpd 2
Mass O
(grams)
4.45
9.02
Sh
Enter
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A chem....rking as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of
tetrahydrofuran, chloroform, ethanolamine, diethylamine, and pentane.
The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from his collection of Material Safety
Data Sheets (MSDS), the chemist finds the following information:
liquid
density
tetrahydrofuran
-1
0.89 gmL
-1
1.5 g•mL
chloroform
ethanolamine
1.0 g•mL¯
diethylamine
- 1
0.71 g•mL
pentane
- 1
0.63 g mL
Next, the chemist measures the volume of the unknown liquid as 1062. cm° and the mass of the unknown liquid as 1.08 kg.
Calculate the density of the liquid. Round your
answer to 3 significant digits.
1
g•mL
Given the data above, is it possible to identify
the liquid?
yes
no
tetrahydrofuran
chloroform
If it is possible to identify the liquid, do so.
ethanolamine
diethylamine
pentane
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Part B
Before investigating the scene, the technician must dilute the luminol solution to a concentration of 8.00x102 M. The diluted solution is then placed in a spray bottle for
application on the desired surfaces.
How many moles of luminol are present in 2.00 L of the diluted spray?
Express your answer with the appropriate units.
• View Available Hint(s)
Tempjetes Symbols undo redo Teset
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Value
Units
moles of luminol =
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Quiz # 2
Due 16 Mar at 14:30
Points 10
Questions 5
Available until 16 Mar at 14:30
Time limit 20 Minutes
Instructions
الكويز عبارة عن حل شيت والمعطيات لكافة الأفرع
25 ml of 1M HCI (ag) at 23.4°C was added to 25 ml of 1M NaOH at 23.4°C. The final temperature of the reaction
mixture was 29.7 C. Calculate A H, (KJ/mol). Density of each solution is 1.04 g/ml and Specific heat of water
=4.184 J/g.C
This quiz was locked 16 Mar at 14:30.
* Previous
1O
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Posttest
Direction. Read the questions carefully. Write the letter of the correct answer.
1. Water exists in three states of matter and continuously moving through a cycle
on Earth. At which stage in the water cycle does water transform from a gas to a
liquid?
a.evaporation
c. precipitation
b. condensation
d. Sublimation
2.
Carbon dioxide (CO2) forms when coal burns in the presence of oxygen. Which
of the following is the BEST evidence that a chemical reaction occurs when the coal
burns?
a. Production of mechanical energy c. A new substance is produced
b. Production of electricity
d. Formation of precipitate
3.Which of these does NOT happen during a chemical change?
a. New substances are formed with different chemical properties.
b. Attractive force between atoms of molecule formed or break.
c. The chemical properties of the substances before and after the reaction are
the same
d. Energy is always released or absorbed.
4. A granular substance is added to a liquid. Which of the…
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Case: 1Sodium chloride is obtained by reacting NaOH with HCl in a batch reactor.
NaOH + HCl → NaCl + H₂O
Suppose that 100 kg of NaOH and 76 kg of HCL are taken in the batch reactor and 107
kg of NaCl is obtained after some time.
Determine: The limiting reactant
The percentage of excess reactant
The degree of completion (fraction)
The percent conversion of NaOH to NaCl
The yield (kg of NaCl to kg of HCI)
[Bhatt, B. I. & Vora, S. M. (2004)]
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Ba(NO,l(aq) + K,SOlaq) Baso(s) + 2 KNOlaq)
Volume
Volume
Trial 0.10 M Ba(NO)2 (ml)
0.10 M K,SO, (ml)
Mass Baso4 (s)
Limiting Reagent
50.
20.
0.46
50.
40.
0.92
3
50.
50.
1.15
4
50.
60.
1.15
50.
80.
1.15
• Question 8
Use the data to identify the limiting reagent for each reaction performed.
V Trail 1
a. Neither/Both
EV Trial 2
b. Baso4
EV Trial 3
C. KSO4
EV Trial 4
d. Ba(NO3)2
EV Trial 5
e. KNO3
Question Help: Message instructor
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• Question 9
Why is the amount of precipitate in the Data Table above the same in Trials 3 through 5?
Edit Insert Formats B IVX x' A
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Lab Experiment #... x
...
+)
玩,
1
| 2
97.4%
Record
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observations following each reaction including changes in color and state of matter.
AGNO3 (Ag*)
Pb(NO3)2 (Pb²*)
Ca(NO3)2 (Ca²+)
а
e
i
NazCO3
Light orange solid
white, cloudy solid
white, cloudy, solid
(СО2)
b
NaOH
f
dark brown solid
stay clear, liquid
white, cloudy solid
(OH)
g
k
NazSO4
stay clear, liquid
white, cloudy, solid
white, cloudy, solid
(SO?)
d
NaCl
1
white, cloudy solid
white, cloudy solid
stay clear, liquid
(CF)
....
Remember to complete and submit this table to your instructor before the end of the class session.
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Analyze each statement (A and B) whether they are true or false. Use the choices below in answering each item;
A statement A is true
B statement B is true
C both A and B are true
D neither A nor B are true
(A) A dispersing agent such as Na-hexametaphosphate is needed prior to soil textural analysis. (B) particles greater than 2.0 mm is included in the analysis of soil texture.
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You work in a research organization that is looking for markers of various diseases that can be used as a diagnostic for the disease. It has been reported in the past that high levels of Cu are found in the sweat of people with cystic fibrosis. One of the research projects is focused on looking for high levels of Cu in samples that can be obtained non-invasively such as saliva, sweat, hair, nails, etc.
The lab will analyze large samples for Cu. What instrument would you recommend purchasing to support this work, Atomic absorption spectrophotometer or an inductively coupled plasma atomic spectrophotometer? Explain the basis for your decision.
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Using Le Chatelier's Principle to predict the result of changing...
Carbon disulfide and oxygen react to form carbon dioxide and sulfur dioxide, like this:
CS₂(g)+30₂(g) → CO₂(g) +2SO₂(g)
perturbation
Some O₂ is removed.
Some CO₂ is added.
Suppose a mixture of CS₂, O₂, CO₂ and SO₂ has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table
below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left.
Explanation
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1. Provide the reagent(s) that would be required for each of the following synthetic
transformations. Please note that some of the reactions involve multiple steps. In cases where
relative stereochemistry is shown (i.e. wedges and dashes, E-or Z-alkenes, etc.), your reagents
should be selected to yield the correct isomer as the major product. You do not need to supply
any arrow pushing mechanisms, but…
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Write A if only statement A is true;
Write B if only statement B is true;
Write C if both statements A and B are true;
Write D if both statements A and B are false.
______ (1) A. The scientific paper provides information about a chemical's toxicity, health hazards, physical properties, fire, and reactivity data—including storage, spill, and handling precautions.
B. Chemicals and other hazardous materials are an integral component of the laboratory environment.
______ (2) A. The skull and crossbones signage indicates corrosive substances.
B. Globally Harmonized System Pictograms illustrates different signages in relation to safety and proper handling of certain chemicals.
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What trend do you notice regarding the effect of temperature on the Haber process? Sup-
port your answer using data from the graph.
Answer using 2 to 3 complete sentences.
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Find the amount of each of the following components necessary to make 1000 kg of a 2-12-6 NPK fertilizer:
Calcium nitrate, pure; phosphoric acid; K2S04, 90% pure; inert fillers.
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I tried to ask the question previously as I’m trying to study for my exam with a sample lab off of YouTube and I’m unsure why it was rejected. . The videos are labelled – Single Replacement Demo Part one – Single
Replacement Demo Part Two and I included my data sheet. Please help! Thank you
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DENSITY EXPERIMENT
HOMEWORK
1. A few mls of an insoluble liquid is added to water. The density of the
insoluble liquid is 1.8 g/L. What will happen upon mixing? Which layer
will be on top?
2. Why does ice float on water?
3. What would you use to measure the mass of a solid?
4. What would you use to measure the volume of a liquid?
5. Density can be used to:
6. Is density a physical property or a chemical property?
7. A meniscus must be read at the top of the dip, the bottom of the
dip, or above the dip?
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1
Chemistry
Time's Up!
What is the number of moles of glucose (C₂H₂O) in 0.500
L
solution?
ADD FACTOR
1-210 Sections HA LECTU X
0.20
0.500
mL
ANSWER
0.020
36.04
1.3
M glucose g glucose mol glucose
MacBook Air
1
180.18
of a 0.40
6.022 x 1023
L
M
RESET
PUL
C
0.40
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Recommended textbooks for you
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- Course Home openvellum.ecollege.com/course.html?courseld=16921657&OpenVellumHMAC=3296af0fdfd0081ea26215c9d534a898#10001 YouTube N Netflix Khan ) Turnitin O Zoom N Canvas Pearson Sign In E Reading List ... CHEM-341 Fall 2021 Hi, Jarrett Sign Out Help Mastering Chemistry Course Home My Courses Syllabus Part A Scores eТext List the following compounds from highest boiling to lowest boiling: Rank the compounds from highest boiling to lowest boiling. To rank items as equivalent, overlap them. Document Sharing Reset Help User Settings Course Tools > OH N- ОН `N' H NH2 highest boiling lowest boiling The correct ranking cannot be determined.arrow_forwardTable 2- AA contents of lemon juice stored at 10°C Time (mo) AA content (mg/100 mL) 1 69 1.25 58 49 10 30 Clue: First, write this equation in the form of "y = ax + b" form. And, then determine the x and y values. Give units wherever the units are applicable!!!!!arrow_forwardB File Paste + E Home Insert Cut E Copy 4 Page 1 of 1 Format Painter Clipboard 0 words S Draw Design Layout References Calibri (Body) BIU Uabe X₂ abe X₂ X² 11 À A Aa A A Font Type here to search P English (Philippines) Accessibility: Investigate 10 Mailings Review View Help €¶ E•E•S• HE e W Paragraph Document1 - Word 1-23. The concentration of sugar (glucose, C6H₁2O6) in human blood ranges from about 80 mg/100 mL before meals to 120 mg/100 mL after eating. Find the molarity of glucose in blood before and after eating. I ■ S Tell me what you want to do AaBbCcDc AaBbCcDc AaBbC AaBbCct AaB AaBbcct AaBbCcD Normal 1 No Spac... Heading 1 Subtitle Subtle Em... Heading 2 Title Styles Sign in DI 1:37 ENG S IX Share Find ab Replace Select Editing 8:06 pm 18/08/2022 ▸► + 228%arrow_forward
- hi please help me with this problem need it until 9:06 am thank you. Kindly please make it short, not long. thank you soo much fROM THE PICTURE (A) Write down 10 hazards that you can observe in the said picture. (B) Identify the type or category of hazard (physical, chemical, microbiological, allergenic) that you observed and write its category beside the name of the corresponding hazard. To facilitate the checking of your answers, number them accordingly (1 to 10). Example: 1. nail - physical *arrow_forwardUpon carrying out a mechanism for the following reaction, state which of the following products would be the major product? Question 9.docx 13 KB A. 3,3-Dimethylbutan-2-ol B. 2,2-Dimethylbutan-4-ol OC. 3.3-Dimethylbutan-4-ol O D. 4.4-Dimethylbutan-1-ol O E. 1'-3,3-Dimethylbutyl alcohol Reset Selectionarrow_forwardMISSED THIS? Watch IWE: Half-Reaction Method of Balancing Aqueous Redox Equations in Acidic Solution ; Read Section 20.2. You can click on the Review link to access the section in your e Text. Balance each of the following redox reactions occurring in acidic aqueous solution. K(s) + Cr³+ (aq) → Cr(s) + K+ (aq) Express your answer as a chemical equation including phases. ► View Available Hint(s) Submit ΑΣΦ A chemical reaction does not occur for this question. Part B ? Al(s) + Fe²+ (aq) → A1³+ (aq) + Fe(s) Express your answer as a chemical equation including phases.arrow_forward
- A Dryan Zen 国 MIDTERM-EXAM (1) (Protected View) - Word 요 Share View Help O Tell me what you want to do Insert Design Layout References Mailings Review File Home Enable Editing O PROTECTED VIEW Be careful-files from the Internet can contain viruses. Unless you need to edit, it's safer to stay in Protected View. Tel. NO.. (U45) 204-JJUO NOLOGICAL CO 9001:2015 Certified NAME: D. Stes SHOW THE EXPANDED CONDENSED FORMULA: + 396% 10:50 AM Page 2 of 2 105 words 32°C Mostly sunny 4/23/2022 W O Type here to search 出arrow_forwardGL ー 2. All-purpose Flour 3. Margarine 4. Milk 5. White sugar Additional Activities Activity 1 Directions: Measure the ingredients of a recipe using the ordinary and standard measuring tools. Place them in a separate bowl. After measuring, mix, and set aside. 3 cups All Purpose Flour 1 1/2 c brown sugar 2 tsp baking powder 2. 1/3 cup oatmeal cup oil 1/2c milk 1 tsp baking soda 2 cups banana Question: What are your observations of the volume of the ingredients in using the nonstandard and standard measuring tools? Write your answer your answer sheet. Activity 2 Directions: Visit at least two Carenderias in your area. Interview the owner on howarrow_forwardDIRECTIONS: Fill in the blanks (1, 2,3, & ??) to complete the organizer. A word bank is provided for your reference. ?? is the transfer of____?? energy from one substance to another. Temperature measures the ?? of the moving molecules. ?? means all molecules have stopped moving. 3 3 3 1 2 373° 273 1 2 212 32° 459° 1 2 100° 0° 1 -273° Absolute Zero Avg. Kinetic Energy Thermal Word Bank 2 3 Heat Celsius Fahrenheit Kelvin Scientific theory Used in most other nations & science classrooms Used in U.S.A. Absolute Zero H₂O Boiling Point H₂O Freezing Pointarrow_forward
- Microsoft Teams Login Page | Mi X * (1) Assignments | Microsoft Team X -> Ô https://teams.microsoft.com/_?culture=en-ca&country=DCA&lm=Ddeeplink&Imsrc=homePageWeb&cmpid=WebSign Microsoft Teams Q Search Module 3 File Home Insert Draw View Help Open in Desktop App O Tell me what you want to do I U Ev E E E Arial 12 Tme following tabie compares irie mass of packaging, tolal cost and Tiumber of servirigs of irOzen concentrate and drinking boxes. Use the table to answer questions 40-41 Servings of Prepared Julce Volume of Mass of Packaging (9) Total Cost Рrepared Juice (mL) nts of Juice ($) I frozen concentrate 33.66 1364 5.5 1.20 drinking boxes 78.72 1500 6 2.58 40. Calculate the mass of packaging per serving for both frozen concentrate and drinking boxes. Use the following formula. Mass of packaging Mass of Package per serving Number of Servings Calculations: 123.88 41. Calculate the cost per serving for both frozen concentrate and drinking boxes. Use the following formula. Total Cost pps…arrow_forward26) The floor tiles in SE 27 are about 1 square foot and the lab is about 25 tiles wide and about 36 tiles from front to back. When the emergency shower was demonstrated, in 10. seconds the water in the trash can was about 1 foot deep. One student estimated this was 2.5 gallons. Estimate how deep the room will get in inches after a 15 minute shower. List 3 simplifving assumptions you make in this calculation rea L-36 Tile fiDw ill it cost2 The density of gold is 27l An artist plans to apply gold leaf to a painting with an area of 2.32 f? and a thickness of 1.50arrow_forwardProject PART I. Our Carbon Budget A major driver of global climate change is the emissions of greenhouse gases such as CO₂ into the atmosphere from human activities such as the burning of fossil fuels for transportation, electric power generation, manufacturing, agriculture, home heating, and so forth. Global average temper- atures are now slightly higher than 1° C above their pre-Industrial Revolution levels. Damaging sea level rise and extreme weather events (such as the recent wildfires in Canada that led to the unhealthy air in NYC last summer) will become an increasingly major problem around the world if global average temperature rises more than 1.5° C. Scientists estimate that the total additional amount of CO₂ that can be put into the atmosphere without reaching the 1.5° C level is about 51 parts per million (ppm) or approximately 400 Gigatons (Gt). Let's call 51 ppm our carbon budget. In this project, we want to use linear systems of differential equations to analyze the…arrow_forward
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