Lab 2

1:51 PM 68 liveworksheets.com/1-zv181 4 ater Worksheet structions: Use the words from the word bank to complete the following sentences. Solvent Hydrogen Oceans Ponds Cooking Cleaning Boiling Freezing Properties Colorless Tasteless Oil Neutral 1. Water is known as the universal because most substances dissolve in water. 2. The point of water is 100°C or 212°F. 3. Water has two atoms of and one atom of 4. can not dissolve in water. 5. Pure water is and odorless. 6. Water as several physical and chemical 7. Streams, Rivers, and are sources of water. 8. We use water for Jand drinking. 9. The point of water is 0°C or 32°F. 10. Water is a substance and has the pH of 7. SELIVEWORKS

* OWLV2 | As E My Home * OWLV2 | Or x Z Molecular P Pearson Si X I Molar mas gnment/takeCovalentActivity.do?locator=assignment-take [Review Topics] [References) Use the References to access important values If needed for this question. The formula for sodium chloride is NaCI. a. How many grams of sodium chloride are present in 2.18 x 1021 formula units of this compound? grams b. How many formula units of sodium chloride are present in 9.01 grams of this compound? formula units Submit Answer Retry Entire Group 9 more group attempts remaining Previous Next 回可

4. Fill in the blanks. Acid Ка pKa Methanoic acid, HCOOH 1.70 x 104 Ethanoic acid, CH3COOH 1.80 x 105 4.90 x 10-10 Hydrocyanic acid, HCN Nitrous acid, HNO2 Carbonic acid, H2CO3 Hydrofluoric acid, HF 4.50 x 104 4.47 x 10-7 7.10 x 104 Base Kb pKb Ammonia, NH3 1.80 x 10-5 Hydrazine, N2H4 Ethylamine, C2HŞNH2 Phenylamine, CgH$NH2 Urea, (NH2)2CO 1.80 x 10-5 5.60 x 104 3.80 x 10-10 1.5 x 10-14 5. The pH of a 0.15 M butylamine (C4H,NH2) solution is 12.0 at 298 K. Calculate a) the dissociation constant of the base and b) the degree of dissociation 6. Calculate the concentration of H• ions in a 0.2 M HCN solution. Given value of pKa for HCN is 9.3. 7. The pkb value of an aqueous solution of ammonia is 4.70. Calculate the concentration of OH- ions in 0.2 mol dm3 ammonia solution. 8. The degree of dissociation of a monoprotic organic acid is 0.18% if its concentration is 0.01 M. Calculate a) the dissociation constant b) the pka value of this acid C. Salt Hydrolysis 1. Determine each of the…

* OWLV2 | As X E My Home * OWLV2 | On x 2 Molecular Pearson Si Molar mas X signmejnt/takeCovalentActivity.do?locator=assignment-take (Review Topics) [References] Use the References to access important values if needed for this question. The formula for sulfur hexafluoride is SF6. a. How many molecules are in 6.61 grams of sulfur hexafluoride? molecules b. What is the mass in grams of 2.40 × 102 molecules of sulfur hexafluoride? grams Submit Answer Retry Entire Group 9 more group attempts remaining

+ du/ultra/courses/_514124_1/cl/outline 1 → Remaining Time: 56 minutes, 57 seconds. Question Completion Status: QUESTION 1 Match the name with the formula. You will need to determine FIRST if the name/formula is IONIC of COVALENT (Simple Binary Molecular). Then name from there. It is easy to get confused so determine WHICH category it is in first and go from there. ✓p 3- ✓ PO43- ✓ NH4NO3 ✓ KNO3 ✓KCI ✓ H₂CO3 - H3PO4 QUESTION 2 A. carbonic acid B. nitrogen nitrate C. None of these D. nitric acid E. phosphide F. nitrogen ammonium G. phosphate H. potassium coride 1. ammonium nitrate J. phosphoric acid K. trinitrogen hydride ▬▬ L. ammonium nitrogen trioxide M. potassium nitrate Click Save and Submit to save and submit. Click Save All Answers to save all answers. 1. Save All Answv

Consider these compounds: A. Ba3(PO4)2 B. Ca3(PO4)2 C. PbCrO4 D. CaCrO4 Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters without punctuation, e.g, ABC.) Without doing any calculations it is possible to determine that barium sulfite is more soluble than fill in the blank 1, and barium sulfite is less soluble than fill in the blank 2. It is not possible to determine whether barium sulfite is more or less soluble than fill in the blank 3 by simply comparing Ksp values.

Consider these compounds: A. Ba3(PO4)2 B. Ca3(PO4)2 C. PbCrO4 D. CaCrO4 Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters without punctuation, e.g, ABC.) Without doing any calculations it is possible to determine that barium sulfite is more soluble than _________, and barium sulfite is less soluble than ______ It is not possible to determine whether barium sulfite is more or less soluble than _________ by simply comparing Ksp values

You are a forensic investigator. The data for a crime scene is in the following chart. Soluble in oil Conducts Melting point Soluble in water electricity when dissolved in water Crime scene Yes No Yes high powder Which statement bests constructs an argument to identify the crime scene powder as one of the following: KCI, C10H8, C6H&O6? OA. The crime scene powder is KCI, because it is the only ionic compound choice. Only Ionic compounds conduct electricity when dissolved in water. B. The crime scene powder is C10H8 or C6H8O6 because they are both Ionic compounds. They are soluble in water, have a high melting point, and conduct electricity. C. The crime scene powder is C10H8 or C6H8O6 because they are both Covalent compounds. They are soluble in water, have a high melting point, and conduct electricity. O D. The crime scene powder is C10H8, because it conducts electricity, has a high melting point, and is soluble in water.

A. Look at each formula in the list below and identify each As Acid (A), Ionic (I), or Molecular (M) in the first column As binary (B) or polyatomic (P) in the second column As Type II (T) if it contains a type II metal Formula Acid, Ionic, or Molecular Binary or Polyatomic ion Type II metal KI НСІ BaSO 4 SO 2 Fe(NO 3 ) 2 Hg H 2 SO 4

Formula 1. XeOs 2. HCl(gas) 3. HCl(aq) 4. CBT4 5. N₂F6 6. PC13 7. NO 8. H₂SO4 9. HC₂H302 10. OF2 11. HNO₂ 12. HNO3 13. BC13 14. H₂O naming rules than oxyacids. Covalent or acid? Chemical Name tempting to

f. g. h. OH HgSO, H₂SO H₂O 1. PCC, DCM 2. CH3Li, Et₂O 3. H₂O + 1. H₂O 2. CH3OH

Predict the chemical formulas of the compounds formed by the following pairs of ions.

a b 1. This molecule binds to oil and dirt through part a and precipitates them so you can wipe them off. O Na II. This molecule binds to oil and dirt through part b and precipitates them so you can wipe them off. OIV III. This molecule makes a micelle and encaptures oil and dirt and then associates with cotton/water through part a so you can rinse or wipe them off. OI IV. This molecule makes a micelle and encaptures oil and dirt and then associates with cotton/water through part b so you can rinse or wipe them off.

Nomenclature A. Look at each formula in the list below and identify each As Acid (A), Ionic (I), or Molecular (M) in the first column As binary (B) or polyatomic (P) in the second column As Type II (T) if it contains a type II metal . Formula Acid , Ionic, or Molecular Binary or Polyatomic ion Type II metal KI НСІ BaSO 4 SO 2 Fe(NO 3 ) 2 H 2 SO 4 B. Write names for the ions found in each ionic compound and indicate the charge on each individual ion (not the total charge). Include roman numerals with the cation if necessary. Name of Cation Charge Name of Anion Charge ScCl 3 PbS2 K 2 SO 4 Al(C 2 H 3 O 2 ) 3 Fe 2 O 3 Mn(HCO 3 ) 2 2 CsMnO 4 (NH 4 ) 2 SO 3 37

Sort (from smallest to largest) the number of ethanol molecules present in each of these samples. Drag and drop options into correct order and submit. For keyboard navigation... SHOW MORE V 3.5 L of gaseous ethanol 3.5 L of solid ethanol 3.5 L of liquid ethanol II II II

Part A 3 p 4n Express your answer as a chemical symbol or an ion. Search 2 e 0 ΑΣΦ A chemical reaction does not occur for this question. P Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Po

Br H. H. cat. H* O,N i) NH2 cat. H*

How do you complete this table correctly?

- Spring21 - SMITH > Activities and Due Dates > HW 3 Assignment Score: I Resources Give Up? O Hint 0% Check Answer Question 9 of 27 Ionic Molecular Answer Bank Na,0 FeCl CH, CO. abounus tems ef e i 9:03

Here are the formulas for each substance: Sucrose: C12H22O11C_{12}H_{22}O_{11}C12​H22​O11​ Copper (I) Chloride: CuClCuClCuCl Iodine: I2I_2I2​ Potassium Iodide: KIKIKI Our goal is to try to find a pattern for which compounds conduct electricity when dissolved in water, and which don't.   One hint is to look for patterns in which kinds of atoms form substances that conduct when dissolved, and which kinds of atoms form substances that don't conduct when dissolved.   Here is a periodic table you can use.       Let's start by finding the location on the periodic table for the atoms for substances that conduct when dissolved. What do you notice about where the atoms are?

i. PPH3 Me Ph ii. n-BuLi Me ii. Me Me

Lion belOW. cat. H-A MeO MeOH + HO

10. Type the formula for phosphate. (Capitalize when required, type the number next to each element and type a space followed by the charge. Ex. H3O 1+ is the hydronium ion). * Your answer Send me a copy of my responses. Submit

+2 Pb Thallium Lead 200.592 2818 32 182 1832 18 1 204.383 207.2 28 18 32 10 2818 32 18 3 111 112 +2 Mt Ds Hassium Meitnerium Darm (264] 32 32 122 2818 32 32 13 2 28 18 32 32 [269] 59 15. NaOH Ba(NO), (1)balanced eanation (10101lm介 10nice (6) Total mot ianic eanation (d)net lonic eqnoition

Example: OF2 → +2 1. C2 2. K2O2 3. NazS 4. NazS2O3 5. NaN2 6. CH4 7. NHẠC1 8. OF2

A student, Ken, is given a mixture containing two carbonate compounds. The mixture includes MgCO, and (NH,),CO,. The mixture is 69.14% CO, is by mass. What is the mass percent of MgCO, in the mixture? mass percent of MgCO3: TOOLS X10 wc2 (1).pdf wc2.pdf WC1 (1).pdf Show All 3,417 00 16 étv W MacBook Air 80 DII DD 000 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 2$ & 4 5 7 8. 9. delete NA of

If you take 1 teaspoon of salt and dissolve in 1 cup of water, what would look like? Sketch in structural formulas of the molecules/compounds involved.

1. The mass percent of a solution prepared by dissolving 36.4 g of NaCl in 63.6 g of water is:  2. The name of the ion BrO3- is bromate. What would be the name of the acid formed with it?

• Sucrose: C12 H22O11 • Copper (I) Chloride: CuCl • lodine: I2 • Potassium lodide: KI Our goal is to try to find a pattern for which compounds conduct electricity when dissolved in water, and which don't. One hint is to look for patterns in which kinds of atoms form substances that conduct when dissolved, and which kinds of atoms form substances that don't conduct when dissolved. Here is a periodic table you can use. H. Не yrgen 1008 Helum 4000 10 metals nonmetals metaloids Li Be Ne Carbon Ovgn Pucene Neon Lihum 6.54 Berylum 9012 11 12 13 14 15 16 17 18 Na Mg Al Si P. CI Ar Prosphonue 00.974 Sutu Cre 35.45 Argn Sodium 22 999 Magresiu 4305 28.982 32.06 310 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 19 20 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Galum 6.723 Bomre Cebat Cnppr Scandum 44956 Oron 51 Tnum Vanadum 72630 79.904 Calcium 40.07 55.845 N 2492 20.0 45 46 47 48 49 50 51 53 53 54 37 38 39 40 41 42 43 44 Rb Sr Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te Xe Telu 127A0 thodu…

Name the family to which each organic compound belongs. The first answer has been filled in for you. compound family H. CH3-C CH, alcohol OH CH, CH, 0=C-C CH CH, II CH, — С — сH, — сH II Don't Know Submit 2021 McGraw Hill LLC. All Rights Reserve esc 80 F1 F2 F3 DII F4 F6 F7 FB F9 %23 2$ & 71 3 8. Q W R T tab Y caps lock D G K chift Z C M fn B

Using the redox reaction given below, determine which element is oxidized and which element is reduced. 2 Al+ 6 HC1 – 3 H2 + 2 A1C13 (The rules for assigning Oxidation States ) 1) The oxidation numbers of the atoms in a neutral molecule must add up to zero. 2) Group I - +1 ; Group II → +2; Group III – +3 3) Fluorine -1 (always) Halogens – -1 (except in compounds with O and other halogens) 4) Hydrogen - +1 (except in metal hydrides, e.g. LiH, Rule 2 and H has -1) 5) Oxygen- --2 (except in compounds with F, Rule 3)

Consider these compounds: A. PbBr2 B. Ag,Cro4 C. Pb3(PO4)2 D. Ca3(PO4)2 Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters without punctuation, e.g, ABC.) Without doing any calculations it is possible to determine that zinc phosphate is more soluble than phosphate is less soluble than and zinc It is not possible to determine whether zinc phosphate is more or less soluble than | by simply comparing Ksp values.

23 SA 10. Write the correct formulas for the following matched common name/chemical name compound. See Appendix B. Common Name a. acid of sugar b. aqua fortis c. barium white, fixed white d. bitter salt, Epsom salts e. blue vitrol f. calomel Chemical Name oxalic acid nitric acid barium sulfate dihydrate oil of vitrol m. talc or talcum n. Glauber's salt magnesium sulfate heptahydrate copper(II) sulfate pentahydrate mercurous chloride g. caustic potash h. Chile saltpeter, sodium nitre sodium nitrate i. chrome yellow lead(IV) chromate j. Indian red, jeweler's rouge ferric oxide k. lime calcium oxide 1. sulfuric acid magnesium silicate sodium sulfate potassium hydroxide

Explain your rationale for using the summative assessment (below) from the lesson plan on mixing substances in a 5th-grade classroom based on the below standard and learning objective, including how you will use student outcomes to inform future instructional decisions.  Summative Assessment  Summative: Components of the Lab Report Purpose: The student should clearly state the purpose of the experiment, which is to determine whether the mixing of two or more substances results in new substances. Procedure: The student should describe the steps they took to conduct the experiment. This includes the substances they chose to mix and the safety equipment they used. Observations: The student should record any observable changes that occurred when the substances were mixed. This could include a color change, the formation of a precipitate, or a change in temperature. Conclusion: The student should state whether a new substance was formed based on their observations. They should also…

8. Fill in the following boxes. . HO. heat HO. SOC2 NaN3 1. he t 2. H2C 2 Mel +

Consider these compounds: A. Zn3(PO4)2 B. Ag₂CO3 C. Ca3(PO4)2 D. Ag₂SO4 Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters without punctuation, e.g, ABC.) Without doing any calculations it is possible to determine that barium fluoride is more soluble than and barium fluoride is less soluble than. It is not possible to determine whether barium fluoride is more or less soluble than values. by simply comparing Ksp

Two simulations that were used are below:  This activity is structured as a game, wherein your challenge is to create correct ionic compound formulas by combining individual ions based on their charges. Once you correctly connect the atoms in the interactive website, a common use for that compound will be revealed. In this worksheet, you must record both the correct formula for each of the seven ionic compounds and their common uses as revealed by the interactive program.    Throughout the activity, you will have the option of skipping each compound – if you choose to do this, its common use will not be revealed. You must correctly write the formulas and match the common uses. Website for first simulation:  https://www.learner.org/wp-content/interactive/periodic/bonding Click “Begin” on the first page you see. For each compound name listed at the top of the interactive, choose the correct cation and anion which you think belong to the formula for that compound.        For example:…