your front lawn is 24.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1150 new snowflakes every minute, how much snow, in kilograms, accumulates on your lawn per hour? Assume an average snowflake has a mass of If 1.80 mg. kg/h snow:

Q: A spilled substance in the laboratory may be left unattended/ uncleaned even after a few days. The…

A: Concept is based on laboratory:

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A: Given,Mass of water = 3kgInitial temperature = 14 degrees CelsiusFinal temperature= 53 degrees…

Q: A coal-burning power plant generates 3.5 x 1016J per year. If the coal yields 37 kJ/g, how many…

A: The amount energy produced by coal burning power plant per year = 3.5 x 1013 kJ

Q: After heating up in a teapot, a cup of hot water is poured at a temperature of 209°F. The cup sits…

A: Given: Ta = the temperature surrounding the object = room temp.= 68oF To = initial temperature of…

Q: The specific heat capacity of liquid mercury is 0.14 J/g-k. How many joules of heat are needed to…

A: Given: The specific heat of Hg = 0.14 J/g-K or J/g-0C The initial temperature, (T1) =22.1 0C. The…

Q: How is kinetic and potential energy differ?  How are they related?  Please cite an everyday…

A: When an object is at rest the body is said to possess potential energy. in another case when the…

Q: Which statement is true? Since solids are rigid, their molecules do not possess kinetic energy…

A: The particles of matter are in continuous motion and hence generate kinetic energy by moving…

Q: You burn a 0.6 g jellybean to warm 13 g of water, which increases the temperature of the water 2 °C.…

A:

Q: A www-awu.aleks.com/a O STATES OF MATTER Solving for a gaseous reactant 0/5 The great French chemist…

A:

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A:

Q: A boy takes his dog for a walk. The dog is pulling with a force of 30N to the right and the boy is…

A:

Q: How many kilocalories are present if 81J are produced?

A: Given the energy produced in J = 81 J We have to convert 81 J to kilocalories (kcal). First, we have…

Q: The combustion of 45.0 g of methane (natural gas) releases 2498 kJ of heat energy. How much energy…

A:

Q: How many calories 5000 Joules are?. No computation, no points

A: There are different units of heat-  1- joule 2- calorie

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Q: 1. A student claimed that the flat C lines on the graph occur when the energy is being used to…

A: A phase diagram is a type of map used in physical chemistry, engineering, mineralogy, and materials…

Q: ng kinetic energy

A:

Q: How much heat, in Joules, is absorbed by 60 g of water in order to increase in temperature from 23°C…

A: Interpretation: The amount of heat, in joules absorbed by 60 g of water in order to increase in…

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A: Reactions that absorb heat from the environment are called endothermic reactions. A common example…

Q: 31) H,O, H", heat OH

A: Benzene diazonium salts gives phenol in presence of H2O.H+ Again phenol undergoes coupling reaction…

Q: We use the density of water to calculate the mass of water from its volume. The density of water at…

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Q: A 150-lb person burns about 2700 Calories to run a marathon. How much energy is burned in kJ? Assume…

A: A conversion factor is multiplied to change from one unit to another.

Q: рH - рK, +2 when: [А УНА] - 1000 B) А) [А ИНА] - 100 [А УНА] - 0.01 D) [АУ [НА] - 0.001 E) [АУ [НА)…

A:

Q: What mass of natural gas (CH4)(CH4) must you burn to emit 261 kJkJ of heat?…

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Q: What is the mass of a piece of iron that releases 239.18 joules of heat as it cools from 93.13…

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Q: Which change will lead to a larger change in the kinetic energy of an object,doubling its mass or…

A: Ek      =   ½mv2

Q: if a food label identifies the total number of kilocalories in a bowl of cereal as 140 and the…

A: The total energy in a bowl of cereals = 140 kilocalories  The energy supplied by carbohydrates =…

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A:

Q: Perform the following conversion: 575 calories to Joules (J)

A:

Q: 1. A hot tub is filled with 570 gal of water a. What is the volume of water, in liters, in the tub?…

A: (a)Volume of water (in Liters) is calculated as follows,

Q: Round your answers to the correct number of significant figures. Only use numbers in your answer.…

A: Conversion of temperature into Kelvin scale: -173°C=-173+273.15K=100.15 K127°C=127+273.15K=400.15 K

Q: Question attached

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Q: m Calculate the kinetic energy of a 67. g bullet moving at a speed of 499.

A: Given : mass of bullet = 67. g             speed = 499. m/s  To be calculated :- kinetic energy (J)

Q: convert 531 J to calories

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Q: hite) + 3H2 +49.03kJ C6H6 cation:

A: Mass of carbon = 5.81 g Moles of Carbon = 5.81/12 = 0.484 mol □H = = 49.03 kJ

Q: Convert 51.7 calories to Joules. Answer in units of J.

A: One calorie is equal to 4.184 joules, 1 cal = 4.18 joules

Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A:

Q: Time (minutes) Tomperature (OC)

A: Answer

Q: How many joules of heat are required to change 563 grams of solid ice with a temperature of 260…

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Q: 1. Heat is best defined as massless substance emitted when something burns. a form of potential…

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Q: How many kilocalories are lost when 580g of water cools from 67 degrees celsius to 22 degrees…

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Q: The great French chemist Antoine Lavoisier discovered the Law of Conservation of Mass in part by…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

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Q: A ball has a kinetic energy of 3.60 kJ. If the ball has a mass of 120.0 g. how fast is the ball…

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.