Chemistry » Page 28

Chemistry

Roderick Nunez

According to the kinetic molecular theory, when a gas particle hits something what will happen?

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Chemistry

Gracie Figueroa

Protons and neutrons are made from which of the following?

hadrons

down quarks only

up quarks and down quarks

up quarks only

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Chemistry

Samson Greer

Not all of the water falls as rain, snow, or sleet evaporates. What happens to the rest of the water?

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Chemistry

Christopher Kennedy

58.5 million excess electrons are inside a closed surface. What is the net electric flux through the surface?.

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Chemistry

Justus Davidson

Nitrogen monoxide and oxygen, both colorless gases, form a red-brown gas when mixed. Nitrogen monoxide and oxygen are called the

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Chemistry

Rigoberto Vazquez

What quantity of heat is needed to raise the temperature of 5.0g of a substance from 20 c to 30 c if the specific heat?

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Chemistry

Thaddeus Proctor

Compare mechanical energy and thermal

energy.

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Chemistry

Quinn Simmons

How many covalent bonds can each carbon atom form?

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Chemistry

Markus Newman

Hich element is likely to be the most brittle?

a. selenium

b. cobalt

c. platinum

d. zinc

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Chemistry

Ty

What units should they have used in order to make the correct conversion

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Chemistry

Nathanial Warren

The brown solid that formed is zinc copper oxygen iron

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Chemistry

Brent

a solution is approximately 332.0 g of salt per kilogram of solution. Assume this salt is all NaCl. What is the molality of this solution?

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Chemistry

Ty Baker

What burns fuel to release thermal energy

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Chemistry

Roselyn Marks

Scientist call an organism that has two different alleles for a trait

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Chemistry

Yazmin Montgomery

The molar mass of water (H2O) is 18.02 g/mol. Yun needs 0.025 mol H2O for a laboratory experiment. She calculates that she needs 72.0 g H2O for the experiment.

Yun's calculation was incorrect because she set up her unit conversion incorrectly. What is the correct way for Yun to set up her calculation?

A. N. S: (0.025 mol H2O) 18.02g H2O / 1 mol H2O

How much water does Yun need for the experiment?

A. N. S: 0.45 g

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