Chemistry » Page 41

Chemistry

Jesus

Explain how geckos climb glass.

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Chemistry

Clarissa Roach

Water that is returned to the environment after secondary treatment is known as

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Chemistry

Boston Shepherd

The number 0.00003007 expressed in exponential notation is

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Chemistry

Jeffery Humphrey

What is it called when evaporation takes place beneath the surface of a liquid

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Chemistry

Mendoza

The purpose of a scientific investigation is

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Chemistry

Bentley Braun

A sample of H2 at 1.5 atm has its pressure decreased to 0.50 atm,

producing a new volume of 750 mL. What was the original volume?

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Chemistry

Itchy

Mercury-197 has a half life of 3 days. Starting with 300 grams, how much remains in 3 weeks? (Round to two places)

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Chemistry

Dania

Which element forms the basis of all organic compounds

Nitrogen

Carbon

Oxygen

Hydrogen

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Chemistry

Rodrigo Henson

Two reasons why a scientist might want to study the DNA of strawberries?

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Chemistry

Guest

A sample of an ideal gas at 1.00 atm and a volume of 1.84 L was placed in a weighted balloon and dropped into the ocean. As the sample descended, the water pressure compressed the balloon and reduced its volume. When the pressure had increased to 30.0 atm, what was the volume of the sample

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Chemistry

Angelique Buckley

How do you think you can use the calorimeter to compare the specific heat capacities of a substance?

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Chemistry

Peyton

What does the law of conservation of mass state?

a. mass cannot be created nor destroyed in a chemical reaction.

b. mass can be created and destroyed during a chemical reaction.

c. mass can be created but not destroyed in a chemical reaction.

d. mass can be destroyed but not created during a chemical reaction

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Chemistry

Violet

Explain what states are changing in these examples

(A) Condensation:

(B) Evaporation:

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Chemistry

Hana Clayton

Give an example of a two face mixture and describe how you would separate the substances

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Chemistry

Chaya Rodriguez

A dependent variable is

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