Chemistry » Page 6

Chemistry

Uriah

What is the strongest intermolecular force

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Chemistry

Mariana Haney

If a sample of hydrochloric acid is neutralized with sodium hydroxide, what products are formed?

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Chemistry

Angeline Camacho

Prior to the development of DNA fingerprinting, blood type could be used to determine possible parentage. Although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. Which of the following is a true statement that can be made about parentage based on blood typing?

A. a parent with o blood type could never have a child with A blood type

b. a parent with type O blood could never have a child with type B blood

C. a parent with type A B blood never have a child with type B blood

D. a parent with type A B blood can ever have a child child with type O blood.

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Chemistry

Deegan Pena

At room temperature, which of the following is the most compressible?

A. One liter of oxygen, a gas

B. One liter of water, a liquid

C. One liter of mercury, a liquid

D. One liter of iron, a solid

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Chemistry

Litzy Mcmahon

A spring scale is best defined as

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Chemistry

Singh

Which of the following describes a critical component of a "fair test"?

A fair test should include several confounders.

A fair test will always support the scientist's hypothesis.

A fair test should have a specific methodology for data collection.

A fair test should study something previously not understood, like an aspect of human behavior.

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Chemistry

Simon Shelton

Exponatial notation is used for a / writing very small numbers b/writing very large numbers c/avoid tedious work d/all above

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Chemistry

Janiyah Pittman

Match each feature created by erosion to the correct description

| a channel of connected grooves created by

runoff

stream

one of many channels that connect to form a

river

tributary

a small groove in soil created by runoff

gully

CH

a series of connected channels that fills with

water

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Chemistry

Vincent

Which of the following statements regarding bond energies is FALSE

A

All chemical bonds are hard to break

B

Some chemical bonds are easier to break than others.

C

Bond energy is the amount of energy it takes to break a chemical bond

D

Every chemical bond has its own unique bond energy.

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Chemistry

Giana Frederick

As a substance changes phase from a gas to a liquid to a solid, with the exception of H2O, the molecules become closer together? true or false

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Chemistry

Ashly Spencer

An excess of hydrogen ions in the body fluids can have fatal results because this can

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Chemistry

Chaya Rodriguez

How many liters of oxygen gas, at 285 K and 1.2 atm, will react with 35.4 grams of calcium metal? Show all of the work used to solve this problem.

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Chemistry

Conductor

How many moles of H2So4 are in 2.50 L of 4.25 M aqueous solution?

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Chemistry

Sage Bradford

A swimming pool measures 50.0 meters by 25.0 meters. How many grams of water are needed to fill the pool, whose average depth is 7.6 feet? Assume the density of water to be 1.0 g/mL. Use significant figures. Use "E" for scientific notation. Do not enter "grams" as part of your answer.

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Chemistry

Natalie

Enzymes called kinases are responsible for

a. removing electrons from substrates

b. enzymes that catalyze the transfer of protons from one molecule to another

c. adding hydrogens to substrates

d. adding phosphate groups (i. e., phosphorylation of substrates)

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