Chemistry » Page 64

Chemistry

Audrina Mullen

Which answer choice best explains why atoms of carbon-14 (C-14) are unstable?

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Chemistry

Liam

When can polar bears take care of themselves

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Chemistry

Mekhi Lloyd

What are two objects used to find density

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Chemistry

Justine Edwards

A sample of oxygen gas (O2) at STP has a mass of 48.0 grams. What is the volume of the gas?

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Chemistry

Crackers

What is the oxidation number for Our in NaHCO3?

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Chemistry

Jakob Gilmore

To determine if a reaction is exoteric a student should use

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Chemistry

Billy Rush

Which of the following are physical properties of a penny? Choose all that are correct.

Select one or more:a. Slightly red in color. b. Conducts electricity very well. c. Reacts to oxygen when heated. d. Resists corrosion from most acids.

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Chemistry

Guest

NO2 and N2O4 undergo the reaction shown. When a sealed

container of NO2 reaches chemical equilibrium, which must be true?

A) No N2O4 is present.

B) No chemical reactions are occurring.

C) The rates of the forward and reverse reactions are equal.

D) The maximum number of molecules has been reached.

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Chemistry

Viviana Carr

What differences did you notice in the different states of water

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Chemistry

Morgan Valenzuela

1. Bubbling or fizzing is an indicator of

a. property change

b. phase change

c. physical change

d. chemical change

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Chemistry

Ryder Horn

In the second step of this reaction, isocyanic acid reacts to form melamine and carbon dioxide: HNCO (l) →C3N3 (NH2) 3 (l) + CO2 (g) Balance this reaction and enter the coefficients below.

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Chemistry

Patrick Pineda

If the Kelvin temperature of a gas is tripled and the volume if doubled, the new pressure will be ___. A. 3/2 the original pressure B. 1/6 the original pressure C. 5 times the original pressure D. 2/3 the original pressure

the answer isnt b or c

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Chemistry

Deandre Riley

To squeeze gas into a smaller space

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Chemistry

Harper Benton

What kind of solution would have a Kb value much greater than 1?

A. a weakly acidic solution

B. a strongly basic solution

C. A strongly acidic solution

D. A weakly basic solution

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Chemistry

Larsen

Zoom all the way in to Daphne Major. Describe its appearance in two sentences.

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