Chemistry » Page 109

Chemistry

Aylin Benjamin

Explain negative and positive acceleration?

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Chemistry

Zion Haley

Compare and contrast plains and plateaus

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Chemistry

Corey Hines

If there are 2g of C6H12O6, what is the volume of the kool-aid

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Chemistry

Cassandra Galvan

What mass is 2.4E25 molecules of NaHCO3?

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Chemistry

Haney

Why does pumping more air into a basketball increase the pressure inside the ball?

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Chemistry

Kinsley Olsen

For each of these equations, determine the change in the number of moles of gas, δngas.?

A.) (NH4) 2 CO3 (s) = 2NH3 (g) + CO2 (g) + H2O (g)

B.) H2 (g) + Cl2 (g) = 2HCl (g)

C.) 2H2 (g) + O2 (g) = 2H2O (l)

D.) 2Na (s) + Cl2 (g) = 2NaCl (s)

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Chemistry

Steve Mckenzie

How does the moon move?

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Chemistry

String Bean

Which noble gas has the same electron configuration as the oxygen in a water molecule?

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Chemistry

Alvin Brooks

If an increase in tematute accompanies a reaction, what occurred?

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Chemistry

Cherish Cole

Calculate the empirical formula the compound with the following percent composition: 27.59%C 1.15%H 16.09%N 55.17%O

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Chemistry

Henry Fuller

What is 2000 converted to scientific notation

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Chemistry

Gabriel Downs

Hard water deposits (calcium carbonate) have built up around your bathroom sink. Which of these substances would be most effective in dissolving the deposits? Select one:

a. ammonia

b. bleach (sodium hypochlorite)

c. lye (sodium hydroxide)

d. vinegar (acetic acid)

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Chemistry

Yaretzi Fisher

How does plasma, the fourth state of matter, differ from gas?

A. Plasma has indefinite shape and volume; gas does not.

B. Plasma has definite shape and volume; gas does not.

C. Plasma conducts electricity; gas does not.

D. Plasma cannot conduct electricity; gas can.

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Chemistry

Melina Dominguez

Using the relative E0 values determine which of the following reactions are electrically possible. Mg (s) + Br2 (I) ⟶ MgBr2

Choose the answer from the parenthesis.

This equation shows that Mg is (reduced or oxidized)

This equation shows that Br2 is (reduced or oxidized)

Can this redox reaction take place? (yes or no)

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Chemistry

Grover

3 x 1023 molecules of element Z have a mass of 38 g. What is the mass of 1 mole?

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