1. ___ Acts as an acid in the following reaction: NH3 + PH2 --> NH2^- +PH4^+ a.

Question

1. ___ Acts as an acid in the following reaction: NH3 + PH2 --> NH2^- +PH4^+

a. PH3

b. NH3

c. both NH3 and PH3

d. NH2^-

2. In a hydroelectric power plant, you have the conversion of ____.

a. potential energy to kinetic energy

b. radiation to heat energy

c. chemical energy to heat energy

d. fossil fuel heat energy to nuclear energy.

3. A transformer ____.

a. typically violates Ohm's law

b. allows direct current voltages to raised or lowered

c. relies on magnetic force to operate

d. makes transferring low loss, high voltage, current useful

4. In a nucleus of the atom, we have ____.

a. protons and electrons

b. protons and neutrons

c. neutrons and electrons

d. neutrons only

5. Which of the following amounts is closest to the molar mass of C8H10N4O2?

a. 1.30lbs

b. 1.9419kg

c. 200g

d. 128.44g

6.Temperature is generally proportional to a substance's____.

a. chemical energy

b. vibrational potential energy

c. rotational kinetic energy

d. average translational kinetic energy

Explanation / Answer

1)a. PH3

2)a. potential energy to kinetic energy

3) b allows direct current voltages to raised or lowered

4)b. protons and neutrons

5)b. 1.9419kg

6)d. average translational kinetic energy

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