Polytechnic Chemistry 3

Question 1

What is an isotope?

Accepted Answer

Atoms of the same element with different numbers of neutrons

Answer

Atoms of different elements with the same mass

Answer

Atoms with different numbers of protons

Answer

Atoms with the same number of electrons and neutrons

Question 2

What is Boyle's Law in terms of gas pressure and volume?

Accepted Answer

At constant temperature, pressure and volume of a gas are inversely proportional

Answer

At constant pressure, volume and temperature are directly proportional

Answer

At constant volume, pressure and temperature are directly proportional

Answer

Gas volume is constant regardless of pressure

Question 3

What is an acid according to the Brønsted-Lowry definition?

Accepted Answer

A proton donor

Answer

A proton acceptor

Answer

An electron pair donor

Answer

An electron pair acceptor

Question 4

What is the valence shell of an atom?

Accepted Answer

The outermost electron shell

Answer

The innermost electron shell

Answer

The shell with the most electrons

Answer

The shell closest to the nucleus

Question 5

What is Le Chatelier's Principle?

Accepted Answer

A system at equilibrium will shift to counteract any imposed change

Answer

Reactions always proceed to completion

Answer

Catalysts shift equilibrium position

Answer

Temperature has no effect on equilibrium

Question 6

How many electrons can the second electron shell hold?

Accepted Answer

8

Answer

2

Answer

18

Answer

32