$$\text{Atomic Mass} - \text{Atomic Number}$$

$$\mathrm{C_6H_{12}O_6$ + 6O_2 \rightarrow 6CO_2 + 6H_2O + \text{energy}}$$

Question 1

Which subatomic particle is found inside the nucleus and has no charge?

Accepted Answer

Neutron

Question 2

How many electrons can the second energy level of an atom hold?

Accepted Answer

8

Question 3

An atom of carbon has an atomic number of 6 and an atomic mass of 12. How many neutrons does it have?

Accepted Answer

6

Question 4

Which of the following best describes an ion?

Accepted Answer

A particle with a changed number of electrons

Question 5

What type of bond is formed when two atoms share electrons unequally, resulting in partial charges?

Accepted Answer

Polar covalent bond

Question 6

Which property of water allows it to absorb large amounts of heat before changing temperature?

Accepted Answer

High specific heat capacity

Question 7

What is the pH of pure water?

Accepted Answer

7

Question 8

Which of the following is a correct example of a chemical compound?

Accepted Answer

Salt (NaCl)

Question 9

If an atom has 10 electrons, what is its electron configuration and is it stable?

Accepted Answer

2 in the first level, 8 in the second; stable

Question 10

Which element makes up the largest portion of the mass of a human being?

Accepted Answer

Oxygen

Question 11

What is the formula to calculate the number of neutrons in an atom?

Accepted Answer

$$	ext{Atomic Mass} - 	ext{Atomic Number}$$

Question 12

Which of the following is true about isotopes?

Accepted Answer

They have different numbers of neutrons

Question 13

What type of bond holds water molecules together?

Accepted Answer

Hydrogen bond

Question 14

Which property of water is responsible for the formation of a meniscus in a graduated cylinder?

Accepted Answer

Adhesion

Question 15

A solution is made by dissolving iced tea mix in water. What is the solute?

Accepted Answer

Iced tea mix

Question 16

Which of the following best describes a molecule?

Accepted Answer

A group of atoms held together by covalent bonds

Question 17

What is the effect of a coefficient in a chemical equation?

Accepted Answer

It affects all elements in the compound that follow it

Question 18

Which of the following is a property of water that is crucial for life on Earth?

Accepted Answer

Ability to dissolve many substances

Question 19

What happens to the pH of a solution when NaOH is added?

Accepted Answer

It increases

Question 20

Which of the following is a correct balanced chemical equation for cellular respiration?

Accepted Answer

$$\mathrm{C_6H_{12}O_6$ + 6O_2 ightarrow 6CO_2 + 6H_2O + 	ext{energy}}$$

General Chemistry Fundamentals: Atoms, Elements, Bonding, Water, and Chemical Equations

Study Guide - Practice Questions