General Chemistry

Question 1

What is a positively charged ion called?

Answer 1

Cation

Question 2

What is a negatively charged ion called

Answer 2

Anion

Question 3

What is an atom with any charge called

Answer 3

Ion

Question 4

What is a bond formed between anions and cations?

Answer 4

Ionic bond

Question 5

What is the term used by chemists to describe the number of bonds that an atom forms in a compound

Answer 5

Valences

Question 6

Bond formed by atoms that share a pair of electrons

Answer 6

Covalent bond

Question 7

Number of protons or electrons in a neutral atom

Answer 7

Atomic number

Question 8

Neutral particle that’ is composed of two or more atoms joined together by covalent bonds

Answer 8

Molecule

Question 9

What are the horizontal rows in the periodic table called?

Answer 9

Periods

Question 10

What are the vertical rows in the periodic table called

Answer 10

Groups

Question 11

What is a molecule that contains 2 atoms?

Answer 11

Diatomic molecule

Question 12

What is the name for NaCl

Answer 12

Sodium chloride

Question 13

What is the name for CO

Answer 13

Carbon monoxide

Question 14

What is the formula for tetraphosphorus pentasulfide

Answer 14

P4S5

Question 15

What is the formula for disilicon hexaflouride

Answer 15

Si2F6

Question 16

What is the prefix for 1

Answer 16

Mono

Question 17

What is the prefix for 2

Answer 17

Di

Question 18

What is the prefix for 3

Answer 18

Tri

Question 19

What is the prefix for 4

Answer 19

Tetra

Question 20

What is the prefix for 5

Answer 20

Penta

Question 21

What is the prefix for 6

Answer 21

Hex

Question 22

What is the name of Ba(NO3)2

Answer 22

Barium nitrate

Question 23

What is the name of K2SO4

Answer 23

Potassium sulfate

Question 24

Is this compound ionic or molecular?

Sodium sulfide

Answer 24

Ionic

Question 25

Is this compound ionic or molecular SO3

Answer 25

Molecular

Question 26

The indicators of chemical change are?

Answer 26

A new colour appears Heat is produced or absorbed A gas is produced A precipitate forms The reaction is hard to reverse

Question 27

An unknown element has four shells and two valence electrons which element is it

Answer 27

Calcium

Question 28

How many valence electrons does fluoride have and what is its charge?

Answer 28

7 valence electrons and -1 charge

Question 29

What is pH?

Answer 29

A measure of how acidic or basic a solution is

Question 30

What is the pH scale?

Answer 30

a numerical scale ranging from 0 to 14 that is used to compare the acidity of solutions

Question 31

What would a pH level of 7 be called

Answer 31

Neutral

Question 32

Classify each of the following as highly acid, slightly acidic, neutral, slightly basic or highly basic: A solution with a pH of 13 A solution with a pH of 6 A solution with a pH of 1 The moisture of your skin Water in a swimming pool (ideally)

Answer 32

highly basic slightly acidic highly acidic slightly acidic (4.5 to 6.0) slightly basic