Untitled Deck

Question 1

What type of elements form ionic compounds?

Answer 1

Metals and non-metals

Question 2

What type of ion do metals form?

Answer 2

Positive ions (cations)

Question 3

What type of ion do non-metals form?

Answer 3

Negative ions (anions)

Question 4

What is the ionic charge of elements in Group 1?

Answer 4

+1

Question 5

What is the ionic charge of elements in Group 2?

Answer 5

+2

Question 6

What is the ionic charge of Group 17 elements?

Answer 6

–1

Question 7

Name the compound: BeCl₂

Answer 7

Beryllium chloride

Question 8

What is the formula for potassium iodide?

Answer 8

KI

Question 9

What is the criss-cross method used for?

Answer 9

To balance charges when writing formulas for ionic compounds

Question 10

Name the compound: Na₂SO₄

Answer 10

Sodium sulfate

Question 11

What is the formula for silver nitrate?

Answer 11

AgNO₃

Question 12

What is a multivalent metal?

Answer 12

A metal that can form more than one type of ion (e.g., Fe²⁺, Fe³⁺)

Question 13

Name the compound: Cr₂O₃

Answer 13

Chromium(III) oxide

Question 14

Name the compound: CrO

Answer 14

Chromium(II) oxide

Question 15

What is the formula for iron(II) oxide?

Answer 15

FeO

Question 16

What type of elements form molecular compounds?

Answer 16

Non-metals only

Question 17

How is a covalent bond formed?

Answer 17

By sharing electrons

Question 18

Name the compound: N₂O₃

Answer 18

Dinitrogen trioxide

Question 19

What is the formula for carbon monoxide?

Answer 19

CO

Question 20

What are the 7 diatomic elements?

Answer 20

H₂, O₂, F₂, Br₂, I₂, N₂, Cl₂ (Dr. HOFBrINCl)

Question 21

What is a chemical reaction?

Answer 21

A process where substances change into new substances

Question 22

What are the starting substances in a chemical reaction?

Answer 22

Reactants

Question 23

What are the ending substances in a chemical reaction?

Answer 23

Products

Question 24

What does the law of conservation of mass state?

Answer 24

Mass is neither created nor destroyed in a chemical reaction

Question 25

Why must chemical equations be balanced?

Answer 25

To show conservation of mass

Question 26

List the 5 types of chemical reactions.

Answer 26

* Synthesis * Decomposition * Single displacement * Double displacement * Combustion

Question 27

What does the activity series show?

Answer 27

The reactivity of elements, especially metals

Question 28

Can a metal replace another metal above it in the activity series?

Answer 28

No

Question 29

Why are acids and bases dangerous?

Answer 29

They can burn skin, damage tissues, and be corrosive

Question 30

What are the properties of acids?

Answer 30

* Sour taste * React with metals/carbonates * Conduct electricity

Question 31

What are the properties of bases?

Answer 31

* Bitter taste * Slippery feel * Conduct electricity

Question 32

What is the formula for hydrobromic acid?

Answer 32

HBr

Question 33

Name the acid: HCl

Answer 33

Hydrochloric acid

Question 34

What is the formula for chloric acid?

Answer 34

HClO₃

Question 35

Name the base: MgOH

Answer 35

Magnesium hydroxide

Question 36

What is the formula for copper(II) hydroxide?

Answer 36

Cu(OH)₂

Question 37

What does the pH scale measure?

Answer 37

The concentration of H⁺ ions in a solution

Question 38

What pH is considered neutral?

Answer 38

7

Question 39

How much more acidic is pH 2 than pH 6?

Answer 39

10,000 times more acidic

Question 40

What color does litmus paper turn in acid?

Answer 40

Red

Question 41

What color does litmus paper turn in base?

Answer 41

Blue

Question 42

What is a neutralization reaction?

Answer 42

Acid + Base → Salt + Water

Question 43

What is a salt in chemistry?

Answer 43

An ionic compound formed from the neutralization of an acid and base