Exam 3

Question 1

What are the four types of chemical reactions?

Answer 1

Synthesis, decomposition, single displacement, double displacement.

Question 2

What defines a combustion reaction?

Answer 2

Something in the presence of O yields CO2 and H2O

Question 3

In single displacement reactions with carbon and hydrogen what is typically yielded?

Answer 3

An elemental substance and H2O or CO2

Question 4

What happens when chloride salts react with hydrogen?

Answer 4

The metal in the salt becomes a pure element and HCl is created.

Question 5

The chemical formula for Hydrochloric acid

Answer 5

HCl

Question 6

Acid properties

Answer 6

• -sour tast
• -dissolve metals
• -turn blue paper red

Question 7

Base properties

Answer 7

• -Bitter taste
• -slippery feel
• -turn red blue

Question 8

Acids

Answer 8

Formula has H as first element

Binary–> two elements
Oxyacid–>contain oxygen

Question 9

Naming binary acid

Answer 9

hydro prefix-non-metal name- ic ending

Question 10

Naming oxyacids

Answer 10

They contain oxyanions–> oxygen containing polyatomic ions. Alway H+ with a negative polyatomic ion.

If the polyatomic ion ends in -ate then it gets an -ic ending

If the polyatomic ion ends in -ite then it gets an ous ending.

Question 11

Bronsted Lowry definition of acids and bases

Answer 11

An acid is a proton donor

A base is a proton acceptor

Question 12

Conjugate pair

Answer 12

Any two substances related by the transfer of a proton

Question 13

amphoteric solution

Answer 13

Any solution that can be an acid or a base