Radtation

Question 1

The process spontaneously gives off heat and gets

hot.

Answer 1

exothermic

Question 2

spontaneously absorbs heat

and gets cold.

Answer 2

endothermic

Question 3

a solid that’s formed when two

liquids are mixed together.

Answer 3

precipitate

Question 4

The stuff at the left (CH4 and O2) of the chemical equation.

Answer 4

reactants/reagent

Question 5

The stuff at the right (CO2 and H2O) of the chemical equation.

Answer 5

Products

Question 6

This is where you put numbers in
front of each of the compound formulas so that the number of atoms of each element is the same
on both sides of the arrow.

Answer 6

coefficients

Question 7

This reaction occurs when two chemicals combine to form one larger chemical

Answer 7

Synthesis Reactions

Question 8

This reaction occurs when one chemical breaks up to form two or more smaller chemicals
(basically, they’re the exact opposite of a synthesis reaction).

Answer 8

Decomposition Reactions

Question 9

If you’ve got something organic (i.e. something that contains both carbon and hydrogen atoms) reacting
with oxygen to form carbon dioxide gas and water vapour (plus lots of energy).

Answer 9

Combustion Reactions

Question 10

These reactions occur when the atoms of a pure element replace those of an element in a
chemical compound. The pure element is usually, but not always, a metal.

Answer 10

Single Displacement Reactions

Question 11

If the cations of two ionic compounds switch places, you’re looking at a double displacement reaction.
When lead (II) nitrate reacts with potassium iodide to form lead (II) iodide8 and potassium nitrate, you’ve
got yourself a

Answer 11

Double Displacement Reactions (precipitation reaction)

Question 12

These reactions (also known as “neutralization reactions”) are just double displacement reactions in
which water is formed.

Answer 12

Acid-Base Reactions