Chemistry Test: Chemical Reactions

S

Solid

G

Gas

What group are in Gases?

Noble gases are elements in Group 18 of the periodic table that are colorless, odorless, and mostly nonreactive.

L

liquid

Aq

a solid dissolved in water

Combination Reaction

A + B ——— AB

Decomposition Reaction

AB ——— A + B

Combustion Reaction

A reaction where a substance combines with oxygen to produce energy, typically in the form of heat and light, resulting in products like carbon dioxide and water.

What elements need —— 2?

O2/ N2/ Br2 / F2 / CI2/ I2/ H2

Single Replacement Reaction

A reaction where an element replaces another element in a compound, typically represented as A + BC ——— AB + C.

The activity series

is a list of metals arranged in order of decreasing reactivity, used to predict the outcomes of single replacement reactions.

Double Replacement Reaction

A chemical reaction where two compounds react, and the anions and cations exchange places, typically represented as AB + CD ——— AD + CB.

What reaction do you use the activity series for?

Single Replacement Reaction

In a double and sing replacement reaction what comes first?

the positive ion

Solubility Guidelines for aqueous solutions are only what?

Double Replacement reactions

When both double reaction start with (aq) and end with (aq) what type of reaction occurs?

No reaction occurs.

(Aq)

break apart

When you have a compound, you look at where it is on the activity series. ex. ZnSO4

you would look above the Zn and see if there’s anything that is more reactive

When you have a element where do you look where on the activity series? ex. I2

You would look below the I2 and see if there’s anything that is less reactive or equally reactive.