Terms & Background
Signs of Reactions
Atoms vs. Molecules vs. Compounds
Balancing Equations
Types of Reactions
100

A chemical reaction occurs when one or more substances (_______________) rearrange into new substances (_______________) using what symbol?


reactants, products, arrow


100

The description 'two or more substances combined to make one' defines which type of reaction? What is the equation?

Synthesis, A + B --> AB

100

Write ‘A’ for every atom, ‘M’ for every molecule, and ‘C’ for every compound: H2, Be, NaCl, He2, Mg, He, MgCl

M, A, C, M, A, A, C

100

Finish balancing this equation: 

H2 + O2 --> 2 H2O

2 H2 + O2 --> 2 H2O

100

What type of reaction is this: 

Sc + O --> ScO

NHe --> N + He

H + F --> HF

synthesis, decomposition, synthesis

200

Who is "The Father of Modern Chemistry?" What type of book did he publish and when?

Antoine Lavoisier, first chemistry book, 1789

200

What is the description of a single-replacement type of reaction? What is the equation?

One element replaces another in a compound, A + BC --> AC + B

200

Write ‘A’ for every atom, ‘M’ for every molecule, and ‘C’ for every compound: CH4, Li, CO2, S8, H, Li, Be

C, A, C, M, A, A, A

200

Finish balancing this equation: 

NH4 --> N2 + H

2 NH4 --> N2 + 8 H

200

What type of reaction are these: 

NH --> N + H

ZnCu + HHe --> HCu + ZnHe

H + O --> HO

decomposition, double replacement, synthesis

300

What is the Law of Conservation of Mass?

Matter cannot be created nor destroyed 

300

What is the description of a decomposition type of reaction? What is the equation?

One substance breaks down into smaller ones, AB -- A + B

300

Write ‘A’ for every atom, ‘M’ for every molecule, and ‘C’ for every compound: C, Ne, KI, H2O2, O, Mn, Cu

A, A, C, C, A, A, A

300

Finish balancing this equation: 

Fe + O2 --> Fe2O6

2 Fe + 3 O2 --> Fe2O6

300

What type of reaction are these: 

NC --> N + C

O + HC --> OC + H

Fe + O --> FeO

NaO + HCl --> HO + NaCl

decomposition, single-replcament, synthesis, double-replacement 


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