Balancing Chemical Equations

Types of Reactions

100

This type of reaction is where a hydrocarbon burns or explodes in the presence of oxygen, creating as a product carbon dioxide and water vapor.

What is combustion?

200

This type of reaction is where one compound breaks down into two or more simpler elements or compounds. 

What is decomposition?

300

This type of rxn is where two elements chemically combine to form one new compound. 

What is synthesis?

400

This type of reaction is where one metal swaps his nonmetal with another metal's nonmetal. 

What is double replacement?

500

This type of rxn is where a more reactive element replaces a less reactive element in a compound. In analogy, it is where one element steals another element's girl, sending him home alone.

What is single replacement?

Miscellaneous

100

What college did Mrs. Lemm graduate from?

Southern Illinois University Edwardsville (SIUE)

200

How many oxygen atoms are in 3Al(NO₃)₃

27

300

Which month has 28 days?

all of them

400

What is the formula for Aluminum oxide? What is the formula for Tin (IV) phosphate?

Al₂O₃ Sn(PO₄)₂

500

Write the word equation for this reaction:

2NaF + CuS --> CuF₂ + Na₂S

sodium fluoride reacts with copper (II) sulfide to create copper (II) fluoride and sodium sulfide

Reaction Vocabulary

100

This is found on the left side of the yields sign. In other words, what goes in to the reaction.

What is the reactant?

200

If an equation is balanced properly, both sides must have the same number of ______.

A. Atoms B. Coefficients C. Molecules D. Compounds

A. Atoms

300

This is found on the right side of the yields arrow. It is the end result of a chemical reaction.

What is the product?

400

The only numbers you can change when attempting to balance an equation is the _________.

coefficients

500

What is the name of an unbalanced chemical equation?

skeleton or skeletal equation

Balancing Equations

100

__C₇H₁₄ →  __C₇H₈ + __H₂

1,1,3

200

__sodium bicarbonate →  __carbon dioxide + __water + __ sodium carbonate

2, 1, 1, 1

2NaHCO₃-->CO₂+H₂O+Na₂CO₃

300

carbon tetrafluoride reacts with oxygen to form carbon dioxide and fluorine gas

1,1,1,2

CF₄+O₂ -->CO₂+2F₂

400

__C₂H₃F +__O₂ → __CO + __HF + __H₂O 

Double Points!

2,3,4,2,2

500

__N₂H₄ + __H₂O₂ →  __N₂ + __H₂O

1,2, 1, 4

Predicting Products

100

calcium oxide decomposes

Ca + O₂

200

AgBr + Mg → 

MgBr₂ + Ag

300

magnesium chloride reacts with sodium sulfide

MgS + NaCl

400

aluminum combines with fluorine

AlF₃

500

C₅H₇O + O₂ → 

CO₂ + H₂O