Chemical Equations and Reactions

What type of decomposition reaction results in the formation of a metal oxide and carbon dioxide?
1. decomposition of a metal carbonate
2. decomposition of a metal hydroxide
3. decomposition of a metal chlorate
4. decomposition of an acid
What type of decomposition reaction results in the formation fo a metal oxide and water?
1. decomposition of a metal hydroxide
2. decomposition of a metal carbonate
3. decomposition of a metal chlorate
4. decomposition of an acid
What type of decomposition reaction results in the formation fo a metal chloride and oxygen?
1. decomposition of a metal hydroxide
2. decomposition of a metal carbonate
3. decomposition of a metal chlorate
4. decomposition of an acid
What are used to indicate the molar quantities of reactants and products in an equation?
1. subscripts
2. superscripts
3. coefficients
4. molar masses
In order to properly balance an equation, what are the only numbers that are added/changed?
1. subscripts
2. superscripts
3. coefficients
4. molar masses
Which of the following can replace Co in a single replacement reaction?
1. Mg
2. Pb
3. neither Mg nor Pb
4. both Mg and Pb
Which of the following can replace Ag in a single replacement reaction?
1. Mg
2. Pb
3. neither Mg nor Pb
4. both Mg and Pb
If we add Ni to water, will a reaction occur?
1. yes
2. no
3. only if the water is steam
4. only if the Ni is liquid
Which of the following is NOT a diatomic molecule?
1. hydrogen
2. oxygen
3. boron
4. nitrogen
Which of the following is used to indicate a reactant or porduct in an aqueous solution (dissolved in water)?
1. (aq)
2. (l)
3. (a)
4. (d)
You look at a chemical equation and notice that a chemical formula is written on top of the arrow. What does the formula indicate?
1. a catalyst that is used to alter the rate of the reaction
2. a by-product of the reaction
3. a secondary reactant
4. a primary product
You look at a chemical equation and notice that a triangle is written on top of the arrow. What does the triangle indicate?
1. the reactants are heated
2. three reactants are required
3. a secondary path in the reaction
4. electricity is required for the reaction
In a synthesis reaction, a metal combines with oxygen to form
1. water
2. a metal oxide
3. a nonmetal oxide
4. an organic compound
In a synthesis reaction, a metal reacts with a halogen to form
1. a salt
2. an organic compound
3. an oxide
4. a nonmetallic sulfide
In a synthesis reaction, an oxide combines with water to form
1. a metallic oxide
2. a hydroxide
3. carbon dioxide
4. oxygen and carbon dioxide
The decomposition of a substance by an electric current is called
1. electrolysis
2. electrophoresis
3. electrical synthesis
4. electrocution
Acids tend to decompose into
1. nonmetal oxides and water
2. metal oxides and water
3. nonmetal hydroxides
4. hydrogen and oxygen
When a metal and water react, what is one of the products?
1. hydrogen gas
2. oxygen gas
3. a nonmetallic oxide
4. a salt
When a metal reacts with an acid, what is one of the products?
1. a salt
2. oxygen gas
3. water
4. a halogen
What can replace Cl in a single replacement reaction?
1. Br
2. F
3. I
4. Na
Which of the following is NOT an indication of a chemical reaction?
1. change in color
2. evolution of heat and light
3. production of a gas
4. formation of a precipitate
A substance that accelerates a chemical reaction but can be recovered unchanged is known as a
1. catalyst
2. precipitate
3. product
4. reactant

Chemical Equations and Reactions

Multiple-Choice ExerciseContent © 2006 Melanie Cecere; Authors of Activity: Melanie Cecere & Tami Maloney; All rights reserved. No commercial, for-profit use of this material is allowed. E-mail comments and questions to Tami Maloney.

What type of decomposition reaction results in the formation of a metal oxide and carbon dioxide?

What type of decomposition reaction results in the formation fo a metal oxide and water?

What type of decomposition reaction results in the formation fo a metal chloride and oxygen?

What are used to indicate the molar quantities of reactants and products in an equation?

In order to properly balance an equation, what are the only numbers that are added/changed?

Which of the following can replace Co in a single replacement reaction?

Which of the following can replace Ag in a single replacement reaction?

If we add Ni to water, will a reaction occur?

Which of the following is NOT a diatomic molecule?

Which of the following is used to indicate a reactant or porduct in an aqueous solution (dissolved in water)?

You look at a chemical equation and notice that a chemical formula is written on top of the arrow. What does the formula indicate?

You look at a chemical equation and notice that a triangle is written on top of the arrow. What does the triangle indicate?

In a synthesis reaction, a metal combines with oxygen to form

In a synthesis reaction, a metal reacts with a halogen to form

In a synthesis reaction, an oxide combines with water to form

The decomposition of a substance by an electric current is called

Acids tend to decompose into

When a metal and water react, what is one of the products?

When a metal reacts with an acid, what is one of the products?

What can replace Cl in a single replacement reaction?

Which of the following is NOT an indication of a chemical reaction?

A substance that accelerates a chemical reaction but can be recovered unchanged is known as a

Multiple-Choice Exercise
Content © 2006 Melanie Cecere; Authors of Activity: Melanie Cecere & Tami Maloney; All rights reserved. No commercial, for-profit use of this material is allowed. E-mail comments and questions to Tami Maloney.