Chapter 9 Chemical Reactions

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Chemistry

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9th - 12th Grade

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Practice Problem

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Easy

Mindy Creel

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50 Slides • 10 Questions

Multiple Choice

How do skeleton equations and chemical equations differ?

Skeleton equations represent the same information as chemical equations.

Skeleton equations include coefficients for reactants and products.

Chemical equations are simpler than skeleton equations.

Skeleton equations differ from chemical equations in that they do not show the relative amounts of reactants and products.

Multiple Choice

How are chemical equations balanced?

By removing atoms from one side of the equation.

By changing the chemical symbols of the elements involved.

By adding more reactants without changing the products.

Chemical equations are balanced by adjusting coefficients to equalize the number of atoms for each element on both sides.

Multiple Choice

What are combustion reactions?

Combustion reactions are rapid reactions between a fuel and oxygen that produce heat and light.

Combustion reactions occur only in the absence of oxygen.

Combustion reactions are slow processes that do not produce heat.

Combustion reactions involve only solid fuels without any gases.

Multiple Choice

What are synthesis reactions?

Synthesis reactions occur when a single substance is heated to produce energy.

Synthesis reactions are chemical reactions where two or more substances combine to form a single product.

Synthesis reactions involve the breakdown of a single substance into multiple products.

Synthesis reactions are only physical changes without any chemical transformation.

Multiple Choice

What are decomposition reactions?

Decomposition reactions create new compounds from simpler substances.

Decomposition reactions involve the combination of two or more elements.

Decomposition reactions involve the breakdown of a compound into simpler products.

Decomposition reactions are a type of synthesis reaction.

Multiple Choice

What are single-replacement reactions?

Single-replacement reactions involve two elements combining to form a new compound.

Single-replacement reactions are reactions where two compounds exchange elements.

Single-replacement reactions occur when elements are added to a solution without any change in composition.

Single-replacement reactions are chemical reactions where one element replaces another in a compound.

Multiple Choice

What are double replacement reactions?

Double replacement reactions are chemical reactions where two compounds exchange ions to form two new compounds.

Double replacement reactions involve the formation of a single new compound.

Double replacement reactions are only found in organic chemistry.

Double replacement reactions do not involve any ion exchange.

Multiple Choice

What does aqueous mean?

Aqueous is a term used for gaseous substances.

Aqueous refers to a solid state of matter.

Aqueous means relating to oil or fat.

Aqueous means relating to, or containing water.

Multiple Choice

What is eliminated from complete ionic equations to form a net ionic equation?

Spectator ions

Catalysts

Products

Reactants

Multiple Select

Reactions in aqueous solutions may form which of the following? Select all that apply.

liquids

Sorry I wasn't listening

solids

gases

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