Chemical Reactions

In which two types of reactions do opposite chemical changes occur?

Which equation is a decomposition reaction?

How does an increase in reactant concentration affect the rate of reaction?

If a substance reacts with oxygen, the chemical reaction is most likely a

Chemists use activity series to determine whether which type of reaction will occur?

Which statement is usually true about the relationship between activation energy and reaction rates?

The equation below shows a reaction that produces calcium carbonate. Ca(OH)2(s) + CO2(g) mc032-1.jpg CaCO3(s) + H2O(l) Which describes a way to speed up the collisions between calcium hydroxide and carbon dioxide molecules to produce calcium carbonate faster?

Which is true about reaction rates?

Propane burns in air to produce carbon dioxide and water. What is this type of chemical reaction called?

A double replacement reaction can be best described as a reaction in which

Sodium chloride reacts with copper sulfate to produce sodium sulfate and copper chloride. 2NaCl(aq)+CuSO4(aq)--->Na2SO4(aq)+Cu2(s) This equation represents a

Which type of chemical reaction occurs in C6H12 + 9O2---> 6CO2 + 6H2O?

Which is a characteristic of a decomposition reaction?

A chemical reaction has two elements as reactants. Which type of reaction might occur?

A chemical reaction in which one element replaces another element in a compound can be categorized as a

In which type of chemical reaction do two or more substances combine to form one substance?

Which type of chemical reaction occurs in 2KClO3--->2KCl + 3O2?

Propane burns in air to produce carbon dioxide and water. What is this type of chemical reaction called?

A double replacement reaction can be best described as a reaction in which

Which products would form if chlorine gas was bubbled through a solution of sodium bromide?

The production of water proceeds according to the following equation. 2H2(g) + O2(g)--->2H2O(g) Which describes a way to speed up the collisions between hydrogen and oxygen molecules to produce more water?

Which topic is commonly used to explain activation energy and how chemical reactions happen?

Consider the reaction below. C2H4(g) + H2(g)--->C2H6(g) Which change would likely cause the greatest increase in the rate of the reaction?

Ben observes how quickly some dry wood is burning in a campfire. Which term best relates to Ben's observation?

An increase in temperature affects the reaction rate by

Which applies to the collision theory?

A change in which factor will affect the rate of reaction only when gases are involved?

Which best explains why sawdust burns more quickly than a block of wood of equal mass under the same conditions?

Which topic is commonly used to explain activation energy and how chemical reactions happen?

Consider the reaction below. Mg(s) + 2HCl(aq)--->H2(g) + MgCl2(aq) What is the most likely effect of an increase in pressure on this reaction?

Which applies to the collision theory?

Which will cause an increase in the reaction rate between molecules?

A solid reactant is placed into a beaker of a warm water. The liquid vigorously bubbles as the solid dissolves into the solution. What will most likely happen if the temperature of the liquid is slightly reduced?

An increase in temperature affects the reaction rate by