WorksheetsChemical Reactions Quiz
Total questions: 27
Worksheet time: 29mins
What is the process by which energy, such as heat, is spread out or dispersed, often reducing the intensity of the energy?
Oxidation Reaction
Combustion
Dissipate
Endothermic Reaction
Which type of reaction releases energy in the form of heat to its surroundings?
Dissipate
Endothermic Reaction
Oxidation Reaction
Exothermic Reaction
What is an example of an exothermic reaction?
Neutralization Reaction
Endothermic Reaction
Photosynthesis
Combustion
What is the result of a substance combining with oxygen in a combustion reaction?
Electricity
Heat
Sound
Light
In an exothermic reaction, what happens to the energy of the surroundings?
Disappears
Decreases
Stays the same
Increases
What is the reaction between iron and oxygen known as?
Rusting
Combustion
Oxidation
Neutralization
What is the purpose of painting iron to protect it from rusting?
Prevent rusting
Increase rusting
Change the color of rust
Speed up rusting
Which type of reaction absorbs energy from its surroundings?
Dissipate
Exothermic Reaction
Oxidation Reaction
Endothermic Reaction
What is the result of an endothermic reaction on the surrounding area?
Cooler
Warmer
Depends on the reaction
No change
What is the product formed when iron reacts with oxygen and water?
Water Vapor
Iron Oxide (Rust)
Carbon Dioxide
Hydrogen Peroxide
What is the purpose of galvanizing iron to protect it from rusting?
Speed up rusting
Increase rusting
Prevent rusting
Change the color of rust
Which type of reaction requires energy input to occur?
Endothermic Reaction
Exothermic Reaction
Oxidation Reaction
Dissipate
What is the result of a substance combining with oxygen in an oxidation reaction?
Electricity
Heat
Sound
Light
What is the impact of rusting on iron?
Strengthens it
Causes it to melt
Changes its properties
No impact
if more heat energy is released in making bonds in the products than is taken in when breaking bonds in the reactants
Exothermic
Endothermic
Exotermic
Endotermic
if less heat energy is released in making bonds in the products than is taken in when breaking bonds in the reactants
Endothermic
Exotermic
Exothermic
Entrothermic
Is this diagram endothermic or exothermic
Endothermic
Exotermic
Exothermic
Endote
Which gas is produced when metals react with an acid?
Oxygen
Carbon dioxide
Hydrogen
Helium
Which element is common to all acids?
Hydrogen
Oxygen
Carbon dioxide
Helium
Reaction of metals and acids is a ______________ reaction.
Physical
Chemical
Biological
Thermodynamic
When a substance burns, the new substance formed is a/an __________
acid
alkali
carbonate
oxide
When a substance burns, it is in reaction with _____________
Oxygen
Nitrogen
Hydrogen
Carbon dioxide
What are the two non-metals that are included in the reactivity series of metals?
Hydrogen and iron
Oxygen and lead
Tin and carbon
Carbon and hydrogen
