What is a chemical reaction?

Exploring Chemical Reactions

Quiz
•
Others
•
10th Grade
•
Hard
Seema Agarwal
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A chemical reaction is when substances are combined to form a mixture.
A chemical reaction is a process that only occurs in living organisms.
A chemical reaction is the mixing of two substances without any change.
A chemical reaction is a process where substances (reactants) are transformed into different substances (products) through the rearrangement of atoms.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Name the four main types of chemical reactions.
Synthesis, Decomposition, Single Replacement, Double Replacement
Redox Reaction
Neutralization
Combustion
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a synthesis reaction?
A synthesis reaction is when a single substance breaks down into two or more products.
A synthesis reaction involves the exchange of ions between two compounds.
A synthesis reaction is a chemical reaction where two or more substances combine to form a single product.
A synthesis reaction is a process where substances are mixed without any chemical change.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Describe a decomposition reaction.
A decomposition reaction is a chemical reaction where a compound breaks down into simpler substances.
A decomposition reaction is when two compounds combine to form a single product.
A decomposition reaction is a process where energy is absorbed without any change in the substance.
A decomposition reaction involves the rearrangement of atoms without breaking any bonds.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What occurs during a single replacement reaction?
One element replaces another in a compound.
A compound decomposes into its elements.
Two compounds exchange elements.
Elements combine to form a new compound.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain a double replacement reaction.
A double replacement reaction occurs when two gases react to form a liquid.
A double replacement reaction is when one compound decomposes into two simpler substances.
A double replacement reaction is a chemical reaction where two compounds exchange ions to form two new compounds.
A double replacement reaction involves the combination of two elements to form a single compound.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an example of a combustion reaction?
The combustion of methane: CH4 + 2O2 -> CO2 + 2H2O
The reaction of baking soda with vinegar: NaHCO3 + CH3COOH -> CO2 + H2O + NaCH3COO
The reaction of iron rusting: 4Fe + 3O2 -> 2Fe2O3
The reaction of photosynthesis: 6CO2 + 6H2O -> C6H12O6 + 6O2
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