Chemical Reactions
Quiz
•
Chemistry
•
10th Grade
•
Easy
SURESH Kumar
Used 1+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a decomposition reaction?
A decomposition reaction is a type of chemical reaction where a compound remains unchanged.
A decomposition reaction is a type of chemical reaction where two compounds combine to form a single substance.
A decomposition reaction is a type of chemical reaction where energy is released.
A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler substances.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Provide an example of a single replacement reaction.
2Na(s) + Cl2(g) -> 2NaCl(s)
Zn(s) + 2HCl(aq) -> ZnCl2(aq) + H2(g)
Fe(s) + CuSO4(aq) -> FeSO4(aq) + Cu(s)
2H2(g) + O2(g) -> 2H2O(l)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the process of a double replacement reaction.
In a double replacement reaction, only one new compound is formed.
Double replacement reactions involve the exchange of electrons between two ionic compounds.
The process of a double replacement reaction results in the formation of a gas.
The process of a double replacement reaction involves the exchange of ions between two ionic compounds to form two new compounds.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are combustion reactions and what do they usually involve?
Combustion reactions involve mixing two liquids, resulting in a solid product.
Combustion reactions typically require no heat to occur.
Combustion reactions involve a fuel and an oxidizing agent reacting to produce heat, light, and new chemical products.
Combustion reactions usually involve the production of water and carbon dioxide.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Define redox reactions and give an example.
Redox reactions involve the transfer of energy between reactants. An example is the reaction between water and carbon dioxide to form glucose.
Redox reactions involve the transfer of electrons between reactants. An example is the reaction between iron and oxygen to form rust.
Redox reactions involve the transfer of protons between reactants. An example is the reaction between sodium and chlorine to form table salt.
Redox reactions involve the transfer of neutrons between reactants. An example is the reaction between copper and sulfur to form copper sulfate.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a decomposition reaction, what happens to the reactant?
The reactant evaporates completely
The reactant remains unchanged
The reactant combines with another substance
The reactant breaks down into two or more simpler substances.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you identify a single replacement reaction?
Identify a double replacement reaction instead.
Look for a single element reacting with a compound to form a new compound and a different element.
Look for two compounds reacting to form two new compounds.
Observe a compound breaking down into two different elements.
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