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WorksheetsChemical Reactions
Total questions: 15
Worksheet time: 23mins
Type of chemical reaction with a general formula AB → A + B.
(a)
In an endothermic reaction, heat energy is .
(a)
True or False? During a chemical reaction a new substance (or substances) is produced.
(a)
Can be changed to balance a chemical equation
(a)
What does the arrow in a chemical equation mean?
(a)
True or False? When balancing chemical equations, the subscripts can be changed.
(a)
In the reaction between sodium (Na) and water (H2O), the gas evolved is:
(a)
A chemical reaction that releases energy in the form of heat is called:
(a)
What type of chemical reaction results in the formation of a single product?
(a)
It has a general formula CnH2n+2
(a)
What type of reaction is C2H4 + 3 O2 → 2 CO2 + 2 H2O?
(a)
Write an example of a synthesis reaction using the letters "A and B".
Write an example of a decomposition reaction using the letters "A and B"
Write the balanced chemical equation for the combustion reaction:
C2H6 + O2 → H2O + CO2
Write the balanced chemical equation for the reaction:
H2 + O2 → H2O
