Ammonia Acid Worksheet With Answers Page 25
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49(ii)
Tick ( ) the statement which describes what happens to the energy during the
reaction.
Statement
Tick ( )
Energy is given out to the surroundings.
Energy is taken in from the surroundings.
No energy is given out to or taken from the
surroundings.
(1)
(Total 3 marks)
Q21.
The following steps show how to use a type of glue.
Step 1 Measure out equal amounts of the liquids from tubes A and B.
Step 2 Mix the liquids to make the glue.
Put a thin layer of the glue onto each of the surfaces to be joined.
Step 3 Assemble the pieces to be joined and then hold them together with tape.
Step 4 Leave the glue to set.
Page 25 of 49
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