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AssignmentMultiple Select

Scientific Notation and Significant Figures

Question 1 • CR SS Chemistry S2 2018/19 2026

What happens to the total mass of the chemicals involved in the reaction as the reaction proceeds?

Answer
A
The mass decreases. After the reaction, the solution and gas have less mass than the baking soda and vinegar.
B
The mass increases. After the reaction, the solution and gas have more mass than the baking soda and vinegar.
C
The mass is the same. After the reaction, the solution and gas have the same mass as the baking soda and vinegar.
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