Question

The students X and Y report the mass of the same substance as 7.0 g and 7.00 g respectively. Which of the following statement is correct?

Answer 1

Answer:

The test tube with the catalyst will be the test tube that stops bubbling first.

Catalysts act by reducing the activation energy of a given reaction, which means that the reaction is able to proceed more easily. This reduction in activation energy is achieved by providing the reaction an alternate pathway to follow.

When the reaction is carried out more easily, it also occurs more rapidly and finishes in less time. Therefore, the bubbling will stop earlier than without a catalyst.

Explanation:

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Answer 2

Answer:

Both are correct because they are both equal.

Explanation:

7.0 = 7.00