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a_sh-v [17]
3 years ago
9

A solid mass of 25g is added to a solution with the mass of 60g. The final mass of the solution is 75g. Explain why the mass of

the products does not equal combined reactant mass
Chemistry
1 answer:
Ann [662]3 years ago
4 0

It is not equal because it dose not obey the conservation of mass. 60+25= 85 not 75.

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Explanation:

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4 0
3 years ago
You have a mass of 54 kg and are sitting on a stool. The normal force the stool applies on you is ...
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Answer:

529.2 N

Explanation:

As we have studied the first law of motion, which states that every action has some reaction, equal in magnitude but having an opposite direction.

The force that is acting on the student will be due to gravitational force, that is equal to his weight.

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This is because the student is sitting in a constant state and all the weight is exerted on the stool.

Note: This answer is very generic supposing that all the weight of the student is on stool. But, if we suppose that student's legs are on floor so it means the force of gravity acting on the stool has become less because student's mass on stool is less. So the answer would be a force somehow less than 529.2 N.  However, since the question asked normal force, it would be weight of student in general terms.

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7 0
2 years ago
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Mashutka [201]

Answer:

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Explanation:

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