2 years ago

1. Differentiate Physical and chemical changes of matter?

1 answer:

4 0

In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed.

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Answer:

The baking soda

Explanation:

This is the more reactive part of the experiment. The more baking soda there is (compared to the vinegar), the stronger the reaction.

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Humans knowingly create environmental disasters?

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An idea is being proposed. The steps that led to the idea are listed below:

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No because opinion and social values may lead to bias

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3 years ago

How heavy is one atom of hydrogen

Harman [31]

Hello!

the atomic mass of one atom of hydrogen is equal to 1.00784 in atomic mass units

one atomic mass unit is equal to 3.6609e-27 pounds

which means one atom of hydrogen is equal to 3.9478732e-27 pounds

I hope this helps, and have a nice day!

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3 years ago