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2 years ago

6

A teacher wants to perform a classroom demonstration that illustrates both chemical and physical changes. Which would be the bes

t demonstration that she could use?

1 answer:

Jlenok [28]2 years ago

5 0

when you crumble paper is still paper when you burn down paper you get ashes. that is want is call chemical and physical changes.

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2 years ago

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3 years ago

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2 years ago

A certain gas is present in a 15.0 LL cylinder at 2.0 atmatm pressure. If the pressure is increased to 4.0 atmatm the volume of

Helga [31]

Explanation:

According to Boyle's law, pressure of a gas is inversely proportional to its volume at constant temperature and moles.

Mathematically, P = $\frac{k}{V}$

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Also, formula for initial pressure and volume is as follows.

$P_{i} = \frac{k_{i}}{V_{i}}$

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3 years ago