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2 years ago

3

Chemistry

1 answer:

Schach [20]2 years ago

8 0

Answer:

A. gases only

Explanation:

It is only in gases that the particles are very far apart so they can fill their contains.

There are four major states of matter which solid, liquid, gases and plasma.

Particles of a gas have very weak attractive forces between them.
They do not have fixed volume nor shape
They easily fill up any containers they are put into.
Gases are compressible and moves randomly in a straight line.
Liquids and solids do not fill up containers.
Liquids although have weak forces but they are better attracted than gases.
Solids have fixed and definite volume.

So, option A is the perfect answer.

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Carbon dioxide is a...

Marina86 [1]

Answer: Option B) Pure Substance &

Compound

Explanation:

Carbon dioxide is a compound because it is formed when one carbon atom and two oxygen atoms chemically combined together.

C(s) + O2(g) ---> CO2(g)

Also, CO2 is a pure substance because it is natural and cannot be broken down easily or separated by physical methods.

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2 years ago

A water bottle has a mass of 14.0g. Given a density of 1.38g/cm^3, what is the volume of the plastic used to make the water bott

Kipish [7]

Answer:

$\boxed{\sf Volume \ of \ plastic \ used = 10.14 \ cm^3}$

Given:

Mass = 14.0 g

Density ( $\rho$ ) = 1.38 g/cm³

To Find:

Volume (V)of the plastic used to make water bottle

Explanation:

Formula:

$\boxed{ \bold{Density \ (\rho) = \frac{Mass \ (m)}{Volume \ (V)}}}$

Substituting value of m & density in the formula:

$\sf \implies 1.38 = \frac{14.0}{V} \\ \\ \sf \implies V = \frac{14.0}{1.38} \\ \\ \sf \implies V = 10.14 \ cm^3$

$\therefore$

Volume of the plastic used to make water bottle = 10.14 cm³

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Explanation:

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