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Juliette [100K]
3 years ago
10

Which of the following is an example of non-matter?

Chemistry
2 answers:
Naddik [55]3 years ago
8 0
A: Light












it has to be 20 characters
Lera25 [3.4K]3 years ago
4 0

A!

stay safe and have a great day<8

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True or false. The center of gravity and center of mass of an object need to be in the same spot?
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True................

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Hello!

To find the number of atoms in 2.822 moles of nickel, we need to multiply it by Avogadro's number. Avogadro's number is 6.02 x 10^23 atoms.

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Therefore, there are about 1.70 x 10^24 atoms (according to the number of significant figures) in 2.822 moles of nickel.

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3 years ago
A square chunk of plastic has a length of 5 cm, width of 5 cm and height of 5 cm. It has a mass of 200 g. What is it’s density
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In this case it is 5cm*5cm*5cm = 125cm^3

Since we know that 1cm^3 ~ 1mL we can convert the volume to mL as so:

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2 years ago
How do scientists use radioactive decay to date fossils and artifacts
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