2 years ago

1. Energy appears in two forms. What are they?

1 answer:

5 0

Number 1 is C number 2 is B and number 3 is also B

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shutvik [7]

Answer:

I really dont know i just guessed :(

Explanation:

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2 years ago

kati45 [8]

The answers are:

1. D
2. B if it is a check all that are true it is b & d

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2 years ago

shusha [124]

It looks all correct to me, great job!

6 0

2 years ago

Sergio [31]

Answer:

$d=4.75\times 10^{-9}\ \text{inches}$

Explanation:

Given that,

The distance between the centers of the two oxygen atoms in an oxygen molecule is $1.21\times 10^{-8}\ cm$ .

We need to convert this distance in inches.

We know that,

1 cm = 0.393 inches

We can solve it as follows :

$1.21\times 10^{-8}\ cm=0.393\times 1.21\times 10^{-8}\\\\=4.75\times 10^{-9}\ \text{inches}$

So, the distance between the centers of the two oxygen atoms is $4.75\times 10^{-9}\ \text{inches}$ .

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2 years ago

Y_Kistochka [10]

a negatively charged ion

8 0

3 years ago