Answer:
A compound
Explanation:
A compound is a substance formed when two or more elements are chemically joined
If both particles have the SAME electrical charge, then they repel.
If they have DIFFERENT electrical charge, then they attract.
Protons have + charge .
Electrons have - charge .
So two protons (A) or two electrons (D) push apart.
One proton and one electron (C) pull together.
The correct answer is letter A. 6 millimeters. <span>If an object 18 millimeters high is placed 12 millimeters from a diverging lens and the image is formed 4 millimeters in front of the lens, the height of the image is 6 millimeters.
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Solution:
18 / x = 12 / 4
12x = 72
x = 6mm
D. The molecules in water are constantly moving.
They are able to do this because they move around to take whatever shape of the container.
