So that you can learn while being safe. Wearing goggles, for eye protection when dealing with chemicals
Silicon must have 4 single covalent bond, every single bond has 2 electrons (one pair), so 4·2=8 electrons (octet).
Melting (solid to liquid)
Answer:
When water vapor in the air comes into contact with something cool, its molecules slow down and get closer together.
Explanation:
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