<span>it is called precipitant</span>
Answer:
<h2>5.Solder........</h2><h3>Hope it helps you!!</h3>
The phenomenon that naturally warms the earth's lower atmosphere and surface is called the greenhouse effect.
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Answer:
C. +5
Explanation:
Oxygen is always -2. And the sum of the oxidation numbers must be equal to the charge. So:
2x + 7(-2) = -4
2x - 14 = -4
2x = 10
x=5