True.
For example: Sodium oxide and Nitric acid; both compounds contain oxygen.
Explanation:
temperature changes affect seawater density as water cools its density increases. As water cools H2O molecules pack more closely together because the molecules are vibrating less at low temperatures and take up less volume. The same number of water molecules in smaller volume results higher density
Precipitation occurs when the product of the ion concentration exceeds the Ksp.
