Explanation: Ca generally loses two electrons from its outer shell to form a Ca2+ ion.
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C.) Surface Tension, Because water can hold a certain amount of pressure/weight before the object sinks
The answer is B red blood cells. The other three are part of our immune system to defense for infectious disease. While red blood cells are responsible for transport oxygen from lung to other place in our body.
The attractive force that occurs between the sun and the earth is called:
Gravity
This force works to keep everything on the planet grounded.
Kool-Aid itself is actually a mixture of sugar, water, dye, and flavoring. So when we add our sugar crystals, the water molecules and sugar molecules in the Kool-Aid will come in contact with the surface of our pure sugar crystals.
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