Acalcium atom has 20 electrons. an oxygen atom has 8 electrons. using the electronic structures of calcium and oxygen explain why calcium oxide has the formula cao

Perform the following mathematical operations and report the answer to the appropriate number of significant figures 5.87998 + 3.100

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?