Write a summary of the portion of the "Gettysburg Address" by Abraham Lincoln. What does the chemical formula CaCl2 show about the compound it represents?

It is made up of one element.
It is made up of two elements.
It is made up of three elements.
It is made up of four elements.

Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2al(s)+3cl2(g)→2alcl3(s) what is the maximum mass of aluminum chloride that can be formed when reacting 32.0 g of aluminum with 37.0 g of chlorine? express your answer to three significant figures and include the appropriate units.

If you want to create an electrical current, which situation would produce a solution capable of this

The table lists pressure and volume values for a particular gas. which is the best estimate for the value of v at p = 7.0 × 103 pascals?