25
g of calcium reacts with 42 g of chlorine to produce g of calcium chloride

If two atoms are bonded to a central atom with no lone pairs, how will they be arranged

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

How can a mixture of salt water be separated into salt and water