What is the significance of writing the formula of Sodium chloride as NaCl, and Sodium sulfide as Na2S?

Which element could likely substitute for Si in a solid solution? carbon o phosphorous aluminum sulfur

A 3.00-g sample of an alloy (containing only Pb and Sn) was dissolved in nitric acid (HNO3). Sulfuric acid was added to this solution, which precipitated 2.93 g of PbSO4.

What happens when sodiumhydrogen carbonate reacts with nitric acid?

If you hold a jar over a lit candle, a dark residue forms on the inside of the jar. This residue is

An atom of 135I has a mass of 134.910023 amu. Calculate the binding energy in MeV per atom. Enter your answer with 4 significant figures and no units. Use the masses: mass of 1H atom = 1.007825 amu mass of a neutron = 1.008665 amu 1 amu = 931.5 Me

What is the metric unit for density

Is the compound CO ionic or covalent

What is the volume in ml of one pound of mercury?

How does the number of molecules in one mole of carbon dioxide compare with the number of molecules in one mole of water? A. There are four times as many molecules in one mole of carbon dioxide as there are in one mole of water. B.

Suppose you had 1.0 mol samples the following gases at STP. If the volume of each of the samples of gas was reduced to one tenth of its original size and the temperature remained the same, which gas would have the lowest pressure?