What is the 30th element on the periodic table

Use each of the following terms in the same sentence: temperature, pressure, volume, and charles law

How many protons neutrons and electrons do I need to add to get the element MN

The total pressure of a gas mixture in a particular container is 43.2 atm. The Flask contains 2.87 mol of argon, 7.40 mol of chlorine and 15.2 mol of xenon. Determine the partial pressure of each gas.

How many aluminum atoms are in 2.20 g of aluminum?

Use the particle theory of matter to explain why icing sugar dissolves more rapidly than granular sugar

How many grams of the excess reactant remain assuming the reaction goes to completion and that you start with 15.5g of na2s and 12.1g cuso4?

Which elements can be found in the sun? a. hydrogen and oxygen b. helium and oxygen c. hydrogen and helium d. hydrogen and nitrogen?

A sample of hydrogen gas at 2.0 atmospheres and 273 k occupies a volume of 5.0 liters. the gas sample is completely transferred to a 10.0-liter sealed, rigid container.

To make sure that the white powder was all sodium chloride and not mixed with sodium hydrogen carbonate, would you need to add a little less or a little more hydrochloric acid to the reaction?

A 10.0 gram sample of h2o at 23.0c absorbs 209 joules of heat. what is the final temperature