How Do you make Salt Water? No not just the : mix water and salt

How to do stoichiometry?

Explain how to determine the average atomic mass from knowing the percent abundance of isotopes

Write the proper charges so that an alkali metal, a noble gas and a halogen have the same electron configurations.

Give the number of protons and the number of neutrons in the nucleus of each ofthe following isotopes: (a) Aluminum-25 (b) Technetium-95 (c) Tin-120 (d) Mercury-200

Which statement about atoms of elements in the same group of the periodic table is true? They have similar chemical properties and the same number of valence electrons. They have the same number of protons and the same mass.

what is way to find the numbers of liters in 8 kilometers? (A.) Add 5,000 and 3, because you are adding 3 kiloliters to 5,000 liters. (B.) Multiply 8 by 3,000, because each kiloliter has 3,000 liters. (C.

How much energy must be added to 2 mol H2O (g) to cause it to decompose into H2 and 02? KJ

How many moles are there in 270.4 g sample of NaOH

Suppose a 10.0 L reaction vessel is filled with 0.86 mol of BrOCl and 0.86 mol of BrCl. What can you say about the composition of the mixture in the vessel at equilibrium?

Formula for zinc nitrate