What is the nuclear charge in an atom of boron

Why scientists use mass instead of weight for their measurements

Which statement best describes the kinetic molecular theory? The kinetic molecular theory relates the properties of a state of matter to the motion of its molecules.

Which statement best describes the nucleus of an aluminum atom?

How are chemical changes of matter related to the organization of the periodic table

How often does tides occur

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