How many silicon atoms are in a 50.0 gram sample of silicon?

Which of the following is true of gas? A gas is not compressed because of the low intermolecular forces. a gas does not easily mix with other gases becasye of the high density of substances as gases.

which type of chemical reaction occurs faster at equilibrium the formation of production from reactants or that of reactants from products?

If a gas is moved from a large container to a small container but its temperature and number of moles remain the same, what would happen to the pressure of the gas?

If a neutral atom of beryllium has 4 protons and 5 neutrons, what is the mass number of the atom?

Which is the most polar bond? a. H-Se b. P-Br c. N-I d. No right answer.

Gymnast always perform on padded mats. how does the mats protect the gymnast

If you put Alka Seltzer in water and leave it for about one minute is the solution acidic, basic, or neutral?

The building block of all matter is a) water b) oxygen c) an atom d) an element

What is the oxidation state of an individual sulfur atom in BaSO4?

Which part of the atom takes up the most space