All of the following are equal to Avogadro's number EXCEPT O 6.02 x 1023 moles of H2 gas
O 22.4 liters of H2 gas
6.02 x 1023 molecules of H2 gas
O 2.02 grams of H2 gas

Because electrons have negligible mass, to account for the mass of the isotope, there must be 16 neutrons, 16 neutrally charged, massive, fundamental particles present in the sulfur nucleus. and thus finally, if we have the 32s2− ion, there are 18 electrons, 16 protons, and 16 neutrons.

4- c, because all matter stays the same no matter what. it is still there. 5- b, because matter is known as mass. 6-c because, flammability is a chemical property. malleability is changing the shape of an object.