Ammonium chloride contains oppositely charged ions (a) State the formula of each ion.

i. Positive ion
ii. Negative ion

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

What is the percentage of hydrogen in nitrogen trihydride

In general metals get as you move from left to right across the periodic table.