What is the most abundant element and has only one letter in its chemical symbol? A)nitrogen
B)hydrogen
C)O oxygen

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.

Determine the length of the object shown. 97.8 mm 97.80 mm 97 mm 98 mm

Which factor is likely to impact the possible number of compounds? presence of unlimited number of elements in the periodic table the inability of atoms to align perfectly with other atoms the ability of all elements to react with every other element all elements being equally reactive