What is the lightest element?

Why is hydrogen a non-metal?

Which chemical equation best illustrates the Law of Conservation of Mass? (My answer: D) 2H2O yields H2 + O2 CH4 + 3O2 yields CO2 + 2H2O Al4C3 + 3H2O yields CH4 + 4Al (OH) 3 Zn + 2HCl yields ZnCl2 + H2

Which sample of nitrogen gas at STP occupies the largest volume? (A) 14 liters (B) 14 moles (C) 14 grams (D) 1.4 * 10^{24} molecules (E) 4.2 * 10^{24} molecules

Identify items in your life that are made of each type of element: metal, nonmetal, and metalloid. For each item, explain why the properties of that type of element are necessary for the function of that item

Along the right side of the page there are links to various data tables. You receive a fax with a data table labeled "U. S. Laboratory Confirmed Influenza-Associated Hospitalizations and Deaths.

How many atoms are there in 0.619 moles of sulfur?

The density of a gaseous compound is 1.623 g/l at stp determine the molar mass of the compound

The reaction that joins thousands of small, identical molecules to form one very long molecule is called (1) esterification (3) polymerization (2) fermentation (4) substitution

The scientists who developed atomic theory

A sulfur atom has a mass number of 31, 16 protons, 15 protons, and 18 electrons. What is the charge of this atom