What is the chemical formula of sodium sulfate? (1) Na2SO4 (2) Na2SO3 (3) NaSO4 (4) NaSO3 Answer and Explanation: Too write a...

Which molecular formula is also an empirical formula? Answer and Explanation: An empirical formula is a formula where the subscripts of...

Compared to a potassium atom, a potassium ion has (1) a smaller radius (2) a larger radius (3) fewer protons (4) more protons

Which substance has nonpolar covalent bonds? Answer and Explanation: Covalent bonds are formed between two or more nonmetals (nonmetals...

What is the charge of the nucleus of a copper atom? (1) +1 (2) +2 (3) +29 (4) +64 Answer and explanation: What particles are inside the...

Which atom has the greatest attraction for the electrons in a chemical bond? (1) hydrogen (2) oxygen (3) silicon (4) sulfur

Which two elements have the most similar chemical properties? (1) beryllium and magnesium (2) hydrogen and helium (3) phosphorus and sulfur