Water (h2o) forms when hydrogen gas (h2) and oxygen gas (o2) react according to the equation below: 2h2 +o2 → 2h2o what mass of water forms when 1.45 × 10-3 g o2 react completely? (molar mass of o2 = 32.00 g/mol; molar mass of h2o = 18.02 g/mol)

Which statement best describes how atoms combine to form sodium chloride (nacl)? a. a positively charged sodium ion and a positively charged chlorine ion form an covalent bond. b. a positively charged sodium ion and a negatively charged chlorine ion form an covalent bond. c. a positively charged sodium ion and a positively charged chlorine ion form an ionic bond. d. a positively charged sodium ion and a negatively charged chlorine ion form an ionic bond.

Order the following from smallest to largest atom, electron, quark, proton, neutron, molecule, nucleus

Compare the equilibrium constants for the systems shown in the table. which favors products the most? which favors products the least? rank these systems in order from most to least in terms of favoring products rather than reactants. d > b > a > c c > a > b > d b > c > d > a a > d > c > b