Chemistry Module 6 Test 2024 with Complete & Verified Solutions

Chemistry Module 6 Test 2024 with Complete & Verified Solutions What is a stoichiometric coefficient? - ANS ️️ The number to the left of a substance in a chemical equation. Fill in the blanks in the equation: 2HF + CaO2H2 --> 2H2O + CaF2 2 moles of HF react with _______ moles of CaO2H2 to make _______ moles of H2O and _____ moles of CaF2. - ANS ️️ 1 mole of Ca2H2 to make 2 moles of H2O and 1 mole of CaF2. The chemical reaction in problem #2 is run with HF as the limiting reactant. What would happen to the amount of H2O produced in the reaction if the number (amount) of moles of Ca O2H2 were doubled but the number of moles of JF were kept the same? - ANS ️️ Nothing would happen. State Gay-Lussac's Law and its limitations. (When it can be used to determine the values of the equations)? - ANS ️️ the stoichiometric coefficients can be used to relate the volumes of gases in a chemical equation, but it only works for gases. An unknown compound is decomposed into 6.9g of Na, 3.1g of P and 6.4g of oxygen. What is its empirical formula? - ANS ️️ 6.9 gNa/ * 1 mole Na/ = 0.30 moles Na 1 23.0 gNa 3.1 gP/ * 1 mole P/ = 0.10 moles P