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Regents Chemistry the mole and stoichiometry quiz quiz

13questions. Pick an answer and you'll see why right away.

  1. How many representative particles are in one mole of a substance?

  2. What is the gram-formula mass of CaCO3\text{CaCO}_3?

  3. How many moles are in 36.036.0 g of water, H2O\text{H}_2\text{O} (gram-formula mass 18.018.0 g/mol)?

  4. What is the total number of atoms in one mole of CO2\text{CO}_2?

  5. What is the correct formula for the compound of Al3+\text{Al}^{3+} and O2βˆ’\text{O}^{2-}?

  6. What is the percent by mass of oxygen in water, H2O\text{H}_2\text{O} (gram-formula mass 18.018.0 g/mol)?

  7. When balancing an equation, which may you change?

  8. What is the balanced equation for the combustion of propane, C3H8+O2β†’CO2+H2O\text{C}_3\text{H}_8 + \text{O}_2 \rightarrow \text{CO}_2 + \text{H}_2\text{O}?

  9. The reaction 2 Na+Cl2β†’2 NaCl2\,\text{Na} + \text{Cl}_2 \rightarrow 2\,\text{NaCl} is classified as

  10. Using the activity series (Table J), which single-replacement reaction occurs?

  11. For N2+3 H2β†’2 NH3\text{N}_2 + 3\,\text{H}_2 \rightarrow 2\,\text{NH}_3, how many moles of NH3\text{NH}_3 form from 6.06.0 mol of H2\text{H}_2?

  12. What is the first step of a mass-to-mass stoichiometry problem?

  13. A double-replacement reaction goes to completion when one product is