Across
- 4. 6.02x1023
- 5. Calculate the mass, in grams, of 3.00 moles of calcium chloride. (round to the nearest tenth)
- 9. the unit of mass for subatomic particles
- 10. What is the molar mass of Al2O3? (nearest whole number with units)
- 12. a group of atoms bonded together
- 14. a standard scientific unit for measuring large quantities of very small entities such as atoms or molecules
- 15. the volume of one mole of gas
- 16. an extremely small piece of something – can refer to either atoms or molecules
- 18. the relationship between the relative quantities of substances taking part in a reaction or forming a compound
- 19. the reactant that restricts the amount of product that can be made in a chemical reaction
Down
- 1. the lightest of the subatomic particles
- 2. a weighted average of the isotopes of a particular element
- 3. the subatomic particle with a positive charge
- 6. How many moles are present in 100 g of Al? (round to the nearest hundredth)
- 7. How many molecules are in 108 grams of water? (rounded to the nearest hundredth)
- 8. the basic unit of a chemical element
- 11. The number of molecules of oxygen required to react with 2 moles of propane in a complete combustion reaction.
- 13. the reactant that there is extra of in a chemical reaction.
- 17. atoms of the same type with different numbers of neutrons