ChemistryWiki | RecentChanges | Preferences
Difference (from prior major revision)
(no other diffs)
Changed: 6,10c6,7
Changed: 12,16c9,10
Changed: 18,22c12,14
Changed: 26,33c18,23
Changed: 35c25,30
Removed: 37,40d31
Changed: 42,43c33,35
Removed: 45d36
Changed: 50,58c41,46
Changed: 60,67c48,53
Changed: 69c55
Changed: 71c57,58
Changed: 73c60,61
Changed: 75c63,64
Changed: 77c66,67
Changed: 79c69,70
Added: 80a72,73
Homework
Directions- Print this page out and do this work. Write the Definition of each word below. Use the information from Chapter 9 to assist you.
Chemical Equation-
Word Equation-
Formula Equation-
Directions- Answer each question using chapter 9 for assistance
1. What additional information do coefficients tell you about a chemical equation?
2. Find the moles of each particle and the coefficients of the following equation, if there are 92.0 g of Na and 32.o g of O2 that come together to form 124.0 g of Na2O.
moles of Na: ____ moles of O2: ____ moles of Na2: ____
___Na + ___O2 --> ___Na2O
3. Write the equation for the endothermic reaction of CO2 breaking into C and O2.
4. Write the equation for the exothermic reaction of C and O2 combining to form CO2.
5. Show the chemical formula for each of the following, include phases.
solid magnessium metal-
liquid iodine-
solid sodium chloride-
gaseous water-
sodium chloride dissolved in water-
sodium hydroxide dissolved in water-