1. Exit Slip Questions Use the next slides. Record all answers to the questions on a sheet of paper to be turned in.

2. 170 160 150 140130120 110100 90 80 7060504030 20 1098765432 1 0 List the elements in this compound: H 2 SO 4 How many atoms of each element are in the compound? 1

3. What does a chemical equation tell us? 2

4. A student wrote the following equation: 4Al + 3O 2 2Al 2 O 3 – Write a sentence to describe what occurs in this reaction. 3

5. What do coefficients & subscripts show us in chemical formulas? 4

6. Identify the reactants, products, subscripts, and coefficients in this chemical equation: 6 CO 2 + 6 H 2 O + light → C 6 H 12 O 6 + 6 O 2 5

7. Propane has three atoms of carbon and eight atoms of hydrogen. What is propane's chemical formula? 6