Across
- 2. In our lava lamp experiment, alka seltzer reacted with this to form bubbles.
- 4. The two reactants in our candle burning experiment were methane and __________.
- 5. In a chemical reaction, bonds in the reactants are broken and the atoms rearrange to form new _________.
- 6. If you place a cover over a burning candle, the flame will go out because you have taken away one of the __________.
- 8. When our lava lamps stop bubbling, we can add more of this to make it go again.
- 13. Some chemical reaction will occur at low temperatures, they will just do so at a ________ rate.
- 14. We represent chemical reactions with __________ equations.
- 15. True or false: the reaction in the cold water bath will produce less product than the reaction in the hot water bath.
Down
- 1. Reactions at higher temperature have more of this.
- 3. The _________ of matter states that atoms can neither be created nor destroyed.
- 7. In our hot water/cold water bath solutions, calcium carbonate reacted with this to form bubbles.
- 9. There are this many carbon atoms on each side of the following chemical equation: 2C4H10 + 13O2 ------> 8CO2 + 10H2O.
- 10. Increasing temperature increases the ________ of the reaction.
- 11. There is an equal number of atoms on each side of the equation to achieve this.
- 12. Change of state from a liquid to a gas is an example of this kind of change.