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# Unit 2
# Unit 2 - Chemistry
## Questions to Ask Ms.Keras
1. How do you tell the difference between mechanical mixtures and a mixture/solutions? ✔
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|Apple Juice|
8. **Identify each of the following as a mechanical mixture or a solution**
a. a pane of clear glass. **Solution**
b. chocolate chip ice cream. **Mechanical Mixture**
c. clear apple juice. **Solution**
d. a pizza. **Mechanical Mixture**
e. garbage in a garbage can. **Mechanical Mixture**
- a pane of clear glass. **Solution**
- chocolate chip ice cream. **Mechanical Mixture**
- clear apple juice. **Solution**
- a pizza. **Mechanical Mixture**
- garbage in a garbage can. **Mechanical Mixture**
9. **What kind of alloy makes an effective solder material?**
Tin and lead make an effective solder material, as it is fluid at high temperatures but solidifies quickly.