5. Why do water droplets form on the outside of a glass of cold soda? 6. Can frozen ice transfer thermal energy to another substance? If so, how?

7. How can you keep a cold drink cold without ice or a refrigerator?

8. How does an instant hand warmer make your hands feel warm?

9. What are some examples of the ways that we use thermal energy in our everyday lives?
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Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)

Many ionic compounds and a few highly polar covalent compounds are because they completely ionize in water to create a solution filled with charged ions that can conduct an electric current.

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)