evaporation. When a substance undergoes a change of matter from a solid to gas, it is the process of evaporation.
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Answer:
4Hg+2O2=4HgO
four Mercury + four oxygen
SO4 -2, or Sulfate
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Answer: 250
Explanation:
You work this problem by using proportions.
A proportion is the equalization of two ratios.
Here you assume that the ratio of fish with tags to total fish that you catch is the same than the ratio of fish with tags to total fish in the pond.
Mathematically:
- 5 fish with tag / 25 fish = 50 fish with tag / x
Solve for x:
- Multiplication property of equality: x × 5 = 50 × 25
- Division property of equality: x = 50 × 25 / 5
- Result: 250
