1. Pure vs. Impure water, why can't we confirm absence of an ion?
- The reaction when adding a substance to the mixture causes the ion to be so small to the naked eye. So it's impossible to say that there is an absence of an ion or not!
2. Explain the difference between a confirming test and a distill water bank? What purpose does each serve?
- The difference is that a confirming test is a positive test that confirms that the ion in question is present, while the blank is known not to contain ions.
The purpose the confirming test serves: confirms the presence of an ion
The purpose of blank: has no ions so we can tell if the other substances contain ions.
3. Compare the physical properties of water vs. hydrogen vs. oxygen?
-Water is a liquid the others are gases.
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