(Answered) 1 a beaker contains a clear colorless liquidnbspit has

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1. A beaker contains a clear, colorless liquid. It has three chemical substances in it, two are liquid and one of them is a solid. How could you determine if it has water, ethanol, and table salt? Remember you're not allowed to taste it.

2. Is it possible for the sum of a column of numbers, each containing two significant figures, to have more than two significant figures? Explain.

3. How many significant figures should be there in the answer to the following calculation?

(35.2-30.1) x 1.23 = ____________

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