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China has a population of approximately 1,322,000,000 people. Express this number in scientific notation.

asked Mar 18, 2018

Mathematics
high-school

1 answer

3 votes

57.1k views

Molecules on an acid–base indicator react chemically with ions in a solution, causing the indicator to change color. Which ions in the solution cause this reaction?

asked Jan 13, 2018

Physics
high-school

1 answer

2 votes

112k views

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