PLEASE HELP 100 POINTS! Use the rules of adding and multiplying significant figures to answer these questions. A substance inside of test tube 1 has a measured mass of 2.25 g. A substance inside test tube

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asked Apr 17, 2023 62.2k views

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PLEASE HELP 100 POINTS! Use the rules of adding and multiplying significant figures to answer these questions.

A substance inside of test tube 1 has a measured mass of 2.25 g.
A substance inside test tube 2 has a measured mass of 2.2 g.

Test tube 1 and 2 are mixed (added) together. What is the new mass of liquid now combined?