C)a 100ml graduated cylinder contained 25.6ml of water. a test tube full of water was emptied into the graduated cylinder. the water volume in the graduated cylinder was then found to be 45.8ml. what was the volume of water in the test tube?

20.2 mL

Explanation:

45.8 - 25.6 as 45.8 was the mass with the water from the test tube added

Answer : The volume of water in the test tube is 20.2 mL

Explanation : Given,

Volume of water in graduated cylinder = 25.6 mL

Volume of graduated cylinder = 100 mL

Volume of water after adding full test tube of water = 45.8 mL

Now we have to calculate the volume of water in the test tube.

Volume of water in the test tube = Volume of water after adding full test tube of water - Volume of water in graduated cylinder

Volume of water in the test tube = 45.8 mL - 25.6 mL

Volume of water in the test tube = 20.2 mL

Therefore, the volume of water in the test tube is 20.2 mL

a galvanic cell( aka voltaic cell) and electrolytic cell

explanation:

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the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots