A graduated cylinder has a volume of water of 45 ml. An object is added that increases that volume to 83ml. What is the volume of the object?

The answer is 38 mL

Explanation:

The volume of the object can be found by using the formula

volume of object = final volume of water - initial volume of water

volume = 83 - 45

We have the final answer as

38 mL

Hope this helps you

Electrical charges of ionic bonds

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.