B. is positive
H20 (l)--> H20 (g)
when that happens, the heat is absorbed into the liquid to change the state of the liquid to gas; therefore, in order to change to a gaseous state, heat must be a reactant. and so enthalpy is increasing
Answer:
170 mL
Explanation:
<u>The total volume to be reported should be 170 mL.</u>
According to the significant rule in mathematical operations, final answers are usually reported to reflect the accuracy of the least accurate number.
In this case, the least accurate of all the volumes has zero significant digits after the decimal, hence, the final answer after the mathematical operation should also have no significant digits after the decimal.
18 + 128.7 + 23.45 = 170.15
<em>Therefore, the total volume to be reported when significant digits are taken into account would be </em><em>170 mL.</em>
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Answer:
The chemicals differ depending on what the surrounding area is like.