Answer:
D. Molecules are able to move as they heat up to melt
Explanation:
Answer:
If you're looking at the data as a whole, it would most likely be 100ml.
Explanation: The definition of precise is data close together so 100ml is furthest away from the other recorded numbers
Answer:
It was not until he was 50 years old, in 1859.
Explanation:
<span>Enthalpy
change is the total heat that is absorbed or evolved in a certain reaction that
is being carried in a constant pressure system. It can be calculated by the
product of the specific heat of the substance and the difference of the final
temperature and the initial temperature. For this case, the enthalpy of combustion is given, so we simply multiply the amount of octane present to the enthalpy given to determine the total heat that is released.
Heat = 75 g ( 1 mol / 114.23 g ) (- 5500 kJ / mol ) = - 3611.14 kJ
The negative sign in the calculated value represents that this heat is being released in the process.</span>
I think the correct answer from the choices listed above is option C. Cooking oil is not an example of a heterogeneous mixture. This type of mixture is a system where the properties are not uniform all through out the system and examples are <span>trail mix, oil and vinegar dressing and chocolate chip cookies.</span>
