8. A 637.2 g sample of mercury heats from 10°C to 23°C The specific heat capacity of me How many joules of heat were absorbed by the sample?
a. -6.837)
b. 6.837)
c. -1155.56 J
d. 1155.56 )

Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false