If 213 J raises a sample of water 8.2°C, what is the mass of the water? A. 0.16 g
B. 6.2 g
C. 51 g
D. 26 g

What is important to study for nios grade 12 chemistry? i have only one month left.

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6