This volcanic rock formed from lava in gas.

a. slowly; rich
b. quickly; rich
c. slowly; poor
d. quickly; poor

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?

If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?