The smallest particle of an element that retains the chemical identity of that element is a/an
a. mixture.
b. molecule.
c. compound.
d. atom.

Temperature and kinetic energy are proportional. a) adirectly b) directly c) indirectly

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.)

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen