If a person has the values for an object’s density and volume, what value can be calculated?

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

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.)

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false