Different forms of this element are often used in a type of radiometric datingthat determines the ages of objects up to about 40,000 years. o a) argonob) carbono c) uraniumod) potassium

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.)

In a chemical reaction at equilibrium, the rate of the forward reaction the rate of the reverse reaction. if the rate of the forward reaction more products are formed.

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.