When .455g of anthracene, c14h10, is combusted in a bomb calorimeter that has a water jacket containing 500 g of water, the temperature of the water increases by 8.63 c?

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

Can someone me with 6 to 10 plz this is for masteries test.

The kw for water at 0 °c is 0.12× 10–14 m2. calculate the ph of a neutral aqueous solution at 0 °c.