What is the potential energy of a car with a mass of 1200kg at the top of a 42m high hill?

Write the overall equation for the reaction for lithium battery

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?