If two atoms are bonded with a bond energy of 87 kj, what must be done to break the bond?
a. 87 kj of energy must be added
b. the energy must be decreased by 87 kj.
c. the bond order has to be higher.
d. no energy should come out or go in.

Idon’t know how to solve this question

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

Astudent completes a titration by adding 12.0 milliliters of naoh(aq) of unknown concentration to 16.0 milliliters of 0.15 m hcl(aq). what is the molar concentration of the naoh(aq)? 1)5.0 m 2)0.20 m 3)0.11 m 4)1.1 m