Two plane mirrors are attached to form a dual mirror system with an adjustable angle is known as the angle between the mirrors increases the number of images. a. increases b. decrease c. double d. remains the same​

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."

wher is the rest of the question

yes the answer is total mass in unchanged   : )