1
Which of the following statements is true?
A.
Chemical reactions can neither absorb thermal energy nor release thermal energy.
OB
Chemical reactions can either absorb thermal energy or release thermal energy.
C.
Chemical reactions can only release thermal energy
D.
Chemical reactions can only absorb thermal energy.

the answer is barium and copper bromide

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

hope i !

answer carbon and three oxygen atoms;