When carbon combines with oxygen, energy is released to the surroundings. Thus this
reaction
A) is an acid”base reaction.
B) is endothermic.
C) never reaches equilibrium.
D) is exothermic.
An object transported from Earth’s surface to the surface of the Moon has
A) the same mass, but different weight.
B) the same weight, but different mass.
C) the same mass and the same weight.
D) different mass and different weight.
E) none of these.
In organic molecules, a sulfur atom will normally form how many bonds?
A) 0
B) 1
C) 2