2. Given a container of a solution of 5% HCl, all samples tested from this same bottle
will have the same mass ratio of hydrogen to chlorine. This is an application of
O A. the law of constant composition.
B. the law of conservation of mass.
O C. the law of conservation of energy.
O D. the law of multiple proportions.

20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?

The reactions of photosynthesis occur in the of plant cell? a.mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?