It would be D!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
since mass percent is based on the proportions of elements in a compound, the mass of a sample does not matter
Sedimentary rocks are formed in D. ancient seas because they are formed when layers of sediment (sand, mud, dead organisms, etc) builds up on top of each other and pressure compresses them into rock
Answer:
The answer to your question is: letter E
Explanation:
Endothermic process, is a process that needs energy to proceed.
A) ice melting We need to add energy to this process
B) water freezing It is not necessary to add energy in this process
C) boiling soup We need to add energy to this process
D) Hydrochloric acid and barium hydroxide are mixed at 25 °C: the temperature increases. This reaction happens without the addition of energy
E) Both A and C This option is correct because both processes needs the
addition of energy to proceed.