Answer:
Newton's first law states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
Explanation:
Hope this helps!
In regards to the given question, option “1” is the correct
option. When propane is burnt to complete combustion, it results in the
formation of two completely different substances. It actually forms a mixture
of water vapour and carbon dioxide. When NaCl or sodium chloride is melted, it
does not result in the formation of any new substance and so option “2” cannot
be the correct answer. With regards to deposition of carbon dioxide and solidification
of water, no new substance gets formed and so can be neglected as the answer to
the question.
Answer: an addition reaction is one where two molecules react together to produce one. in this case a bromine molecule reacts with ethene and one of the bromine atoms is added to ethene
Explanation:
hope this helps :)
Answer: D, splitting water into hydrogen and oxygen is a chemical change.
Answer:
10 (idk why an answer choice isn't 10)
Explanation:
-log(0.0001) = 4 pOH
pH = 14 - pOH
pH = 10
