What is evidence that a chemical change has happened? A. A substance changes into a new kind of substance. B. You observe a colo
r change. O C. The amount of matter increases. D. The temperature of a substance increases or decreases.
1 answer:
Answer:
B.change in colour...
I guess that's the answer
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What statements??? please list the rest of the question..
Answer:
The molarity of the HCl solution is 4M.
Explanation:
Hence, the molarity of the HCl solution = 4 M
Answer:
Oxygen
Silicon
Aluminium
Iron
Calcium
Explanation:
Oxygen=47 percent
Silicon=28 percent
Aluminium=8 percent
Iron=5 percent
Calcium=3.5 percent
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Mark me as brainliest
Answer:
A
B
A
B
B
Explanation:
B - MIXTURE
A - COMPOUND
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