Provide at least three indicators of a chemical change that are present in burning a piece of paper.
1 answer:
Answer:
Some chemical indicators perceived while a piece of paper is burning are:
Production of an Odor: there is a smell of burnt paper
Change in Temperature: combustion is a highly exothermic reaction , so the temperature increase
Change in Color: paper changes to ashes as the burning process occurs
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Yes molecules are tightly together. Hope this helps
Answer:
Combination reaction
C sounds like the right answer in this question
Answer:
Neutrons play no role in the net charge of an atom, so you can ignore them here.
Proton = 7
Electron = 10
Net Charge = 7 - 10
= -3
Again,
Proton = 3
Electron = 2
Net Charge = 3 - 2
= 1
Answer:
D) biodiversity
Explanation:
the answer is D) biodiversity
