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AfilCa [17]
3 years ago
5

Need helpppppppppppppppppp

Chemistry
2 answers:
kobusy [5.1K]3 years ago
4 0

Your answer is, all of the above.

<u>Chemical Change </u>

A chemical change occurs on the molecular level and produces a new substance. However, a physical change rearranges molecules and does not produce a new substance.

                    <u>10 examples of chemical changes</u>

  • Burning of paper and log of wood
  • Digestion of food
  • Boiling an egg
  • Chemical battery usage
  • Electroplating a metal
  • Baking a cake
  • Milk going sour
  • Various metabolic reactions that take place in the cells
  • Rotting of fruits
  • Decomposition of waste

                      <u> Impacts of Chemical changes</u>

Anytime a new substance is made, a chemical change takes place. Usually two or more materials are combined and a new substance is formed. A chemical change can produce amazing explosions, like fireworks.

Thus, <u>all of the above</u> is the correct answer. Learn more about "Chemical Changes" here

brainly.com/question/24547616

nadezda [96]3 years ago
3 0

Answer:

none of the above

Explanation:

deposition (gas to solid), sublimation (solid to gas), evaporation, this all is physical change not chemical change

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Answer:

D, ABC, C, A, ?, B, A, ?, B, C, D, D, C, D

Explanation:

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borishaifa [10]

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<u>Explanation:</u>

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For the given unbalanced chemical equation:

2H_2S+3O_2\rightarrow H_2O+SO_2

<u>On the reactant side:</u>

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<u>On the product side:</u>

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To balance the equation, a student must balance the atoms by adding 2 infront of both H_2O and SO_2

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Explanation:

Your welcome! Have a great day!

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