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KIM [24]
3 years ago
8

Suppose you want to use a combustion chemical reaction to cook hot dogs and hamburgers. what type of reaction would you want? a

an exothermic reaction that releases energy. b a reaction that destroys energy. c a reaction that creates energy. d an endothermic reaction that absorbs energy.
Chemistry
2 answers:
guajiro [1.7K]3 years ago
6 0

Answer : The correct answer is a) an exothermic reaction that releases energy.

Combustion reaction is generally referred as burning or when hydrocarbon reaction with oxygen to produce carbon dioxide and water . Combustion reaction releases energy. Example :

CH₄ + O₂ → CO₂ + H₂O + Energy or heat .

The reaction which releases energy or heat are known as Exothermic reactions .

Since it says hot dogs and hamburgers are cooked means they are undergoing combustion chemical reaction and so they are exothermic reactions. So option a) an exothermic reaction which releases energy is correct .

laiz [17]3 years ago
3 0
D. endothermic reaction that absorbs energy
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Answer:

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Explanation:

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Is straining cooked pasta from water a physical or chemical separation
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It is a physical separation.

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Since straining pasta from water does not require breaking the pasta or water to other substances, plus heat and electricity is not involved, therefore this is a type of physical separation.
7 0
4 years ago
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allsm [11]
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6 0
3 years ago
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Marina86 [1]

Answer:

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Explanation:

If a compound SO existed, we would identify the oxidation state of sulfur using the following logic:

  • oxygen is more electronegative than sulfur, so it's more electron-withdrawing and it should have a negative oxidation state producing a positive oxidation state for sulfur;
  • oxygen typically has an oxidation state of -2;
  • we may then apply the fact that SO is expected to be a molecule with a net charge of 0;
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That said, in this hypothetical compound S would have an oxidation state of +2.

6 0
3 years ago
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