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goblinko [34]
3 years ago
13

3. Perform each calculation to the correct number of significant figures.

Chemistry
1 answer:
Gwar [14]3 years ago
6 0

Answer:

0.14

Explanation:

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Which of the following is an oxidation-reduction reaction? so2(g) h2o(l) right arrow. h2so3(aq) caco3(s) right arrow. cao(s) co2
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The reaction which shows oxidation and reduction simultaneously is C₆H₁₂O₆(s) + 6O₂(g) → 6CO₂(g) + 6H₂O(l).

<h3>What are redox reactions?</h3>

Those reaction in which oxidation as well as reduction of substances takes place simultaneously will known as redox reactions.

  • SO₂(g) + H₂O(l) → H₂SO₃(aq)
  • CaCO₃(aq) → CaO(s) + CO₂(g)
  • Ca(OH)₂(s) + H₂CO₃(l)  CaCO₃(aq) + 2H₂O(l)

Above reaction are not the redox reactions as in these reaction oxidation and reduction simultaneously not takes place.

  • C₆H₁₂O₆(s) + 6O₂(g) → 6CO₂(g) + 6H₂O(l)

In the above reaction reduction of oxygen takes place as its oxidation state changes from 0 to -2, and at the same time oxidation of carbon takes place as its oxidation state changes from 0 to +4.

Hence correct option is (4).

To know more about redox reactions, visit the below link:
brainly.com/question/7935462

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Pupil, Cornea, Retina, and Lens

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Ants live on acacia trees in South America. The ants feed on sugars secreted by the trees. The trees provide room for the ants t
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Mutualism! The tree provides a home and food for the ants, while the ants protect the tree :)
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What occurs to the atoms of reactants in a chemical reaction?
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What occurs to the atoms of reactants in a chemical reaction?

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In a chemical reaction, the atoms and molecules that interact with each other are called reactants. ... No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

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How many moles of gold atoms do 4.05×1024 gold atoms constitute?
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Answer: There are 6.725 mols

Explanation:

Message me for extra information

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