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3 years ago

The reaction CO2(g) → C(s) + O2(g) is a decomposition reaction. True False

Chemistry

2 answers:

alexandr1967 [171]3 years ago

7 0

Answer:

True

Explanation:

Lyrx [107]3 years ago

4 0

The reaction CO₂(g) → C(s) +O₂(g) is a decomposition reaction is true

Explanation

A Decomposition reaction is a reaction in which involve breaking down a compound into two or more simpler substances.

The reaction above is a decomposition reaction since CO₂ molecule is broken down into C (an element) and O₂ (a molecule).

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The balanced equation below represents the decomposition of potassium chlorate.

dezoksy [38]

The oxidation number of chlorine in the reactant can be determined by K ion and O ion. K ion is +1 and O ion is -2. And the Cl is +5. The gas has the greatest entropy and the solid has the least. In the production, there are solid and gas. So it has more entropy than the reactants with solid only.

6 0

4 years ago

Which best defines a pioneer species?

Juli2301 [7.4K]

Answer: C (The first species to populate an uninhabited area)

Explanation:

8 0

3 years ago

Read 2 more answers

What is the percentage yield of O2 if 12.3 g of KClO3 (molar mass 123 g) is decomposed to produce 3.2 g of O2 (molar mass 32 g)

My name is Ann [436]

Answer:

The percentage yield of O2 is 66.7%

Explanation:

Reaction for decomposition of potassium chlorate is:

2KClO₃ → 2KCl + 3O₂

The products are potassium chloride and oxygen.

Let's find out the moles of chlorate.

Mass / Molar mass = Moles

12.3 g / 123 g/mol = 0.1 mol

So ratio is 2:3, 2 moles of chlorate produce 3 mol of oxygen.

Then, 0.1 mol of chlorate may produce (0.1 .3)/ 2 = 0.15 moles

Let's convert the moles of produced oxygen, as to find out the theoretical yield.

0.15 mol . 32 g/ 1mol = 4.8 g

To calculate the percentage yield, the formula is

(Produced Yield / Theoretical yield) . 100 =

(3.2g / 4.8g) . 100 = 66.7 %

8 0

4 years ago

Melissa wants to separate a mixture of many tiny beads that are all the same size. Some of the beads are made from pine wood and

Volgvan

Answer:

Your answer here is B. Add water and the wooden beads will float.

Explanation:

Please mark me as Brainliest! :)

5 0

3 years ago

Read 2 more answers

What happens when heavy exercise results in too much acid in the human body?

White raven [17]

When heavy exercise results in too much acid in the human body, then "Lactic acid fermentation" occurs in our body. It is a metabolic process by which glucose and other six-carbon sugars <span>are converted into cellular energy and the metabolite </span>lactate, and we feel a lot of pain like burning muscles

Hope this helps!

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3 years ago