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2 years ago

1. What is the oxidizing agent in the following reaction? CH4 + 2O2 --> CO2 + H2O

Chemistry

2 answers:

Lena [83]2 years ago

8 0

2O2 IS THE OXIDIZING AGENT BECAUSE IT GIVES ALL OTHER ELEMENT OXYGEN

WARRIOR [948]2 years ago

7 0

Answer:

Oxygen gas (O₂)

Explanation:

Oxidizing agent is one which its self gets reduced and oxidizes the other.

Oxidation is the process where the oxidation number of substance increases while in reduction the oxidation number decreases.

The oxidation number of hydrogen in both methane and water is "+1"

Oxidation number of carbon in methane is "-4"

While its oxidation number in carbondioxide is "+4"

Thus carbon is undergoing oxidation.

While the change in oxidation number of oxygen from O₂ to CO₂ is "0" to -2

Hence it is undergoing reduction and oxidizing carbon.

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Artyom0805 [142]

Answer: Option C

Explanation:

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3 years ago

What physical property of materials depends on the ability of electrons to move

Alisiya [41]

B- Electrical conductivity

6 0

3 years ago

How many moles of Co2 are produced when 0.2 moles of sodium carbonate reacts with excess HCl

Pie

To determine the number of moles of carbon dioxide that is produced, we need to know the reaction of the process. For the reaction of HCl and sodium carbonate, the balanced chemical equation would be expressed as:

2HCl + Na2CO3 = 2NaCl + H2O + CO2

From the initial amount given of sodium carbonate and the relation of the substances from the balanced reaction, we calculate the moles of carbon dioxide as follows:

0.2 moles Na2Co3 ( 1 mol CO2 / 1 mol Na2Co3 ) = 0.2 moles CO2

Therefore, the amount in moles of carbon dioxide that is produced from 0.2 moles sodium carbonate would be 0.2 moles as well.

5 0

2 years ago

One of the most difficult solar energy design problems to solve is:

Sonja [21]

I'm not sure but i would say C.storing the heat energy.

6 0

3 years ago

Read 2 more answers

WILL MARK BRAINLIEST!!!!

Lyrx [107]

Answer:

5.702 mol K₂SO₄

General Formulas and Concepts:

Atomic Structure

Reading a Periodic Table
Compounds
Moles

Stoichiometry

Using Dimensional Analysis

Explanation:

Step 1: Define

[Given] 993.6 g K₂SO₄

[Solve] moles K₂SO₄

Step 2: Identify Conversions

[PT] Molar Mass of K: 39.10 g/mol

[PT] Molar Mass of S: 32.07 g/mol

[PT] Molar mass of O: 16.00 g/mol

Molar Mass of K₂SO₄: 2(39.10) + 32.07 + 4(16.00) = 174.27 g/mol

Step 3: Convert

[DA] Set up: $\displaystyle 993.6 \ g \ K_2SO_4(\frac{1 \ mol \ K_2SO_4}{174.27 \ g \ K_2SO_4})$
[DA] Divide [Cancel out units]: $\displaystyle 5.7015 \ mol \ K_2SO_4$

Step 4: Check

Follow sig fig rules and round. We are given 4 sig figs.

5.7015 mol K₂SO₄ ≈ 5.702 mol K₂SO₄

7 0

3 years ago