1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rashid [163]
3 years ago
7

___CH4 + ___O2 → ___CO2 + ___H2O When you burn natural gas in the laboratory, methane burns. What numbers fill in the blanks to

balance this equation? A) 1,2,2,1 B) 1,2,1,2 C) 2,4,2,4 D) 2,1,2,1 Eliminate
Chemistry
1 answer:
Hitman42 [59]3 years ago
3 0

Answer:

The coefficient are 1,2,1,2 ( option B is correct)

Explanation:

Step 1: Data given

Methane = CH4

Burning methane = CH4 + O2

Step 2: The unbalanced equation

CH4(g) + O2(g) → CO2(g) + H2O(g)

Step 3: Balancing the equation

CH4(g) + O2(g) → CO2(g) + H2O(g)

On the left side we have 4x H (in CH4), on the right side we have 2x H (in H2O). To balance the amount of H, on both sides, we have to multiply H2O (on the right side by 2).

CH4(g) + O2(g) → CO2(g) + 2H2O(g)

On the left side we have 2x O (in O2), on the right side we have 4x O (2x in CO2 and 2x in 2H2O). To balance the amount of O on both sides, we have to multiply O2 (on the left side by 2).

CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)

The coefficient are 1,2,1,2 ( option B is correct)

You might be interested in
Which description best characterization the motion of particles in a solid
marta [7]

Are there any choices? Because from what the question is it seems like we need choices to help

4 0
3 years ago
Read 2 more answers
A chemist prepares a solution of sodium chloride(NaCl) by measuring out 25.4g of sodium chloride into a 100ml volumetric flask a
labwork [276]

Answer: 4 molL-1

Explanation:

Detailed solution is shown in the image attached. The number of moles of NaCl is first obtained. Since the molarity must be in units of molL-1, the volume is divided by 1000 and the formula stated in the solution is applied and the answer is given to one significant figure.

5 0
3 years ago
Read 2 more answers
What is density? A) mass divided by volume B) volume divided by mass
wolverine [178]

Answer:

A) mass divided by volume

Explanation:

7 0
3 years ago
Read 2 more answers
What metal will have properties most similar to those of chromium (Cr)? Why?
garri49 [273]
That element is manganese. As they are in same horizontal row (period) and are next to each other. That is why they show same properties. 

Hope this helps xox :)
5 0
3 years ago
How do substances and mixtures diifer
vlabodo [156]

Answer:

hello hope this helps :)

a pure substance consists only of one element or one compound. a mixture consists of two or more different substances, not chemically joined together.

Explanation:

5 0
3 years ago
Other questions:
  • As the pressure on the surface of a liquid decreases, the temperature at which the liquid will boil
    14·2 answers
  • Limestone is composed almost entirely of calcite which has the chemical formula caco 3. As a result, limestone is classified as
    12·1 answer
  • Democritus believed that matter is made up of tiny individual particles known as
    9·2 answers
  • A patient needs 40.0 mg of antibiotic per kilogram of body weight each day. If the patient weighs 55 kilograms.
    12·1 answer
  • A substance composed of two or more elements in a fixed, definite proportion is
    9·1 answer
  • Item 6
    8·2 answers
  • Question 3 (10 points)<br> How many valence electrons are in a neutral atom of Neon-212
    7·1 answer
  • How does ground water become polluted
    5·2 answers
  • How many atoms are in 4Ca(NO3)2
    7·1 answer
  • What is the similarity between man and woman​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!