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
inna [77]
3 years ago
8

Given the following chemical reaction: 2 O2 + CH4 CO2 + 2 H2O What mass of oxygen is required to completely react with 20 grams

of CH4? 6 C 12.01 Carbon 1 H 1.01 Hydrogen 8 O 16.00 Oxygen A. 10 grams O2 B. 20 grams O2 C. 80 grams O2 D. 144 grams O2
Chemistry
1 answer:
Jobisdone [24]3 years ago
4 0
The chemical equation is:
CH₄ + 2O₂ → CO₂ + 2H₂O

First, we calculate the moles of methane present using:
Moles = mass / molecular mass
Moles = 20 / 16
Moles = 1.25

Next, we may observe from the chemical equation that the molar ratio between methane and oxygen is 1 : 2
So the moles of oxygen required are 2 x 1.25
2.5 moles of oxygen required

Mass = moles * molecular mass
Mass = 2.5 * 32
Moles = 80

C. 80 grams O₂
You might be interested in
Please help fast! I will give brainliest!
Kaylis [27]

Answer:(c)

Explanation:

3 0
2 years ago
Based on the following chemical equation how many hydrogen atoms are present in the products side?
e-lub [12.9K]

Answer:

the answer is 6

Explanation:

there is 3 hydrogen molecules in NH3 and there's 2 molecules of NH3 so in total, there are 6 hydrogen molecules on the products side.

8 0
2 years ago
If you were givin 2.50 moles of.sodium bromide, how many grams of salt do you have
mihalych1998 [28]

Answer: 257.23

Explanation:

7 0
3 years ago
Lithium sulphate is used in some medicines and its presence in a medicine can be shown by two a combination of two tests a)expla
shtirl [24]

Answer:

A flame test could help by seeing what things it could catch on fire from or the things that could happen with acids etc. I would test the medicine by asking someone who has had it in their life, asking doctors or I would maybe use it myself maybe. (I don’t know about c, sooo sorry)

6 0
2 years ago
Use the activity series below to predict the products of each of the following reactions. Do not worry about
myrzilka [38]

Answer:

i) CCl₄ and Br₂ does not react

ii) CBr₄ + Cl₂ → CCl₄ + Br₂

Explanation:

i) CCl₄ + Br₂ (no reaction)

From the given activity series, we have that chlorine gas, Cl₂, is more reactive than bromine gas, Br₂, therefore, a reaction of CCl₄ + Br₂ will not have a reaction as the propensity for the chlorine to stay combined with the carbon is higher than the ability for bromine to remain combined with or attract the carbon. Therefore, for CCl₄ + Br₂ there is no reaction

ii) CBr₄ + Cl₂

From the given activity series, we have that chlorine gas, Cl₂, is more reactive than bromine gas, Br₂, therefore, a reaction of CBr₄ + Cl₂ will give products that will have the Br in the CBr₄ replaced by the Cl₂ as follows;

CBr₄ + Cl₂ → CCl₄ + Br₂

The products of the reaction of CBr₄ and Cl₂ are therefore CBr₄ and Cl₂.

8 0
2 years ago
Other questions:
  • 2.
    11·2 answers
  • Which of the following is an example of using creativity while recording measurements during an experiment?
    12·2 answers
  • What type of matter is gravel
    10·1 answer
  • Given the two compounds propane and pentanone, the one with the higher boiling point is
    14·1 answer
  • A 0.1018 g sample of organic compound with a molar mass of 225.4 g/mol was
    5·1 answer
  • When water is solid, do molecules move?
    12·2 answers
  • 8. Which chemical reaction involves the fewest Hydrogen,
    6·1 answer
  • What causes the high luster of a metal?
    14·1 answer
  • It is the combination of the uppermost mantle and the crust​
    5·1 answer
  • What 3 things will you do to dissolve a solid (salt) faster in a liquid (water)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!