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
gladu [14]
3 years ago
11

Lana balanced an equation so that the result was 2C2H3Br + 5O2 → 4CO2 + 2H2O + 2HBr. Which most likely represents the starting e

quation?
2C4H3Br + 5O2 → 4CO2 + 2H2O + 2HBr
C2H3Br + 5O2 → 4CO2 + H2O + 2HBr
C4H3Br + O2 → CO2 + H2O + HBr
C2H3Br + O2 → CO2 + H2O + HBr
Chemistry
2 answers:
Elina [12.6K]3 years ago
5 0

Answer:

C2H3Br + O2 → CO2 + H2O + HBr

Explanation:

So it should be D :)

ratelena [41]3 years ago
4 0

Explanation:

C2H3Br + O2 → CO2 + H2O + HBr

You might be interested in
How many grams of lithium chloride can be produced from 14.3 g of lithium chlorate when it decomposes into lithium chloride and
vampirchik [111]

6.7 grams of lithium chloride will be produced.

<h3><u>Explanation:</u></h3>

Lithium chlorate is LiClO₃ and lithium chloride is LiCl. The reaction is,

2LiClO₃ = 2LiCl +3O₂.

So here, 2 moles of lithium chlorate produces 2 moles of lithium chloride.

Or, one molecule of lithium chlorate will produce one mole of lithium chloride.

Molecular weight of lithium chlorate =6.9 + 35.5 + 16\times3 = 90.4.

So, 14.3 grams of lithium chlorate has 0.16 moles of lithium chlorate.

Thereby, moles of lithium chloride produced is 0.16 moles.

Molecular weight of lithium chloride = 6.9+35.5 = 42.4 grams.

So weight of lithium chloride produced = 42.4 \times 0.16 = 6.7 grams.

Thus, weight of lithium chloride produced will be 6.7 grams.

3 0
3 years ago
does the nitro group on the pyridine ring make the ring more electron rich or more electron deficient
Arte-miy333 [17]

Answer:

more electron deficient

Explanation:

The nitro group is an electron withdrawing group. It withdraws electrons from the pyridine ring by resonance.

This electron withdrawal by resonance makes the pyridine ring less electron rich or more electron deficient.

Hence, the nitro group makes the pyrinde ring more electron deficient

3 0
2 years ago
Help! What will cause an increase in the weight of an object
Vitek1552 [10]
The objects mass I took physical science
7 0
3 years ago
Some fuel cells are powered by hydrogen. Scientists are looking into the decomposition of water (H2O) to make hydrogen fuel with
skad [1K]

A.  Decomposing water requires a high activation energy.

Explanation:

In decomposing water to release hydrogen gas to make fuel cells, the process requires a very high activation energy.

                             2H₂O ⇆ 2H₂  + O₂

 This is the overall reaction. O-H must be broken to release free hydrogen to produce hydrogen gas.

The O-H bond is a very strong force of attraction that requires a high activation energy to overcome.

  • The activation energy is the energy barrier that must be overcome before a reaction takes place.
  • The sun is a renewable source of energy.
  • Water decomposition produces useful oxygen gas needed by all life for cellular respiration.

Learn more:

Source of energy brainly.com/question/2948717

#learnwithBrainly

4 0
3 years ago
Help quickkkk plssssssss
earnstyle [38]

Answer:

I think B or D

Explanation:

yejsndvewjnsvdcehejd

4 0
3 years ago
Read 2 more answers
Other questions:
  • Alan's go-kart travels 1750 feet per minute, and Barry's go-kart travels 21 miles perhour. Who's go-kart travels faster?
    6·1 answer
  • Calculate the percentage by mass of water in magnesium sulfate heptahydrate, MgSO4•7H2O
    8·2 answers
  • Katie blows up a balloon and ties it so there is a fixed amount of air in the balloon. She wraps a piece of string around the wi
    15·1 answer
  • What are moles in chemistry?
    11·2 answers
  • Determine the oxidation state of cr in cr(so4)2.
    5·2 answers
  • The chemical symbol for sodium is <br> a. na. <br> b. sn. <br> c. s. <br> d. n.
    9·1 answer
  • The balanced equation below represents the decomposition of potassium chlorate.
    8·1 answer
  • In order to qualify as matter, the object must
    11·2 answers
  • Phase change involves changing states of matter (solid-liquid-gas). How do these three states of matter differ from each other?
    9·1 answer
  • 12. What structures does the fish have that are NOT present in the fly?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!