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
Goryan [66]
3 years ago
5

HELP FAST PLZ!!!!

Chemistry
2 answers:
amm18123 years ago
8 0
I would say letter D.
A is biology.
Ecology has to do with distribution of  animals.
Taya2010 [7]3 years ago
7 0
It is d for shure just did it
You might be interested in
What visible evidence indicates that a solution is saturated?
AVprozaik [17]
The greatest visual evidence you can use when trying to determine if a solution is saturated is to look and see if everything in the test tube is a single color and a single consistency.
5 0
3 years ago
Read 2 more answers
A compound that changes color when it is in contact with an acid or base is called
malfutka [58]
It's called a pH indicator.
4 0
3 years ago
All of the following are abiotic factors in an ecosystem except
saul85 [17]
Bacteria are the living/biotic components in an ecosystem.
5 0
3 years ago
Read 2 more answers
Please Help Me!!!
sergejj [24]

Answer:

The products are carbon dioxide and water

Explanation:

Step 1: Data given

Combustion = a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat. Combustion reactions must involve  O2  as one reactant.

Step 2: The complete combustion of C3H7OH:

For the combustion of 1-propanol, we need O2.

The products of this combustion are CO2 and H2O.

C3H7OH + O2→ CO2 + H2O

On the left side we have 3x C (in c3H7OH), on the right side we have 1x C (in CO2). To balance the amount of C, we have to multiply CO2 on the right side by 3

C3H7OH + O2→ 3CO2 + H2O

On the left side we have 8x H (in C3H7OH) and 2x on the right side (in H2O). To balance the amount of H, we have to multiply H2O, on the right side by 4.

C3H7OH + O2→ 3CO2 + 4H2O

On the left side we have 3x O (1x in C3H7OH and 2x in O2), on the right side we have 10x O (6x in CO2 and 4x in H2O).

To balance the amount of O on both sides, we have to multiply C3H7OH by 2, multiply O2 by 9. Then we have to multiply 3CO2 by 2 and 4H2O by 2. Now the equation is balanced.

2C3H7OH + 9O2→ 6CO2 + 8H2O

For 2 moles propanol, we need 9 moles of O2 to produce 6 moles of CO2 and 8 moles Of H2O

The products are carbon dioxide and water

7 0
3 years ago
There are several ways to model a compound. One type
mr Goodwill [35]

Answer:

C4H9O2

Explanation:

there are 4 carbons, 9 hydrogens and 2 oxygens

6 0
3 years ago
Other questions:
  • Does mercury have any reconnaissance satellites? (science)
    7·2 answers
  • Riya rides his bike 63 miles in 270 minutes. What is his average speed in miles per hour? Be sure to include the equation for sp
    12·1 answer
  • What is a physical change?
    12·2 answers
  • How is carbon dioxide different than the other types of matter
    5·1 answer
  • The chemical symbol for sodium is <br> a. na. <br> b. sn. <br> c. s. <br> d. n.
    9·1 answer
  • Which pair below describes isotopes of the same element?
    8·2 answers
  • The photo shows an old-fashloned mercury thermometer. Mercury is a liquid metal that expands when It Is heated. Mercury Narrow t
    9·2 answers
  • How many grams of helium are equal to 15 moles of methane (CH4)?
    7·1 answer
  • Smart people<br><br> Is water wet?<br><br> I need to know
    5·2 answers
  • Nuclei<br> 10. Nuclear power plants release energy by
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!