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
Stolb23 [73]
3 years ago
15

If a log is burning in a a fireplace and the amount of oxygen reaching the log is decreased what happens

Chemistry
1 answer:
yKpoI14uk [10]3 years ago
3 0
The wood is using the oxygen for fuel
You might be interested in
What is the name for CrN:
Scilla [17]
Chromium nitride


Chromium nitride is a chemical compound of chromium and nitrogen with the formula CrN.
4 0
3 years ago
Read 2 more answers
What is the molarity of a solution that contains 87.75g of NaCI in 500.ml of solution
Brut [27]

Answer:

M = 3.0 mol/L.

Explanation:

  • We can calculate the molarity of a solution using the relation:

<em>M = (mass x 1000) / (molar mass x V)</em>

  • M is the molarity "number of moles of solute per 1.0 L of the solution.
  • mass is the mass of the solute (g) (m = 87.75 g of NaCl).
  • molar mass of NaCl = 58.44 g/mol.
  • V is the volume of the solution (ml) (V = 500.0 ml).

∴ M = (mass x 1000) / (molar mass x V) = (87.75 g x 1000) / (58.44 g/mol x 500.0 ml) = 3.0 mol/L.

6 0
3 years ago
Suppose you have 100 grams of radioactive plutonium-239 with a half-life of 24,000 years. how many grams of plutonium-239 will r
Alexandra [31]

To solve this problem, let us first calculate for the rate constant k using the half life formula:

t1/2 = ln 2 / k

where t1/2 = half life period = 24,000 years, therefore k is:

k = ln 2 / 24,000

k = 2.89 x 10^-5 / yr

 

Now we use the rate equation:

A = Ao e^(-k t)

where,

A = mass of Plutonium-239 after number of years

Ao = initial mass of Plutonium-239

t = number of years

 

A. t = 12,000 years, find A

A = 100g e^(- 2.89 x 10^-5 * 12,000)

A = 70.7 g

 

B. t = 24,000 years, find A

A = 100g e^(- 2.89 x 10^-5 * 24,000)

A = 50 g

 

C. t = 96,000 years, find A

A = 100g e^(- 2.89 x 10^-5 * 96,000)

<span>A = 6.24 g</span>

5 0
2 years ago
Balance the combustion eqation; __C5H + __O2 ---&gt; __CO2+__H2O
stira [4]
This equation C5H + O2 ---> CO2 + H2O has a mistake.

C5H is wrong. You missed the subscript of H.

I will do it for you assuming some subscript to show you the procedure, but you have to use the right equation to get the right balanced equation.

Assuming the tha combustion equation is C5H12 + O2 ---> CO2 + H2O

First you need to  balance C, so you put a 5 before CO2 and get

C5H12 + O2 ---> 5CO2 + H2O

Now you count the hydrogens: 12 on the left and 2 on the right. So put a 6 before H2O and get:

C5H12 + O2 ---> 5CO2 + 6H2O

Now count the oxygens: 2 on the left and 16 on the right, so put an 8 on before O2:

=> C5H12 + 8O2 ---> 5CO2 + 6H2O.

You can verify that the equation is balanced
8 0
2 years ago
Which of the following is the balanced equation for the
NNADVOKAT [17]
A.) is the answer =)
6 0
3 years ago
Other questions:
  • 6. How do the two main classifications of energy resources differ?
    11·1 answer
  • A 1.0 m solution of a compound with 2 ionizable groups (pka's = 6.2 and 9.5; 100 ml total) has a ph of 6.8. what are the concent
    9·1 answer
  • Nuclear fusion is the process used to generate electricity in nuclear power plants. is the process in which a large nucleus spon
    5·2 answers
  • What would happen if all the cordgrass was removed from the coast of South Carolina? pls help quickly
    9·1 answer
  • If a bowing ball hits a wall with a force of 6 N, the wall exerts a force of ____ back on the bowing ball
    6·1 answer
  • Ali says the climate of a town is rainy because it is raining outside today. Is she correct? In one or two sentences, explain wh
    8·1 answer
  • A chemist must prepare 0.200 L of aqueous silver nitrate working solution. He'll do this by pouring out some aqueous silver nitr
    11·1 answer
  • Please help <br> Show your workings
    8·1 answer
  • 4. What is the SI unit for mass
    15·2 answers
  • For a concave mirror, incident light beams through C will reflect:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!