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
Dima020 [189]
3 years ago
7

Carbon burns in the presence of oxygen to give carbon dioxide. Which chemical equation describes this reaction?

Chemistry
2 answers:
Vlad1618 [11]3 years ago
8 0

Answer: option B.

carbon + oxygen → carbon dioxide

Explanation:

arlik [135]3 years ago
7 0
Option b
Carbon+ oxygen-> carbon dioxide
You might be interested in
I need to write the safety for my sci project. My project was me seeing how long my dog plays with each toy. If you don't know w
SSSSS [86.1K]

You could say that you played outside so you or your dog didn't hit anything important/fragile.

You could say that you played with his/her favourite soft toys, so that you didn't hurt anyone or again break anything.

You can say that you did your tests in a safe place where no one could get hurt.

Hopefully this helps, let me know if you need more answers.

5 0
3 years ago
A bike tire reads a pressure of 13.2 psi. What is the
BaLLatris [955]

Answer:

0.89821 atm

Explanation:

Psi and atm are units of pressure.

Psi stands for pound force per square inch.

While atm stands for atmosphere.

In order to convert the psi to atm we would divide the given value 14.696.

Given value = 13.2 psi

In atm:

13.2 / 14.696 = 0.89821 atm

7 0
3 years ago
Find the boiling point?<br> 100. g of C2H6O2 dissolved in 200 g of H2O?
aleksklad [387]

Answer:

The correct answer is 104.13ºC

Explanation:

When a solute is added to a solvent, the boiling point of the solvent (Tb) increases. That is a colligative property. The increment in Tb (ΔTb)  is given by the following expression:

ΔTb = Tb - Tbº= Kb x m

Where Tb and Tbº are the boiling points of the solvent in solution and pure, respectively; Kb is a constant and m is the molality of the solution.

In this problem, the solvent is water (H₂O). It is well known that water has a boiling point of 100ºC (Tb). The value of Kb for water is 0.512ºC/m. So, we have to calculate the molality of the solution (m):

m = moles of solute/Kg solvent

The solute is C₂H₆O₂ and we have to calculate the number of moles of this component by dividing the mass into the molecular weight (Mw):

Mw(C₂H₆O₂)= (2 x 12 g/mol) + (6 x 1 g/mol) + (2 x 16 g/mol)= 62 g/mol

⇒ moles of C₂H₆O₂ = mass/Mw = 100 g/(62 g/mol) = 1.613 moles

Now, we need the mass of solvent (H₂O) in kilograms, so we divide the grams into 1000:

200 g x 1 kg/1000 g = 0.2 kg

Finally, we calculate the molality as follows:

m = 1.613 moles of C₂H₆O₂/0.2 kg = 8.06 moles/kg = 8.06 m

The increment in the boiling point will be:

ΔTb = Kb x m = 0.512ºC/m x 8.06 m = 4.13ºC

So, the boiling point of pure water (Tbº=100ºC) will increase in 4.13ºC:

Tb= 100ºC+4.12ºC= 104.13ºC

5 0
3 years ago
Which radiation can only be stopped by thick layers of dense metal? (2 points)
AfilCa [17]
Gamma rays have the highest penetrating power so it can only be stopped by thick layers of dense metal. :)
5 0
3 years ago
Read 2 more answers
Can anyone help me please this is due and i need help someone check over my answers
Yuliya22 [10]
4.) D
10.) C
12.) D
13.) D
14.) D
15.) D
5 0
3 years ago
Other questions:
  • What is the molar mass of (NH4)2O? Explain how you calculated this value.
    14·1 answer
  • How many grams of o2 are required to produce 7.00 g of co2?
    15·1 answer
  • In Part A, you found the amount of product (2.60 mol P2O5 ) formed from the given amount of phosphorus and excess oxygen. In Par
    11·1 answer
  • In which pair do the particles have approximately the same mass?
    6·1 answer
  • Three gases found in Earth's atmosphere are carbon dioxide, nitrogen and oxygen. What is their order of abundance from greatest
    7·2 answers
  • A certain metal M forms a soluble sulfate salt M2SO4. Suppose the left half cell of a galvanic cell apparatus is filled with a 5
    5·1 answer
  • Anyone wanna start a conversation
    8·2 answers
  • Aquien le elimina las respuestas
    15·1 answer
  • In any experiment the accuracy of the data and experiment can be improved. What are some things that can be done to improve data
    14·2 answers
  • Use you observation to determine which polymorph is in the customer’s returned chocolate sample.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!