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
tangare [24]
3 years ago
15

20cm³ of methane gas was burnt in 20cm³ of oxygen. write a balanced chemical equation for the reaction and determine which of th

e gases were in excess​
Chemistry
1 answer:
solniwko [45]3 years ago
7 0

Answer:

CH4 +O2 => CO2 + 2 H2O

None were in excess

Explanation:

Equation for the reaction is,

CH4 + O2 =>CO2 +2 H2O

No of moles of CH4 = (20 /1000)/24 =0.02 /24 = 0.00083

No of moles of O2 =20 /24000 = 0.0083

CH4 : O2 = 1:1

THEREFORE

None of the gases were in excess.

You might be interested in
This type of chemist understands the structure of living systems and, in turn, their
julia-pushkina [17]

A Biochemist is a type of chemist understands the structure of living systems and, in turn, their functions and ways to control them.

<h3>What is the chemistry of living systems called?</h3>

The chemistry of living system is known as Biochemistry.

Biochemistry is a study of the chemical changes that occur in living organisms.

Scientists that study biochemistry are called Biochemists.

Biochemistry studies the structure and function of biological molecules such as carbohydrates, lipids, proteins, e.t.c., as well the chemical reaction they undergo.

Biochemistry also studies the energy changes that occur in living systems.

In conclusion, the chemistry of living systems is called Biochemistry.

Learn more about biochemistry at: brainly.com/question/12273783

#SPJ1

3 0
2 years ago
PLEASE EXPLAIN CORRECTLY! THX=)
tankabanditka [31]
A way to explain it is that back then all the continents were together but soon after drifted apart the were in the same place sort of put they drifted apart so that's sorta what happened. Hope that helps a little
8 0
3 years ago
Y'all what about this one
Virty [35]

Answer:

A=8, B=7,C=N

D=26, E=30, F =Fe

4 0
3 years ago
WILL GIVE BRAINLIEST! Explain how a pure metal is held together. Include a definition of a metallic bond in your explanation. Pl
vazorg [7]

Explanation:

A chemical bond which is formed in between positively charged atoms when there is sharing of free electrons in a lattice of cations is known as a metallic bond.

In a pure metal, atoms are surrounded by free moving valence electrons which move from one part of metal to another.

Thus, we can conclude that pure metals are held together by metallic bonds due to attraction between mobile valence electrons and positively charged metal ions.


7 0
3 years ago
Read 2 more answers
When propane (C3H8) is burned in air (O2), it completely combusts and produces water (H2O) and carbon dioxide (CO2). How many mo
Damm [24]

Answer:

20 mol

Explanation:

First, balance the chemical reaction

C3H8 + 5O2 --> 4H2O + 3CO2

Using the mole ratio, we can multiply the moles of propane by 4 to find the moles of H2O.

5 × 4= 20

20 mol

6 0
3 years ago
Other questions:
  • What is the pOH of a<br> 5.6 x 10-5 M solution of cesium<br> hydroxide (CsOH)?
    9·1 answer
  • Eva is performing an experiment to determine which type of disinfectant kills the most bacteria. She has six plates of the same
    11·2 answers
  • Cylinder with a mass of 12g has a radius measuring 2cm and height of 6cm what is its density
    14·1 answer
  • Marco has a length of copper wire that he knows is 435 cm long. How many meters long is his wire?
    10·1 answer
  • You have a solution suspected to contain copper(II) ions, barium ions, or iron ions. Which of the following solutions might be a
    13·1 answer
  • A golden nugget displaces 89.60 mL of water when submerged. If the density of gold is 19.32 g/cm² what is the mass of the nugget
    14·1 answer
  • Highlight the basic points in Lewis and Langmuir theory of electrovalency
    6·1 answer
  • If the [H+] in a solution is 1 x 10^-1 mol/L, what is the [OH-]? Show your work, please i need help
    14·1 answer
  • a sample gas is in the rigid cylinder with a movable piston the pressure of the gas is kept constant if the kelvin temperature o
    14·1 answer
  • A car traveling 65 km/h south passes another car accelerating to 80 km/h south in 8 seconds. What is the car acceleration?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!