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
Tatiana [17]
3 years ago
12

Coal, which is primarily carbon, can be converted to natural gas, primarily ch4, by the exothermic reaction:

Chemistry
1 answer:
Leno4ka [110]3 years ago
5 0
Unfortunately, your question is incomplete So, according to the attached picture of the complete question we will explain the answer:
according to the reaction equation:
C(s) + 2H2(g) ↔ CH4(g) ΔH° = -74.6KJ 
So the true answer will be D i and ii

- as by adding more C and it is a reactant so the reaction will go rightward to the product to decrease the C to achieve the equilibrium again, the movement of the reaction towards the products will make the CH4 increase

- and by decreasing the Heat and the heat here is as a product as the reaction is exothermic so by decreasing the heat the reaction will go toward the products to increase the heat and achieve the equilibrium again, and that also makes the CH4 increase as it is a product.
So the true answer is D i and ii as the attached photo 

You might be interested in
1 Which of the following is an example of periodicity?
Mademuasel [1]

Answer:

A:UNDERSTANDING CONCEPTS PART A 13) Which of the following is an example of periodicity? A) eating breakfast

8 0
3 years ago
How many bromine atoms are present in 37.9 g of CH2Br2?
VARVARA [1.3K]

Answer:

The answer to your question is: 6.55 x 10 ²³ atoms of Br

Explanation:

CH2Br2 = 37.9 g

MW CH2Br2 = (12 x 1) + (2 x 1) + (80 x 2) = 174 g

                   174 g of CH2Br2 ------------------  160 g of Br2

                   37.9 g of CH2Br2   ---------------     x

                x = 37.9 x 160/174 = 34.85 g of Br

                      1 mol of Br -----------------   160 g Br2

                         x              ----------------    174 g Be2

               x = 174 x 1 /160 = 1.088 mol of Br2

                1 mol of Br -----------------  6.023 x 10 ²³ atoms

            1.088 mol of Br -------------    x

                    x = 1.088 x 6.023 x 10 ²³ / 1 = 6.55 x 10 ²³ atoms

4 0
3 years ago
What is an electron configuration?
Ulleksa [173]

In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals. For example, the electron configuration of the neon atom is 1s² 2s² 2p⁶, using the notation explained below.

4 0
3 years ago
Which formula contains two non- metals?<br><br>BaO<br>NaBr<br>KI<br>Si O2​
Yakvenalex [24]
SiO2 is the only possible choice because the other formulas contain metals. how do we know this? because the other formulas contain elements located on the left of the “staircase” on the periodic table that separates metals from non-metals.
6 0
3 years ago
Is C2S6 ionic or covalent
Stels [109]

Answer:

covalent

Explanation:

C2S6 is a compound made of 2 nonmetals which makes it covalent

Hope this helps! Plz mark brainliest

8 0
3 years ago
Other questions:
  • A liquid has a density of 1g/mL. If you have 50mL of the liquid, what would its mass be?
    8·1 answer
  • What is the net charge of the peptide arg-ala-phe-leu at ph 8?
    14·1 answer
  • The rate constant for this first‑order reaction is
    15·1 answer
  • 45.5 g of ice is heated from -25 degrees celsius to 150 degrees celcius. Calculate the total amount of heat required for the ent
    12·1 answer
  • A Review Constants Periodic Table
    6·1 answer
  • How Non-Polar Molecule disolves in Non-Polar Molecule?
    8·1 answer
  • Which is the most reactive metal and why?​
    7·1 answer
  • 1s22s22p63s23p64s13d10 which element is this
    12·1 answer
  • A gas occupies 4.0 L of air at 1.0 atm pressure and 30.0°C. If the gas occupies 6.0 L of air at 37.0°C, what is the pressure of
    14·1 answer
  • Please help, I’ll mark your answer as brainliest
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!