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
Can someone best explain why a washing machine represents an open system
Effectus [21]
Open system is a system in which mass or energy can be lost to or gained from the environment. In this case, water and power come from external sources best explains why a washing machine would be considered an open system.  
6 0
3 years ago
Read 2 more answers
Which of the following two conditions will favor a spontaneous reaction?
Alexxx [7]

Answer:

option A

an increase in entropy and a decrease in enthalpy

pls mark brainliest

8 0
3 years ago
Identify the factors that govern the speed and direction of a reaction. Check all that apply.
Fiesta28 [93]

Answer: option B and option C

Explanation:

4 0
3 years ago
The diagram shows Niels Bohr’s model of an atom.
PtichkaEL [24]

Answer:

Energy is absorbed, and an emission line is produced.

Explanation:

Electrons are present and revolving continuously in the orbits that are present around the nucleus. The energy of electron are fixed and unable to move to other orbits due to the strong attractive force of the proton which is present in the nucleus of the atom. If the electron wants to jump from the first energy level to the second energy level, so the electron has to absorb enough energy which can overcome the attractive force of proton.

4 0
3 years ago
Read 2 more answers
What is the identity of the atom shown?
posledela

Answer:

A

Explanation:

Argon has 17 protons and 18 neutron

atomic number is the same as the protons number.

3 0
3 years ago
Read 2 more answers
Other questions:
  • I NEED HELP FAST!!!!! Can you tell me about examples of physical and chemical compounds of matter??? I have a DBA in a few minut
    15·1 answer
  • Consider hydrogen atom in an excited state of 3s1. What is the energy of its electron
    13·1 answer
  • Answer number six please
    15·2 answers
  • 2. How many moles of hydrogen atoms are there in 154 mL of 0.18 M H2SO4? Write your
    12·1 answer
  • A student has two solutions of a substance. Solution-1: 25M, 400mL, and Solution-2: 30M, 300 ml. What is the molarity of the fin
    5·1 answer
  • Determine whether a closed spiral notebook with no writing would be chiral or achiral.
    11·1 answer
  • Which element(s) are not balanced in this equation?
    15·2 answers
  • A 500.0 g sample of aluminium, I initially at 25.0 degrees, absorbs heat from its surroundings and reaches a final temperature o
    5·1 answer
  • An ideal gas has a volume of 18.25 L at a temperature of 15.9 °C. The temperature of the gas is raised to 40.7 °C while the numb
    15·2 answers
  • How many atoms are present in 2.1 moles of Fe
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!