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
cestrela7 [59]
3 years ago
8

Consider these chemical equations. N2(g) + 3H2(g) → 2NH3(g) C(s) + 2H2(g) → CH4(g) 4H2(g) + 2C(s) + N2(g) → 2HCN(g) + 3H2(g) Whi

ch equation(s) do you need to reverse in order to calculate the overall equation for the formation of HCN and H2 from NH3 and CH4? Check all that apply. N2(g) + 3H2(g) mr003-1.jpg 2NH3(g) C(s) + 2H2(g) mr003-2.jpg CH4(g) 4H2(g) + 2C(s) + N2(g) mr003-3.jpg 2HCN(g) + 3H2(g) What must you do before adding the equations?
Chemistry
2 answers:
DaniilM [7]3 years ago
8 0
The first and the second one .  . . . . . . . . . 
joja [24]3 years ago
3 0
Multiply the second equation by 2
You might be interested in
Which of the following statements about the ordinary IR spectroscopic regions are TRUE? 1. In general, the IR FUNDAMENTAL region
yaroslaw [1]

Answer: the statements in 1 and 2 are true of IR spectroscopic region.

1. In general, the IR FUNDAMENTAL region has a longer wavelength region than the region we call the ultraviolet (uv) region.

2. We can sense some of the frequencies of the FUNDAMENTAL region of the IR as heat

Explanation:

IR has energy value between 10^-5eV - 10^-2eVwhile

UV has energy value of 4eV - 300eV

IR has low photon energy and cannot alter atoms and molecules while UV has sufficient energy to iodize atoms therefore UV has a higher energy band.

Infrared light falls just outside the visible spectrum, beyond the edge of what we can see as red.

5 0
3 years ago
The graph shows the number of beans eaten by a random zocco. How many light red kidney beans were eaten on Day 7? How many dark
Tems11 [23]

Answer:

day 7   50  and day 8  40

Explanation:

3 0
3 years ago
Read 2 more answers
3<br> 3) Write any 4 important of<br> 4 important of measurement <br> Science
kramer

Answer:

A measurement is the action of measuring something, or some amount of stuff. So it is important to measure certain things right, distance, time, and accuracy are all great things to measure. Measurements can also allow us to make desicions based on the outcome of the measurement

7 0
3 years ago
How many protons neutrons and electrons does nitrogen 14 have?
vazorg [7]
Many nitrogen atoms have seven neutrons<span> (14-7 = 7). Some atoms of nitrogen, however, have eight electrons. They are atoms of N-15, an isotope of nitrogen. In a neutral atom, the number of protons must equal the number of electrons.</span>
5 0
3 years ago
@ What is the wavelength of a radio wave having a frequency of 3.75 X 107 Hz?
aniked [119]

Answer:

8 m

Explanation:

3.0 x 10*8 divided by 3.75 x 10*7 = 8 m

6 0
3 years ago
Other questions:
  • If a mineral has a daughter to parent ration of 3:1 (three daughter atoms for every one parent atom), how many half-lives have p
    13·1 answer
  • Which of the following was originally a tenet of Dalton's atomic theory, but had to be revised about a century ago?
    14·1 answer
  • A hydrogen-like ion is an ion containing only one electron. The energies of the electron in a hydrogen-like ion are given by the
    13·2 answers
  • What is a compression?
    14·2 answers
  • Which of the following properly lists the metals in order from decreasing to increasing ease of oxidation?
    6·2 answers
  • The electron cloud of HF is smaller than that of F2, however, HF has a much higher boiling point than F2 has. Which of the follo
    13·1 answer
  • True or false: Sometimes older rocks end up on top of younger rocks.
    7·2 answers
  • Sulfur and fluorine form several different compounds including sulfur hexafluoride and sulfur tetrafluoride. Decomposition of a
    15·1 answer
  • Guys i need help <br> What is the chemical equation for foam fight
    9·2 answers
  • Balance the following reaction, which occurs in acidic solution.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!