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
yKpoI14uk [10]
3 years ago
12

In the balanced chemical equation for the formation of ammonia (NH3) from

Chemistry
1 answer:
blondinia [14]3 years ago
5 0

Answer:

4

Explanation:

first write down the balanced equation:

N2 + 3 H2 → 2 NH3

when there is no coefficient written, there is actually an "invisible" 1 coefficient. so the coefficient of nitrogen (N2) is 1.

coefficient of N2 is 1 and the coefficient of H2 is 3.

then sum coefficients!

You might be interested in
A reduction reaction involves either the addition of hydrogen or removal of:
Marina CMI [18]

Reduction involves the either the addition of hydrogen and removal of oxygen.

<h3>What is reduction?</h3>

Reduction involves the removal of oxygen.

This implies there is a loss of oxygen in reduction.

This can be represented in the extraction of iron from it ores.

Fe₂O₃ + 3CO →  2Fe + 3CO₂

Reduction is also the addition of hydrogen. This implies it is the gain of hydrogen.

For example

CH₃CHO → CH₃CH₂OH

learn more on reduction here: brainly.com/question/9485345

#SPJ12

4 0
2 years ago
What is the mass of silver in 4.3g AgNO3?
gregori [183]
4.22 grams.
1. First find out how much AgNO3 weighs with one mole (107.87 g Ag + 14.007 g N + 48 g O = 169.89 grams)
2. Find the percent of Ag you have. So, (107.87 g/mol Ag)/(169.89 g/mol AgNO3)= 0.63 * 100 = 63%.
3. If you have 6.7 grams total, you know 63% of it is going to be silver, so just multiply 6.7 grams by .63 and you get 4.22 g Ag
5 0
3 years ago
A car's fuel efficiency is 39.0 miles per gallon. What is its fuel efficiency in kilometers per liter? (1.6094 km=1 mile)(1 gall
MrRa [10]

Answer:

the fuel efficiency in kilometers per liter is 16.561 kilometer per liter

Explanation:

The computation of the full efficiency in kilometers per liter is shown below:

39.0 miles ÷ gallon = (39.0 miles ÷ gallon) × (1.6094 km ÷ 1 miles)  × (1 gallon ÷ 3.79 L)

Now cut the opposite miles and gallons

So, the fuel efficiency would be

= 16.561 kilometers per liter

Hence, the fuel efficiency in kilometers per liter is 16.561 kilometer per liter

5 0
3 years ago
If the mass of a cube with a length of 9.0 cm3 is 12.2 g what is its density
Anvisha [2.4K]

Answer:

The density is 1,35 g/cm3

Explanation:

We use the formula for calculate the density

δ =m/V =12,2g / 9,0 cm3=  1,35 g/cm3

7 0
3 years ago
Read 2 more answers
Describe how you could use two LB/agar plates, some E. coli, and some ampicillin to determine how E. coli cells are affected by
KiRa [710]

Answer:

For this experiment we are going to take plate 1 as the control plate, so, in it there will be just E. coli in LB/agar; in plate 2, we are going to put E. coli in LB/agar and some ampicillin.  Then, we have to wait for the E. coli colonies to form. After a while, the E. coli growth can be compared on both plates and determine if ampicillin affects or not the E. coli colonies.

Explanation:

If the ampicillin affects negatively E. coli colonies, we are going to observe that in plate 1 (control plate) there are E. coli colonies growing, but in plate 2, there is no E. coli colonies or, at least, there is a fewer number of colonies on it. If ampicillin doesn't affect E.coli, plate 1 (control) and plate 2 (ampicillin experiment) are going to be similar in number of colonies.

8 0
3 years ago
Other questions:
  • Transition metal elements are in the "d block" on the periodic table, because the electron configuration of every transition met
    14·2 answers
  • Elements x and y form 2 binary compounds. In the first 14.0 g of x combines with 3.0 g of y. In the second, 7.00 g of x combine
    11·1 answer
  • A proposed mechanism for the reaction of NO2 and CO is
    5·1 answer
  • Are the following statements true or false? (a) Formal charges represent an actual separation of charges. true false (b) ΔH o rx
    5·1 answer
  • If an unbalanced force is applied to an object what my happen to the object
    6·1 answer
  • 3. Sugar solution(sugar + water) is a homogeneous mixture and sugar can be separated from water through evaporation .Comment.
    13·2 answers
  • How many milliliters of a stock solution of 6.20 M HNO3 would you have to use to prepare 0.130 L of 0.470 M HNO3?
    7·1 answer
  • A. 1.4 m<br> B.1.9m<br> C. 2.4m<br> D. 3.6m
    8·1 answer
  • Objects in the universe vary in their composition. Which of the following best describes the composition of a galaxy?
    12·1 answer
  • Which type of energy uses the photoelectric effect?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!