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
DaniilM [7]
3 years ago
11

Ammonia can be made by reaction of water with magnesium nitride: __ Mg3N2(s) + __ H2O(l) → __ Mg(OH)2(s) + __ NH3(g) When the eq

uation is properly balanced, the sum of the coefficients is
Chemistry
1 answer:
Brut [27]3 years ago
5 0

Answer:

Mg3N2(s) + 6H2O(l) → 3Mg(OH)2(s) + 2NH3(g)

Explanation:

Step 1: Data given

ammonia = NH3

water = H2O

magnesium nitride = Mg3N2

Step 2: The unbalanced equation

Mg3N2(s) + H2O(l) → Mg(OH)2(s) + NH3(g)

Step 3: Balancing the equation

On the left side we have 3x Mg (in Mg3N2), on the right side we have 1x Mg (in Mg(OH)2).

To balance the amount of Mg, we have to multiply Mg(OH)2 by 3

Mg3N2(s) + H2O(l) → 3Mg(OH)2(s) + NH3(g)

On the left side we have 2x N (in Mg3N2), on the right side we have 1x N (in NH3). To balance the amount of N, we have to multiply NH3 by 2

Mg3N2(s) + H2O(l) → 3Mg(OH)2(s) + 2NH3(g)

On the left side we have 2x H (in H2O), on the right side we have 12x H ( 6x in Mg(OH)2 and 6x in NH3). To balance the amount of H we have to multiply H2O (on the left side), by 6.

Now the equation is balanced.

Mg3N2(s) + 6H2O(l) → 3Mg(OH)2(s) + 2NH3(g)

You might be interested in
We are trying to build a good model of the _____________ that are happening on the tectonic plates under us.
Arturiano [62]

Answer:

scientists can only calculate the probability that a significant earthquake will occur in a specific area within a certain number of years.

Explanation:

i'm in the 7th grade

8 0
3 years ago
What is the percent by mass of water in Na S04.10H20?
dalvyx [7]

Answer:

                    Percent by mass of water is 56%

Explanation:

                    First of all calculate the mass of hydrated compound as,

Mass of Sodium = Na × 2 = 22.99 × 1 = 45.98 g

Mass of Sulfur = S × 1 = 32.06 × 1 = 32.06 g

Mass of Oxygen = O × 14 = 16 × 14 = 224 g

Mass of Hydrogen = H × 20 = 1.01 × 20 = 20.2 g

Mass of Na₂S0₄.10H₂O = 322.24 g

Secondly, calculate mass of water present in hydrated compound. For this one should look for the coefficient present before H₂O in molecular formula of hydrated compound. In this case the coefficient is 10, so the mass of water is...

Mass of water = 10 × 18.02

Mass of water = 180.2 g

Now, we will apply following formula to find percent of water in hydrated compound,

           %H₂O  =  Mass of H₂O / Mass of Hydrated Compound × 100

Putting values,

                                      %H₂O  = 180.2 g / 322.24 g × 100

                                           %H₂O =  55.92 % ≈ 56%

3 0
3 years ago
Please help me and thank you
Alex17521 [72]

Answer:

The physical and chemical properties of the product do not match the properties of the reactant.

Explanation:

Chemical change:

The changes, that occur due to change in the composition of a substance and result in a different compound is known as chemical change.

These changes are irreversible

These changes occur due to chemical reactions

These may not be observed with naked eye

Example:

Combustion of fuel or wood: that oil or wood convert into energy, CO2 and ash in case of wood

Boiling of egg: that change the chemical composition of protein in the egg .

The reaction of Hydrogen and oxygen:

H 2 (g)  + O 2  (g) -------------------------------------> 2H 2O  (l)

The reaction between sugar and oxygen form a product which is different from the reactant that's why it indicate the occurrence of chemical reaction.

While in case of physical changes just state of matter are changed. Properties remain same.

6 0
3 years ago
Please help me with these I'll give 15 points
VLD [36.1K]
1.d
2.g
3.j
4.i
5.c
6.h
7.e
8.b
9.a
10.f
5 0
3 years ago
Read 2 more answers
Please assist me with chemistry assessment
Lera25 [3.4K]

Answer:

I don't know

Explanation:

7 0
1 year ago
Other questions:
  • You add 4.7 gg iron to 27.10 mL of water and observe that the volume of iron and water together is 27.70 mLmL . Calculate the de
    6·1 answer
  • Place the following descriptions in the correct order (1 to 4) to explain how lightning forms.
    5·1 answer
  • In nuclear physics what units are used to measure the radius of an Atom
    10·1 answer
  • An organic compound, X, will react with calcium metal to produce a salt with the empirical formula CaC4H4O4. What could be the i
    15·1 answer
  • In the film, Lavoisier said that the mass gained by the pipe plus the mass of the collected gas "exactly" equaled the lost mass
    8·1 answer
  • The mass of the nails and copper sulfate solution used in this investigation was 250g. The mass of the copper and iron sulfate s
    11·1 answer
  • Gawk gawk? smeat muh meat​
    8·2 answers
  • Please help! How many grams is 4.5 x 10^27
    12·1 answer
  • Commercially, liquid vegetable oils are converted to solid fats such as margarine by : Group of answer choices
    11·1 answer
  • Sand is a particulate in nature​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!