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
ozzi
2 years ago
7

Please help me, I really don't want to fail but I don't know how to do this

Chemistry
1 answer:
Brrunno [24]2 years ago
3 0

Answer:

A)

<u>4, 7, 4, 6</u>

B)

<u>12 moles</u>

Explanation:

NH_{3}(g) + O_{2}(g) \: → NO_{2} + H_{2}O(g)

__↑______↑

8.00 mol | 14.00 mol

________________

NH_{3}(g) + O_{2}(g) \: → NO_{2} + H_{2}O(g)

You can turn this into a system of variables which are solvable.

To do this, create variables for the coefficients of each compound in the reaction respectively.

a(NH_{3}(g)) + b(O_{2}(g)) → \\c(NO_{2}) + d(H_{2}O(g))

Because to be balanced, the count of atoms in each element of the compound correspond to the coefficient of the variable in that compound so that the count of the left (reactant) side is set equal to the right (product) side.

a corresponds to the coefficient of the first compound, b corresponds to the coefficient of the second compound, c corresponds to the coefficient of the third compound, and d corresponds to the coefficient of the fourth compound.

(Reactant = Product)

Reactant: 1a [N] Product: 1c.

Reactant: 3a [H] Product: 2d.

Reactant: 2b [O] Product: 2c + 1d.

Thus the system is:

1a = 1c

3a = 2d

2b = 2c + 1d.

Then just use the substitution methods to solve.

You might be interested in
PLEASE HELLLLOOPLPPPPP
vovangra [49]

Answer:

the answer is d.Class there u go i hope its riht

4 0
3 years ago
Read 2 more answers
Can you help me understand this ? I completely dont understand it ​. i know the tire will burst.
icang [17]

Answer:

There is only one formula to use and we should assume ideal gas. This equation is: PV=nRT. For the following questions manipulate this equation to get the answer.

1. n = PV/RT = (249*1000 Pa)(15.6 L)(1 m^3/1000 L)/(8.314 Pa-m^3/mol-K))(21+273) = 1.59 mol

2. P = nRT/V = (1.59)(8.314)(51+273)/(15.6/1000)(1000) = 274.55 kPa

3. Since the answer in #2 is more than 269 kPa, then the tires will likely burst. 4. Reduce pressure way below the limit 269 kPa.

Explanation:

6 0
3 years ago
Read 2 more answers
Nervous System Freezes the Muscles:controls senses &amp; most body functions .Carries message &amp; information between the brai
Zolol [24]

Controls senses and most body functions .

Carries message and information between the brain & body​

Explanation:

The nervous system helps to control senses, body functions, carries message and information between brain and the body. It consists of the brain, spinal cord and the nerves.

  • Using series of electrical nerve impulses, the nervous system controls the body administration.
  • The brain, spinal cord and nerves directs communications between different parts of the body system.
  • It is divided into two broad categories, the central nervous system which consists of the brain and spinal cord and the peripheral nervous system which is made up the nerves.

Learn more:

neuron brainly.com/question/4662759

nervous system brainly.com/question/8701152

#learnwithBrainly

3 0
3 years ago
Who was the first president of Jamaica ​
Lyrx [107]
Sir William Alexander Clarke Bustamante.

Hope This Helps!
8 0
3 years ago
Read 2 more answers
Volcano help! *I GIVE THANKS!*
Pani-rosa [81]
A volcanic <em>eruption</em> occurs when the <em>pressure </em> in a magma <em>chamber</em> becomes so great it is released like a valve. Magma is released through the volcano's <em>cone</em> in an eruption of <em>lava</em> rocks (bombs) and ash. A volcanic <em>cone</em> develops over centuries as flowing <em>lava</em> from the active volcano <em>cools </em>to form layers of rock. 
Hope this works,
Ahawk
5 0
3 years ago
Other questions:
  • What is the meaning of blood?
    5·1 answer
  • The solubility product constant for mg(oh2(s is 1.2x10^-11 calculate solubility of magnesium hydroxide in mol/l
    5·1 answer
  • The element nickel has five naturally occurring isotopes. Which of the following describes the relationship of these isotopes?
    8·1 answer
  • Use Scientific Notation
    13·1 answer
  • ASAP 1st CORRECT ANSWER GETS BRAINLIEST The diagram shows changes of state between solid, liquid, and gas. The atoms of a substa
    12·2 answers
  • Help me answer this question
    9·2 answers
  • The form in which the chemical energy is stored in cells during photosynthesis
    9·1 answer
  • Question 16
    9·2 answers
  • HELP ME PLZ
    5·1 answer
  • Random poitn drop , get it quickly
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!