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
docker41 [41]
3 years ago
13

SOMEONE help! due today 25 POINTS SEE ATTACHED.

Chemistry
1 answer:
Llana [10]3 years ago
5 0

Answer:

Q4. 2H₂ + O₂ ⟶ 2H₂O; 5; 2

Q5. 24; 30; H₂; 0; 5

Explanation:

Q4.

The equation for the reaction is

2H₂ + O₂ ⟶ 2H₂O

One O₂ molecule reacts with 2H₂ molecules.

\text{No. of O$_{2}$ molecules} = \text{10 H$_{2}$ molecules } \times \dfrac{\text{1 O$_{2}$ molecule }}{\text{2 H$_{2}$ molecules}} = \textbf{5 O$_{\textbf{2}}$ molecules}\\\\\text{Ten hydrogen molecules react with $\textbf{five}$ oxygen molecules.}

We started with seven oxygen molecules. Five of them reacted, so

Two O₂ molecules did not react.

Q5.

Two water molecules form from two hydrogen molecules.

\text{No. of H$_{2}$O molecules} = \text{24 H$_{2}$ molecules } \times \dfrac{\text{2 H$_{2}$O molecules}}{\text{2 H$_{2}$ molecules}} = \textbf{24 H$_{\textbf{2}}$O molecules}Two water molecules form from one oxygen molecule

\text{No. of H$_{2}$O molecules} = \text{15 O$_{2}$ molecules } \times \dfrac{\text{2 H$_{2}$O molecules}}{\text{1 O$_{2}$ molecules}} = \textbf{30 H$_{\textbf{2}}$O molecules}Hydrogen forms fewer water molecules of water, so

Hydrogen is the limiting reactant.

The 24 hydrogen molecules will be completely used up.

The number of hydrogen molecules remaining at the end of the reaction is zero.

They have reacted with 12 O₂ molecules.

The number of O₂ molecules remaining is 17 - 12 = 5

You might be interested in
Chemical reactions chemical equilibrium occurs when the rates of the reactions
TiliK225 [7]
I believe it would be A. Equal out in both directions.
4 0
3 years ago
Please help! <br> Atomic number: 18<br> Mass number: 36
Alisiya [41]
The answer is Argon (Ar).
8 0
3 years ago
Read 2 more answers
Which of the following is an ion with a correct charge ?<br><br> O 4-<br> Ne8+<br> Ca2+<br> Na1-
KengaRu [80]

Answer:

Ca2+ is an ion with a correct charge.

8 0
3 years ago
NEED SOME CHEM HELP!
lawyer [7]

1. 6.5*10^6

2. 5.94*10^-3

3. 1.2*10^2

4. 2.05*10^-2

5. 7.00*10^-1

Sorry if this is incorrect. To my understanding this is the correct answer.

4 0
3 years ago
What is the oxidation number of P in PF6^-
Hitman42 [59]
<span>F can only have oxidation number of -1
The overall compound has an oxidation number of -1
You have 6 Fs, so 6(-1) = -6
charge from F
 X = oxidation number of P
 x + (-6) = -1
solve for
x = +5</span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • Jon is running for city council and wants to campaign on human development goals for his community. Which issue should he use? A
    5·2 answers
  • Which lists the elements in order from least conductive to most conductive?
    5·2 answers
  • During cellular respiration, food (glucose) molecules are broken down into energy in the form of
    13·1 answer
  • Which property of the water molecule causes two water molecules to be attracted to each other?
    11·1 answer
  • How does the muscular and nervous system work together to help maitain homeostasis
    15·2 answers
  • A(n) __________ occurs when the moon enters the umbral shadow of the earth without being entirely immersed in it.
    9·1 answer
  • A 100 kg block of wood was nearly cut into two smaller pieces what is the total mass of all the smaller pieces put together
    5·1 answer
  • What atom is the smallest size? A. Li B. Be C. F D. C
    14·1 answer
  • Which process is happening in the reaction that is shown
    12·1 answer
  • 1. Calculate the average atomic mass of rubidium. Rubidium has two isotopes, 85Rb and 87Rb. 85Rb has an atomic mass of 84.912 am
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!