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
ZanzabumX [31]
3 years ago
15

I don't know the answer to this question and I need help to figure it out. Thank you for helping!

Chemistry
1 answer:
AlekseyPX3 years ago
7 0

Answer:

P₄O₆ + 2O₂ ⟶ P₄O₁₀

Step-by-step explanation:

We have two equations:  

(I)  P₄ + 3O₂ → P₄O₆  

(II) P₄ + 5O₂ → P₄O₁₀

From these, we must devise the target equation:  

(III) P₄O₆ + __O₂ ⟶ P₄O₁₀

The target equation has P₄O₆ on the left, so you reverse Equation (I).  

(IV) P₄O₆ ⟶ P₄ + 3O₂

The target equation has P₄O₁₀ on the right, so we rewrite Equation (II).  

(II) P₄ + 5O₂ → P₄O₁₀

Now, you add Equations (IV) and (II), <em>cancelling species</em> that appear on opposite sides of the reaction arrows.

We get the target Equation (III):  

(IV)           P₄O₆ ⟶ <u>P₄</u> + <u>3O₂</u>

(II)   <u>P₄</u> +  <u>5</u>2O₂ ⟶ P₄O₁₀

(III)  P₄O₆ + 2O₂ ⟶ P₄O₁₀

You might be interested in
Which statement compares the masses of two subatomic particles
Lelechka [254]
I don't see any options to choose from, but, I have seen this question.

When comparing the masses of two subatomic particles, the mass of a proton is greater than the mass of an electron.


Brainlest answer is always appreciated ( ͡ ͜ʖ ͡ )
4 0
3 years ago
What comes first in a thunderstorm?
Vedmedyk [2.9K]
It's the sound before the lightning because sound travels faster than light.
8 0
3 years ago
Beth’s hygrometer is reading a temperature of 30°C and a relative humidity of 65%. The humidity in the air is how many grams/cub
emmasim [6.3K]
This is asking for the absolute humidity. So if the relative humidity is 65 % and the air temperature is 30 then we need to have in mind the barometric pressure which will be 760. The humidity in the air will be 0.020 kg/m3. In order to know this we calculate it eith the mass of water vapour in a unit volume of air. This is a measure of the actual water vapour content of the air. the for mula would go like this: AH = Mv / V. 
5 0
3 years ago
Explain the role of each factor in chemical weathering (water, acid, and air).
Mama L [17]

Answer: hydrolysis oxidation acidification

Explanation:

they break down, dissolve, or create new elements

7 0
2 years ago
Read 2 more answers
Convert mass to moles for both reactants. (round to 2 significant figures.)
Maslowich

Answer:

Explanation:

Given parameters:

Mass of CuCl₂  = 2.50g

Mass of Al  = 0.50g

Unknown:

Number of moles of CuCl₂ and Al  = ?

Solution:

To solve this problem, we must understand that the number of moles is a fundamental property used in stoichiometry calculations.

         Number of moles  = \frac{mass}{molar mass}

Molar mass of CuCl₂  = 63.6 + 2(35.5) = 134.5g/mole

Molar mass of Al  = 26.98g/mole

          Number of moles of  CuCl₂  = \frac{2.5}{134.5}  = 0.019moles

        Number of moles of Al  = \frac{0.5}{26.98}   = 0.019moles

4 0
3 years ago
Read 2 more answers
Other questions:
  • How does the atmospheric pressure vary with height?
    6·2 answers
  • What's the formula unit for magnesium and sulfur?
    11·2 answers
  • The temperature of a sample of water increases from 30.0 degrees C to 40.0 degrees C as 6540 joules of heat are added. What is t
    9·2 answers
  • A 25.0 ml sample of an hcl solution is titrated with a 0.139 m naoh solution. the equivalence point is reached with 15.4 ml of b
    11·2 answers
  • Which of the following is an oxidation-reduction reaction?
    7·2 answers
  • What is the only substance to have half neutron?​​
    5·1 answer
  • Review Problem 5.040 For each reaction, identify in order the substance oxidized, the substance reduced, the oxidizing agent, an
    7·1 answer
  • Which one of the following is not a mixture?Air,mercury ,milk,cement​
    5·2 answers
  • In a heat engine, 500 J of heat enters the system, and the piston does 300 J of work. What is the final internal (thermal) energ
    5·1 answer
  • Please help me I will mark you as BRAINLIST
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!