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vodomira [7]
3 years ago
7

What chemical reaction type is Pb + 2 H3PO4 --> 3 H2 + Pb3(PO4)2

Chemistry
1 answer:
Law Incorporation [45]3 years ago
6 0

Answer:

single displacement reaction

Explanation:

it is because an atom(Pb) dispalces another atom(H) in H3PI4

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tetraphosphorous hexaoxide is formed by the reaction of phosphorous (p4) with oxygen gas. if the reaction of 75.3 g of p4 with 3
True [87]

the Percentage yield for the reaction = 48.8%

What is Percentage yield ?

The % ratio of the theoretical yield to the actual yield is known as the percent yield. It is calculated as the theoretical yield multiplied by 100% divided by the experimental yield. The percent yield is 100% if the theoretical and actual yields are equal. Because the real yield is frequently lower than the theoretical value, percent yield is typically lower than 100%. This may be due to incomplete or conflicting reactions or sample loss during recovery. If the percent yield is more than 100%, more sample than expected was retrieved from the reaction.

4 P + 3 O2 = P4O6

moles P = 75.3 g / 30.9738 g/mol= 2.43

moles O2 required = 2.43 x 3 / 4=1.82

actual moles O2 = 38.7 g /32 g/mol=1.21 so O2 is the limiting reactant

theoretical moles P4O6 = 1.21 / 3=0.403

theoretical mass P4O6 = 0.403 mol x 219.895 g/mol=88.6 g

% yield = 43.3 x 100/ 88.6 = 48.8 %

the Percentage yield for the reaction = 48.8%

To know about Percentage yield from the link

brainly.com/question/8638404

#SPJ4

4 0
1 year ago
Ammonia, NH3, acts as an Arrhenius base because it Ammonia, N H 3, acts as an Arrhenius base because it blank the concentration
sergejj [24]

Answer:

Ammonia acts as an Arrhenius base because it increases the concentration of OH⁻ in aqueous solution.

Explanation:

The acid-base theory of Arrhenius explains that in aqueous solutions both acid and base dissociate, releasing ions in the solution. The acid release the ion H⁺ and some anion, and the base release the ion OH⁻ and some cation.

In water, the reaction of ammonia is:

NH₃ + H₂O ⇄ NH₄⁺ + OH⁻

Because of that, ammonia is an Arrhenius base.

3 0
3 years ago
A wind turbine generating electricity involves electromagnetic energy. thermal energy. solar energy. mechanical energy. chemical
Vaselesa [24]
<h2>A wind turbine generating electricity involves electromagnetic energy. thermal energy. solar energy. mechanical energy. chemical energy. nuclear energy.</h2><h2>ans: electromagnetic energy, thermal energy, solar energy, and mechanical energy.</h2>

Explanation:

Wind mill

It consist of shaft pole and blades that can rotate .

It converts wind energy into electrical energy .

The shaft of wind mill is connected to shaft of armature of generator .

When the fast moving wind rotates the blades of windmill its shaft rotates, armature rotates hence electricity is produced which is further used for various purposes .  

Advantage of using wing energy

it is natural renewable resource  

It is eco friendly  

Disadvantage :

1. It cant be established everywhere  

2. It requires large area  

3. It is an expensive project  

4. Wind dosen't blow all the time so win energy cant be produced every time  

5. Minimum speed of wind required is 15km per hour .

So, the wind turbine generating electricity involves mechanical energy of wing and blades .

7 0
4 years ago
Force can be added together
Zepler [3.9K]
Forces can be added only when they both are going in the same direction as 2n +2n = 4n of force in the same direction if they are 2 facing forces they would <span>have had to be subtracted, which ever force is greater that will be the momentum of the force.


Hope this helps.</span>
7 0
3 years ago
What is the name of the particles that make up all matter?
konstantin123 [22]

What is the name of the particles that make up all matter?

<u>Matter is made up of atoms and molecules. </u>

3 0
3 years ago
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