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
NISA [10]
3 years ago
11

What is the oxidation number of each phosphorus atom in H4P2O7

Chemistry
1 answer:
nekit [7.7K]3 years ago
7 0

Answer:

+5

Explanation:

The oxidation number of phosphorus can be obtained as follows:

H4P2O7 = 0

4(+1) + 2P + 7(—2) = 0

4 + 2P —14 = 0

Collect like terms

2P = 14 — 4

2P = 10

Divide both side by 2

P = 10/2

P = +5

The oxidation number of phosphorus is +5

You might be interested in
You buy butter $3.31 a pound one portion of onion compote requires 1.7 oz of butter how much does the butter for one portion cos
Lorico [155]

Answer:

The butter for one portion cost is $0.35.

Explanation:

5 0
2 years ago
Draw an energy flow diagram showing the energy transformation from one form to another.
exis [7]
This is the flow! your answer can be found online

8 0
3 years ago
Find the empirical and the molecular formula of acetylene gas composed of 92.26 percent carbon and 7.74 percent hydrogen
Hitman42 [59]

Answer:

CH

Explanation:

92.26% = 92.26 g

7.74% = 7.74 g

carbon is 92.26 x 1 mole/12.011 = 7.68

hydrogen is 7.74 x 1 mole/1.008 = 7.68

carbon 7.68 ÷ hydrogen 7.68 = 1

so 1 is your subscript for both carbon and hydrogen

6 0
3 years ago
If crystal growth does not start on its own after the solution in the flask returns to room temperature, identify the best ways
deff fn [24]

Answer: The best way to promote the process are:

--> Add a bit of solid as a seed crystal.

--> Scratch the bottom of the flask gently with a stirring rod.

Explanation:

A crystal growth is seen is SUPERSATURATED solutions which contains more solute than it can normally dissolve at that given temperature. It is usually very UNSTABLE and capable of releasing the excess solute if disturbed, either by shaking or seeding with a tiny crystals.

Crystallization can be used for the separation of two salts with different solubilities as well as for purification of a soluble salt that contains insoluble solid impurities. Recrystallization improves the validity of the process. Crystallization can be initiated by:

--> Scratching the bottom of the flask gently with a stirring rod: scratching initiates crystallization by providing energy from the high-frequency vibrations.

--> Adding a bit of solid as a seed crystal: Seed crystals create a nucleation site where crystals can begin growth.

7 0
3 years ago
While soils are an important part of the global carbon cycle, they are not a part of the nitrogen and sulfur cycles.
Vladimir79 [104]

The correct answer is - False.

The soils are part of most of the major cycles that take place on the Earth, mainly because they are in touch with the other spheres. The carbon dioxide, as well as the nitrogen and the sulfur cycles too, end up in the soil in more cases than not during their cycles. While some are formed in it and than released, like the sulfur, the carbon mostly gets in it though the roots of the plants, as well as the decomposing organisms, and the nitrogen ends up in the soil with the water.

The soil is one of the most important pieces in the cycles of most of the gases on Earth, and without it, some will not even be possible.

7 0
3 years ago
Other questions:
  • When determining rock composition, describe the test that can be used to determine whether it contains the mineral calcite.
    12·2 answers
  • I need help with this problem
    13·1 answer
  • The rate of chemical weathering increases with this?
    6·2 answers
  • The energy that is transferred due to a temperature difference
    15·1 answer
  • Oxygen's electronegativity value is between those of sulfur and fluorine. Which statement correctly describes the relationship b
    7·1 answer
  • Write a balanced equation for the neutralization of potassium hydroxide by phosphoric acid. Use the smallest possible integer co
    10·1 answer
  • The label on a box of granola indicates that it contains 13 grams of added sugars, and 240 Calories per serving. What percent of
    15·1 answer
  • How many subshells are in the n =4 shell?
    7·1 answer
  • help please this is a major grade (my birthday is next week) if i dont pass i wont celebrate my birthday please help!
    8·1 answer
  • Look back at parts A and B to compare the properties of the unknown elements with the properties of the known
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!