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
RSB [31]
3 years ago
10

Two moles of phosphoric acid (H3PO4) contain, respectively: "x" moles of hydrogen atoms, "y" moles of phosphorous atoms, "z" mol

es of oxygen atoms.
Options:
a)9,3,12
b)2,2,2
c)3,1,4
d)6,2,8
Chemistry
1 answer:
zlopas [31]3 years ago
3 0

Answer:

d)

Explanation:

in one mole of phosphoric acid you have 3 mol hydrogen, 2 mol phosphorus, and 4 mol oxygen. just multiply everything by 2 and you get 2 mol of phosphoric acid

You might be interested in
When used as pure gases for welding ferrous metals, ____ may produce an erratic arc action, promote undercutting, and result in
kvv77 [185]

Answer:

argon and helium

Explanation:

Argon and Helium is belongs to noble gas. Since novel gases are completely filled outer orbital. therefore they are erratic nature. Hence, noble gas are very stable as it neither except electron nor it denote due to it paired of electronic configuration.

Depending on the materials being welded, these atmospheric gases react with welding area and either it reduces the quality of the weld or make the welding more difficult.

Therefore, to protect welding area from atmospheric gases noble gases which are small in size are used.

Thus, argon and helium are used.

4 0
1 year ago
Help I. have until 11:59 to hand it in ​
Sedbober [7]

This chemical reaction can also be written as

2C2H6+7O2-->4CO2+6H2O

This is a chemical reaction because reactants are converted into products. This is the combustion of ethane where ethane and oxygen have been converted into carbon dioxide and water

8 0
3 years ago
Sodium-potassium pumps are examples of what type of cellular transport?
Dmitrij [34]

Answer:

Active transport

Explanation:

Sodium-potassium pumps are examples of Active type of cellular transport. Sodium potassium pump exchanges sodium ions from potassium ions through the plasma membrane of animal cells.

Whereas Active transport can be defined as movement of ions and molecules across a cell membrane to the region  of higher concentration with the help of enzymes and energy.

5 0
3 years ago
Does the model below represent a mixture or a substance ?
Vikentia [17]

Answer:

substance

Explanation:

A mixture is when two or more <u>different</u> atoms/molecules are together, but not joined.

A substance is when the <u>same </u>atom/molecule is in a group together.

In this example, it is a substance because it is comprised of the same molecule not joined all together. If you wanted a mixture, other colored atoms/molecule (e.g. add green atoms) would change it to this property.

4 0
3 years ago
The __ is the only vein in the body that carries oxygen-rich blood.
Vesnalui [34]

Answer:

pulmonary vein

Explanation:

The pulmonary vein is the only vein in the body that carries oxygen rich blood.

4 0
3 years ago
Other questions:
  • How are biotic factors different from abiotic factors?
    14·1 answer
  • When mixed, solutions of silver nitrate, AgNO3, and sodium sulfate, Na2SO4, form a precipitate of silver sulfate, Ag2SO4. The ba
    5·1 answer
  • What name is given to a metal strip deep into a solution of salt​
    13·1 answer
  • In the presence of CN-, Fe3 forms the complex ion Fe(CN)63-. The equilibrium concentrations of Fe3 and Fe(CN)63- are 8.5 x 10-40
    15·1 answer
  • Answer correctly please
    9·1 answer
  • Force causes
    8·1 answer
  • Magnesium will...
    13·1 answer
  • What is single and double displacement reaction?
    10·1 answer
  • An aluminum block has a volume of 30.0 cm³ and a mass of 81 grams. What is the density of aluminum?
    9·1 answer
  • Which describe beta decay? check all that apply. in beta decay, a proton becomes a neutron and a positron. in beta decay, a neut
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!