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
gogolik [260]
3 years ago
14

Is phosphorus a pure substance or mixture

Chemistry
2 answers:
nataly862011 [7]3 years ago
8 0

its mixture

Explanation:

phosphorus atoms has 15 electrons and 15 protons with valence 5 electron in outer shell and is highly reactive element

Goshia [24]3 years ago
3 0

Answer: it is Not a pure substance because it consists of sodium so it would be a mixture because it contains sodium

Explanation:

plz mark brainliest

You might be interested in
How was island hopping a change in strategy for the us military?
Otrada [13]
Well, it was to capture Japanese controlled islands until the Japanese came into range of the American Bombers, which was different from them going after the Japanese and invading the islands.
7 0
3 years ago
Food chains always begin with what type of organism? Why?
Inessa05 [86]
The food chain always begins with a sun without it there would be no food chain... hope this helped!
6 0
2 years ago
What part of the leaf is responsible for absorbing the sun’s energy?
never [62]

Answer:chlorophyll

Explanation:

3 0
2 years ago
Can u please help me I don't understand it and if I don't do it my teacher will get really mad at me pleas
Nana76 [90]

Physical Change: It is a type of change in which matter changes its physical state like shape, size but is not transformed into another substance. It is usually a reversible process.

Chemical Change: It is a type of change in which the rearrangement of atoms of one or more than one substance is involved.  and it changes its chemical composition that is there is a formation of at least one new substance. It is usually an irreversible process.

Now, keeping in mind the definitions, we can easily classify the examples in the question as physical or chemical change.

7. Chemical Change

8. Chemical Change

9. Physical Change

10. Chemical Change

11. Physical Change

12. Physical Change

13. Chemical Change

14. Physical Change

15. Chemical Change

16. Physical Change

17. Chemical Change

18. Chemical Change

19. Physical Change

20. Physical Change

21. Chemical Change

22. Physical Change

23. Chemical Change

24. Chemical Change

25. Physical Change

6 0
3 years ago
22.5 g of silver nitrate reacts with excess magnesium bromide, determine the mass
Setler [38]

Answer:

9.82 g of Mg(NO₃)₂

Explanation:

Let's determine the reaction:

2AgNO₃  +  MgBr₂  → Mg(NO₃)₂  +  2AgBr

2 moles of nitrate silver reacts with MgBr₂ in order to produce 1 mol of magnesium nitrate and silver bromide.

We determine the moles of AgNO₃

22.5 g . 1mol / 169.87g = 0.132 moles

Ratio is 2:1.

2 moles of silver nitrate can produce 1 mol of magnesium nitrate

Then, our 0.132 moles may produce (0.132 . 1)/ 2 = 0.0662 moles

We convert moles to mass:

0.0662 mol . 148.3 g/ mol = 9.82 g

6 0
2 years ago
Other questions:
  • Identify the primary form of energy in each image
    10·2 answers
  • Enter the net ionic equation, including phases, for the reaction of AgNO3(aq) with K2SO4(aq). Solubility Rules are found here.
    9·1 answer
  • What's the smallest celestial body
    11·1 answer
  • Compared with Earth, the Moon has a surface that is geologically less active. For example
    12·2 answers
  • Consider the cell described below at 287 K: Pb | Pb2+ (1.07 M) || Fe3+ (2.13 M) | Fe Given the standard reduction potentials fou
    6·1 answer
  • Adding energy to an object increases its _____________ .
    9·1 answer
  • What is the product of the reaction between arsenic and oxygen
    11·2 answers
  • Which of the Following Correctly Balances this Equation? _H2+_Cl2 --> _HCl
    11·1 answer
  • 2) You water three sunflower plants with salt water. Each plant receives a different
    13·1 answer
  • What are the ways that energy<br> conversion can occur?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!