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
Tems11 [23]
3 years ago
6

How many different elements are in nine substances

Chemistry
1 answer:
Veronika [31]3 years ago
3 0
You are made of mostly 6 elements: Oxygen, Carbon, Hydrogen, Nitrogen, Calcium, and Phosphorus. Some of these elements combine to form compounds in your body.
You might be interested in
What is the IUPAC name of the following compound? There is a structure for an organic molecule. It has 6 carbons in its chain, a
Aleksandr-060686 [28]

Answer:

The answer to your question is below

Explanation:

Process

1.- Look for the longest chain

2.- Number the carbons of the main chain starting from the corner where the double bond is closer.

3.- Circle the branches

4.- Start naming the number where the branch is and the name of the branch.

5.- Name the main branch with the ending -ene.

                    5-methyl, 1-hexene or 5-methyl, hex-1-ene

See gthe structure below.

4 0
3 years ago
A solar flare may cause charged particles to enter the earth's atmosphere.<br><br><br> true false
svetoff [14.1K]

Answer:

True

Explanation:

This is because the Earths ionisphere was distrubed which makes radio communications.

4 0
2 years ago
Blank measurements are useful for determining buoyancy and identifying relationships between substances.
ozzi
I choose the letter c witch is density I believe that it’s useful for determining identifying relationships between substances
5 0
2 years ago
500 mL of He at 300 K is heated to 450 K. Find V2
ruslelena [56]

Answer:

V2 = 0.75 L

Explanation:

assumin ideal gas:

  • PV = RTn

∴ T1 = 300K

∴ V1 = 0.500 L

∴ T2 = 450 K

⇒ V2 = ?

assuming P, n constant:

⇒ PV1 = RT1n

⇒ V1/T1 = Rn/P = K..........(1)

⇒ V2/T2 = RN/P = K..........(2)

(1) = (2):

⇒ V1/T1 = V2/T2

⇒ V2 = (V1/T1)T2

⇒ V2 = (0.500 L/300 K)(450 K)

⇒ V2 = 0.75 L

8 0
3 years ago
I WILL GIVE BRAINLIEST!! BE FAST PLEASE ANSWER AND EXTRA POINTS!!!!!!<br> 15 POINTSS
Ivanshal [37]

Answer:

B

Explanation:

3 0
4 years ago
Read 2 more answers
Other questions:
  • Hydrazine (N2H4), a rocket fuel , reacts with oxygen to form nitrogen gas and water vapor. The reaction is represented with the
    6·1 answer
  • What mass of manganese(II) chloride must react with sulfuric acid to release 48.5 mL of hydrogen chloride gas at STP? MnCl2(s)+H
    11·1 answer
  • What is the difference between measured and accepted value? And how are these values used to determine the precision of these va
    9·2 answers
  • Convert 7.83×1024 atoms of carbon to moles of carbon
    5·2 answers
  • The decomposition of mercury (ii) oxide at high temperature, is it an endothermic or exothermic process? Write a chemical reacti
    10·2 answers
  • How does water’s high specific heat capacity affect large lakes?
    9·2 answers
  • describe why emission spectroscopy is a helpful tool in determining the identity of materials in fields like forensic science
    8·1 answer
  • The pressure on 30 milliliters of an ideal gas increases from
    14·1 answer
  • Use the pie section above to answer this question.
    5·1 answer
  • What mass of aluminum must react with 100 g of copper (ii) phosphate? (10g)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!