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
velikii [3]
3 years ago
15

What is irons number

Chemistry
1 answer:
Kaylis [27]3 years ago
6 0

Answer:

Iron's atomic number is 26

Explanation:

You might be interested in
there is a total of seventeen constitutional isomers for the molecular formula c5h13n. draw the skeletal formula of all three co
MAXImum [283]
Amines are derivatives of Ammonia (NH₃) in which atleast one hydrogen atom is replaced by an alkyl group. Amines are further classifies as;

Primary Amines:
                          In primary amines the nitrogen atom is attached to two hydrogen atoms and one alkyl group.

Secondary Amines:
                             In secondary amines the nitrogen atom is attached to two alkyl groups and one hydrogen atom.

Tertiary Amines:
                         In tertiary amines the nitrogen atom is attached to three alkyl groups, hence it has no hydrogen atom.

Below are three isomers of tertiary amines with molecular formula C₅H₁₃N.

5 0
3 years ago
Can somebody help me, please!
zavuch27 [327]

Answer:

Rubidium-85=61.2

Rubidium-87=24.36

Atomic Mass=85.56 amu

Explanation:

To find the atomic mass, we must multiply the masses of the isotope by the percent abundance, then add.

<u>Rubidium-85 </u>

This isotope has an abundance of 72%.

Convert 72% to a decimal. Divide by 100 or move the decimal two places to the left.

  • 72/100= 0.72      or        72.0 --> 7.2 ---> 0.72

Multiply the mass of the isotope, which is 85, by the abundance as a decimal.

  • mass * decimal abundance= 85* 0.72= 61.2

Rubidium-85=61.2

<u>Rubidium-87</u>

This isotope has an abundance of 28%.

Convert 28% to a decimal. Divide by 100 or move the decimal two places to the left.

  • 28/100= 0.28       or        28.0 --> 2.8 ---> 0.28

Multiply the mass of the isotope, which is 87, by the abundance as a decimal.

  • mass * decimal abundance= 87* 0.28= 24.36

Rubidium-87=24.36

<u>Atomic Mass of Rubidium:</u>

Add the two numbers together.

  • Rb-85 (61.2) and Rb-87 (24.36)
  • 61.2+24.36=85.56 amu
4 0
3 years ago
Are these answers correct? I’m a little unsure
Naily [24]

Answer:

yes I think that they are correct

8 0
2 years ago
help please, How much water would you need to add to the 10 grams of sodium hydroxide to make 100 grams of the 10% solution?
jonny [76]

Answer:

90

Explanation:

gshhhshussussussjsuushhshjssuss

5 0
3 years ago
A car averages 27.5 miles per gallon
FrozenT [24]
How much is each gallon or how far are you going is the question you should be asking
6 0
3 years ago
Other questions:
  • A loose, icy body with a long, narrow orbit is?
    12·2 answers
  • the ratio of dahlias to tulips in a flower arrangement is 2 to 5 which of these could be the number of dahlias and tulips in the
    14·1 answer
  • Where are globular clusters found
    11·2 answers
  • 1.Write out the net equation for the dissolution of the ionic compound KNO3.
    6·1 answer
  • Theresa creates an experiment where she mixes two red-colored substances together in a container and observes the solution slowl
    5·2 answers
  • How do you write a balanced equation for the combustion<br> ofbenzene?
    14·1 answer
  • Two bottles are connected with a valve. In bottle A, there are 2.4 L of nitrogen gas at 1.8 atm. In bottle B, there are 4.8 L of
    9·1 answer
  • Human offspring begin with 1 cell that contains 46 chromosomes. This is because each sperm cell contains _____ chromosomes and e
    15·1 answer
  • 29. Spongebob loves to garden and wants to grow lots of pink flowers for his pal Sandy. He bought a special Flower Power fertili
    8·1 answer
  • PLEASE HELP ASAP!!!!!!!!!!!!!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!