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
HACTEHA [7]
1 year ago
7

A sample of 0.300 mol of a metal m reacts completely with excess fluorine to form 23.4 g of mf2. what element is represented by

the symbol m? (give its symbol).
Chemistry
1 answer:
Phoenix [80]1 year ago
5 0

Molecular weight of m is 40g. Hence, name of element m is Calcium. which is represented by the symbol Ca.

Given,

Moles of metal M = 0.300 moles

 weight of mF₂ formed =23.4g

we have to find the name of element m...

Now,

 m + F₂ → mF₂

1 mole of m reacts with 1 mole of F₂ (or 2 molecule of flourine) to form 1 mole of mF₂

Hence,

 0.300 moles of m reacts with 0.300 moles of F₂ to form 0.300 moles of mF₂.

 

Hence,

 23.4 g = 0.300 moles of mf2

0.300 × 38g + 0.300 × m = 23.4 g

Hence

 m = 40 g

So, molecular weight of m is 40g. Hence, name of element m is Calcium. which is represented by the symbol Ca.

 Thus, from the above conclusion we can say that, name of element m is Calcium. which is represented by the symbol Ca.

Learn more about Calcium here:brainly.com/question/26636816

#SPJ4

You might be interested in
When you have finished adding the necessary amount of NaOH to your beaker, what color will the litmus paper turn?
Svetllana [295]

<u>Answer:</u> The red litmus paper turns blue on dipping in NaOH solution.

<u>Explanation:</u>

Litmus paper is the indicator that detects the nature of the solution, whether it is acidic or basic.

There are 2 types of litmus paper:

  • <u>Red litmus paper:</u> This paper will turn blue if it is dipped in basic solution and will remain as such if it is dipped in acidic solution.
  • <u>Blue litmus paper:</u> This paper will turn red if it is dipped in acidic solution and will remain as such if it is dipped in basic solution.

NaOH is a strong base, so when a red litmus paper is dipped in the beaker having necessary amount of NaOH, the red litmus paper turns into blue.

7 0
3 years ago
How many electrons would Boron with a +2 charge have?
irina [24]

5 electrons

Boron atomic number 5 has five electrons in its ground state.

Commonly Boron will lose 3 electrons leaving 2 electrons in its most common ionic form.

Explanation:

The atomic number gives the number of protons. Protons which have a positive charge are balanced by an equal number of electrons in a neutral atom.

Boron number 5 has five protons and therefore as a neutral atom also has five electrons.

Boron has an electron configuration of

1s22s22p1

The most stable electron configuration for Boron is

1s2

+ 3 charges. By losing three electrons Boron can achieve the stable electron structure of Helium

Brainliest? :D

4 0
3 years ago
Why Does Grape Flavor Smell The Way It Is When Actual Grapes Don't Taste Or Smell Anything Like It? I looked up this question an
frez [133]

Answer:

That is a good question... Maybe Because it is artificial and the makers do not know how to mimic nature.

Explanation:

5 0
3 years ago
Read 2 more answers
The<br>of a chemical reaction is the maximum amount of product that can be produced​
Troyanec [42]

Answer= Maximum amount of product that could be obtained under ideal conditions from a given amount of reactants.

Explanation:

The theoretical yields is the ideal maximum amount of a product that can be produced during a chemical reaction while the limiting reactant is the reactant that determines the maximum amount of product that can be formed. mitgliedd1 and 61 more users found this answer helpful.

5 0
2 years ago
When C3H8 burns completely in an excess of oxygen , the products formed are?
Marizza181 [45]
Water and carbon dioxide respectively

6 0
3 years ago
Other questions:
  • Elements are arranged in groups by similar atomic structure on the periodic table. This allows for an element's properties to be
    7·1 answer
  • What is the PRECAUTION for an Irritant?
    5·1 answer
  • 100!!!!! Points!!!!! hel-p!!!!!
    14·2 answers
  • Which state of matter had the greatest distance the individual particles?
    13·1 answer
  • Which step will decrease the pressure of a gas inside a closed cubical container
    7·2 answers
  • Which of these is a product of photosynthesis and a requirement
    14·1 answer
  • Pls help I don’t understand at all
    9·1 answer
  • Chromosomes _____. (Choose all that apply)
    12·1 answer
  • Hot water deep within earth can _______ minerals and transport them someplace else.
    5·1 answer
  • How could you put the understanding of the size of a drop of water to good use in Chemistry?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!