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
Allushta [10]
3 years ago
14

What are valence electrons ?

Chemistry
1 answer:
Arada [10]3 years ago
8 0

Answer:In chemistry, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.

Explanation: hope this helped

You might be interested in
Number 2 I don't get what the question is asking
Rus_ich [418]
Wow thats pretty hard its asking how many is in each of those
7 0
3 years ago
Write the steps for calculating molar mass.
Marizza181 [45]

Answer:

Explanation:

1) Find number of each of the type of atom that is present in the compound, using the chemical formula .

2) Then multiply number of atoms of each element that is present in the compound with the atomic weight of each of the element

3) Add everything together and add the units (grams/mole ) after the number

Let finds that of water

Chemical formula of water is (H20 )

hydogens atoms= 2

oxygen atom= 1

Atomic weight for Hydrogen= 1

Atomic weight for Oxygen= 16

Total number of atoms of Hydrogen from the formula (H2O)= 2

Total number of atoms of Oxygen from the formula (H2O)= 1

the molar mass=

Hydrogen: ( 2 x 1)= 2

Oxygen: ( 1 x 16)= 16

Add together= (16+2)

= 18

Then add the unit, we have(18 g/mol.)

5 0
3 years ago
Ep-15 why is carbon monoxide especially dangerous?
Rzqust [24]

Carbon monoxide is dangerous because it binds with hemoglobin in the blood.


Hemoglobin is made up of proteins that bind to iron atoms. The structure of the protein facilitates loose binding of oxygen. On other hand, Carbon monoxide binds very strongly to the iron in hemoglobin. Once carbon monoxide is bonded to hemoglobin, it is very difficult to release. This, eventually results in  blood losing it its ability to transport oxygen. Hence, the person will suffocate. Due to this, CO is dangerous. 

8 0
3 years ago
How much mass of sodium chloride ( ) should be dissolved in water to make 1.5 L of 0.75 M aqueous solution? The molar mass of is
iogann1982 [59]

Answer:

Mass = 65.8 g

Explanation:

Given data:

Mass of sodium chloride = ?

Volume of solution = 1.5 L

Molarity of solution = 0.75 M

Solution:

Number of moles of sodium chloride:

Molarity = number of moles / volume in L

By putting values,

0.75 M = number of moles = 1.5 L

Number of moles = 0.75 M × 1.5 L

Number of moles = 1.125 mol

Mass of sodium chloride:

Mass = number of moles × molar mass

Mass = 1.125 mol × 58.5 g/mol

Mass = 65.8 g

4 0
2 years ago
HELP!! I WILL CROWN BRAINLEIST FOR FAST ANSWER! The element phosporus is located to the right of the element magnesium along the
Yuliya22 [10]
B. since Phosphorus has an atomic mass of 30.974 (larger) than Magnesium which is 24.305 (smaller)
7 0
3 years ago
Read 2 more answers
Other questions:
  • Fe(s)+Cl2(g)>FeCl3(s)
    12·2 answers
  • Chemistry:give the number of significant figures in this number: 0.025
    6·1 answer
  • Which term names the group of organisms able to interbreed and produce fertile offspring?
    10·1 answer
  • A substance that enters into a chemical reaction is called a(n) _____.
    7·2 answers
  • What is the least dense layer of the earth
    13·2 answers
  • A state of matter in which the electrons temporarily separate from the protons. Group of answer choices gas plasma liquid Bose-E
    8·1 answer
  • How do scientists measure the idea of time so long ago?
    14·1 answer
  • What is the organic molecule
    9·2 answers
  • Minerals are formed by which process? O magma cooling O fault lines moving O metamorphosis O sedimentation​
    15·1 answer
  • What is reason of the formation of tectonic plates?​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!