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
Dima020 [189]
2 years ago
13

The element whose atomic number is 13 has how many valence electrons electron configuration

Chemistry
1 answer:
RideAnS [48]2 years ago
4 0
It is in Group 3A = 3 valence electrons

Electron Config. = 1s2 2s2 2p6 3s2 3p1
You might be interested in
Help me with homework.
andrey2020 [161]

The chemical equation is said to be balanced if the number of atoms in the reactants and products is the same

<h3>Further explanation</h3>

Equation balanced ⇒ total number of atoms in reactants(on the left)= total number of atoms in products(on the right)

H₂+O₂---> H₂O

Reactants : H₂, O₂

Products : H₂O

not balanced

H₂O₂ ---> H₂O+O₂

Reactants : H₂O₂

Products : H₂O, O₂

not balanced

Na+O₂ ---> Na₂O

Reactants : Na, O₂

Products :  Na₂O

not balanced

N₂+H₂ ---> NH₃

Reactants : N₂, H₂

Products :  NH₃

not balanced

P₄+O₂---> P₄O₁₀

Reactants : P₄, O₂

Products :  P₄O₁₀

not balanced

Fe+H₂O ----> Fe₃O₄ + H₂

Reactants : Fe, H₂O

Products :  Fe₃O₄

not balanced

7 0
3 years ago
why mixture of stone pebbles And water is concerned considered suspension you are provided with a mixture of sand salt and camph
baherus [9]

Answer:

camphor sublimates salt is soluble in water while sand does not sublime and does not dissolve in water you first heat the mixture in a beaker covered with a watch glass camphor will then accumulate on the watch glass then you dissolve the remaining mixture of sand and salt salt will dissolve forming a salt solution then you filter using a filter paper and a beaker the residue on the filter paper is sand while the filtrate is salt solution you then heat the salt solution so that it can evaporate leaving salt particles thus you will have obtained salt sand and camphor

6 0
3 years ago
The table shows the properties of some organic compounds.
riadik2000 [5.3K]

Yo sup??

since A has a hydroxyl group ie OH therefore it's an alcohol

and since B has an oxygen between two carbons therefore it's an ether.

hence the correct answer is option B

A is alcohol and B is ether

Hope this helps

8 0
3 years ago
By studying fossils, scientists get an idea of ....
Tema [17]
<span>By studying fossils, scientists get an idea of what the organisms looked like, what they ate, and how they lived. </span>
6 0
2 years ago
H2SO4 is added to a large beaker of water. How is the solution different from the original water?
Natasha_Volkova [10]

Answer is: A) The solution turns blue litmus to red.

Sulfuric acid (H₂SO₄) is a strong acid, it means that the solution of sufuric acid is more acidic (pH<7) than water (pH = 7).

Chemical dissociation of sulfuric acid in water:  

H₂SO₄(aq) → 2H⁺(aq) + SO₄²⁻(aq).

When solution turns phenolphthalein pink, it means it is basic (pH>7).

Sulfuric acid has more hydrogen ions (H⁺) and less hydroxide ions (OH⁻) than water.

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the GFM of H2O2
    15·1 answer
  • Balance the following chemical equation.
    10·1 answer
  • 7-10. Fine whichever is missing out of pH, POH, (H+), and [OH-].
    13·1 answer
  • Name four products of incomplete combustion<br><br> 1<br> 2<br> 3<br> 4
    10·2 answers
  • What is the product of the unbalanced equation below?
    12·1 answer
  • What is the mass of an object that creates 33,750J of energy by traveling at<br> 30m/s?
    14·2 answers
  • Maintaining constant pressure, the volume of a gas is increased from 12,0 L
    12·1 answer
  • PLEASE TELL ME THE AWNSERS ITS A DOC FILE SO OPEN IT I WILL GIVE BRAINLIEST PLS HURRY
    8·1 answer
  • On the periodic table, groups are elements with similar *
    11·2 answers
  • What substitute for fossil fuel depletion has been heralded as the solution to the nation’s energy problems??
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!