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
lesya692 [45]
3 years ago
7

(will give brainliest!! please help me! thank you!)

Chemistry
1 answer:
just olya [345]3 years ago
6 0

Answer:

A two energy levels K and L

B halogen are present in group 17

C in same group elements have same valence electrons

Explanation:

You might be interested in
How many molecules are in 2.00 moles of H20????????
Elis [28]

2x 6.022x10^23= 1.204x10^24

7 0
3 years ago
What is the molarity of a solution that contains 2 moles of solute in 4 liters of solution?
Nitella [24]
The simple formula is C = n/V
n = mols
C = Concentration or Molarity
V = Volume in Liters.

n = 2
V = 4
C = 2 / 4
C = 0.5 mol/Litre

8 0
3 years ago
Which of these bonds is the weakest?​
Olenka [21]

Answer:

The first one has the weakest bond

Explanation:

The number of atoms together shows how strong the bonds in the second bond it is 4 bonds, the third is 8 bonds, the 4th one is 4 bonds thus why the first bond is the weakest.

6 0
3 years ago
Why does the electrical conductivity of ionic compounds change when they are dissolved in water?
meriva
Ionic compounds conduct electricity when dissolved in water, because the dissociated ions can carry charge through the solution. Molecular compounds don't dissociate into ions and so don't conduct electricity in solution. Electrical conductivity of the compound in liquid form
3 0
3 years ago
A naturally occurring element consists of three isotopes. The data for the isotopes are:
max2010maxim [7]
(46.972* 69.472% + 48.961*21.667% + <span>49.954*8.8610%)/100% =

</span>= 46.972* 0.69472 + 48.961*0.21667 + 49.954*0.088610 =47.667 u
7 0
3 years ago
Other questions:
  • Which choice describes a population? A. all the gray squirrels that live in a forest B. a nonliving factor in an organism's envi
    7·1 answer
  • How many moles of al would be produced from 10 moles of al2o3? (not balanced al2o3 ? al + o2?
    14·1 answer
  • there are 125 lima beans 56 garbanzo beans 39 kidney beans and 144 green peas in a container. find the percent by number of gree
    14·1 answer
  • Calculate the heat of decomposition for this process at constant pressure and 25°C: CaCO3(s) → CaO(s) + CO2(g) The standard enth
    5·1 answer
  • What is a compound?
    5·2 answers
  • 15 POINTS FOR ANYONE WHO CAN ANSWER THIS!!!!!! plZ
    7·1 answer
  • Explain the bond between Mg2C12 and also what type of bond will it be ionic or covalent?
    6·1 answer
  • Pls helppp ASAP I’ll brainlest
    12·2 answers
  • Explain<br> Question<br> 1. An atom makes<br> up a compound<br> True/False
    8·2 answers
  • What is the rule for determining the mass of an atom
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!