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
seraphim [82]
3 years ago
12

Write the electronic configuration of the Na +, Mg2 +, Ca2 + and Rb + ions.

Chemistry
1 answer:
satela [25.4K]3 years ago
7 0

Answer:

pen

Explanation:

You might be interested in
Facial dimples in man are dominatant over no dimples. Show
Nat2105 [25]
I'm assuming false but really have no clue
3 0
3 years ago
In the laboratory you are asked to make a 0.565 m sodium bromide solution using 315 grams of water. How many grams of sodium bro
Scorpion4ik [409]

Answer : The mass of sodium bromide added should be, 18.3 grams.

Explanation :

Molality : It is defined as the number of moles of solute present in kilograms of solvent.

Formula used :

Molality=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Mass of solvent}}

Solute is, NaBr and solvent is, water.

Given:

Molality of NaBr = 0.565 mol/kg

Molar mass of NaBr = 103 g/mole

Mass of water = 315 g

Now put all the given values in the above formula, we get:

0.565mol/kg=\frac{\text{Mass of NaBr}\times 1000}{103g/mole\times 315g}

\text{Mass of NaBr}=18.3g

Thus, the mass of sodium bromide added should be, 18.3 grams.

6 0
3 years ago
Why ammonium is not a molecular ion
In-s [12.5K]

Answer:

See below

Explanation:

Ammonium (NH_{4}^+) is not a molecular ion because it is just a poly-atomic ion. A molecular ion has a "negative or positive charge" as a whole but the positive charge on here is not on the whole. So, it is a poly-atomic ion and not molecular ion.

3 0
3 years ago
Which of the above electron dot diagrams is wrong and why?
Elodia [21]

Answer:

Oxygen, it's supposed to have six valenge electrons.

Explanation:

Count the dots on the oxygen atom, you'll see seven, but there's supposed to be six.

5 0
3 years ago
Read 2 more answers
Please For a brainlist and +10 points
denis23 [38]

Answer:

edfgkvisiaixiicciciviicsiaiaqwododc

6 0
2 years ago
Other questions:
  • Which element is placed in the same period as ruthenium but has a higher atomic number than it? bismuth osmium silver zirconium
    15·2 answers
  • The number of hydrogen ions would equal the number of hydroxide ions in a solution with a pH of what?
    10·1 answer
  • You have two perfectly insulated cups. One contains water and the other contains an equal volume of another liquid that has half
    7·1 answer
  • Which formula can be used to calculate the molar mass of ammonia (NH3)?
    14·1 answer
  • What is the volume of 7.50 x 10^24 molecules of NH3 at STP?
    12·1 answer
  • Matter doesn’t have to take up space as long as it has mass TRUE or FALSE
    15·2 answers
  • After completing an experiment to determine gravimetrically the percentage of water in a hydrate, a student reported a value of
    10·1 answer
  • When dealing with the occurrence of more than one event, what is one way to determine all possible combinations? A. tree diagram
    15·1 answer
  • Which is an example of a chemical reaction?
    11·1 answer
  • What are ways in controlling soil applicable in your community​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!