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
gtnhenbr [62]
3 years ago
11

Why do Group 12 elements have different properties than Group 13 elements?

Chemistry
1 answer:
blagie [28]3 years ago
6 0
Group 12 Elements have two valence electrons while Group 13 Elements have three valence electrons.
Number of valence electrons tend to determine factors like reactivity. So elements with different number of valence electrons will have different properties.
That is why G12 and G13 have different properties
You might be interested in
Which atomic model states that it is impossible to know the exact location of electrons around the nucleus?
Alja [10]
<span>The correct answer is electron-cloud model. This model states that electrons don't go around in an eliptical way but rather completely erratically and uncontrolably and this is why it can't be known where they are or how they will behave. They form sort of like a cloud of many electrons that move erratically so you have to check it to see where it is.</span>
4 0
3 years ago
A chemistry student needs of acetic acid for an experiment. He has available of a w/w solution of acetic acid in acetone. Calcul
Volgvan

Answer:

49.4 g Solution

Explanation:

There is some info missing. I think this is the original question.

<em>A chemistry student needs 20.0g of acetic acid for an experiment. He has 400.g  available of a 40.5 %  w/w solution of acetic acid in acetone.  </em>

<em> Calculate the mass of solution the student should use. If there's not enough solution, press the "No solution" button. Round your answer to 3 significant digits.</em>

<em />

We have 400 g of solution and there are 40.5 g of solute (acetic acid) per 100 grams of solution. We can use this info to find the mass of acetic acid in the solution.

400gSolution \times \frac{40.5gSolute}{100gSolution} = 162 g Solute

Since we only need 20.0 g of acetic acid, there is enough of it in the solution. The mass of solution that contains 20.0 g of solute is:

20.0gSolute \times \frac{100gSolution}{40.5gSolute} = 49.4g Solution

4 0
3 years ago
Pls help it's about density ​
Vaselesa [24]
1. 100.67
2. 168.55
3. 2.747
So I’m not sure if 2 or 3 are right sorry
4 0
3 years ago
Given a solution with a hydroxide ion concentration, oh=3.73×10^-5,what is the ph
Stells [14]

Answer:

  • <em><u>pH </u></em><u>= 9.73</u>

<u></u>

Explanation:

<em>pOH</em> is the negative logarithm of the molar <em>concentration</em> of<em> hydroxide ions </em>and pH is the negative logarithm of the concentration of hydronium ions.

The mathematical expression to determine pOH is:

         pOH=-\log [OH^-]

Where [OH⁻] means the molar concentration of hydroxide ions.

Substituting:

        pOH=-\log {(3.73\times 10^{-5})

       pOH=4.43

<em>pH </em>and <em>pOH</em> are related by the equation:

           pH+pOH=14

From which:

           pH=14-pOH\\\\pH=14 - 4.43\\\\pH=9.57\leftarrow answer

8 0
3 years ago
Propane (C3 H8 (g), Delta.Hf = –103.8 kJ/mol) reacts with oxygen to produce carbon dioxide (CO2 , Delta.Hf = –393.5 kJ/mol ) and
xeze [42]

Answer:

-2,044.0 kJ/mol

Explanation:

<em> I just did the test on edg</em>

<em />

4 0
3 years ago
Read 2 more answers
Other questions:
  • A target is shielded from a radioactive sample by a sheet of metal. What kind of radiation can pass through the sheet of metal a
    5·2 answers
  • Which of the following is the CORRECT path taken by sperm from site of production to site of ejection? A. epididymis, seminifero
    12·1 answer
  • 1) According to the balanced chemical equation below; how many atoms of silver (Ag) will be produced from 100 g of copper (Cu) w
    15·1 answer
  • The blank is the energy difference between reactants and products in a chemical reaction
    7·1 answer
  • Rank the elements according to their metallic character.
    10·1 answer
  • What is the name for 3Na2SO4
    12·2 answers
  • 2. Report each of the following quantities to 3 significant figures. Use standard notation if possible, or
    12·1 answer
  • While washing his hands before the client consultation with Chloe, Jayden dripped some water onto the countertop. When he came b
    10·1 answer
  • What happens when an ice cube melts in a glass of water?
    11·1 answer
  • How to find reaction force
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!