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
Papessa [141]
3 years ago
7

HELP! WILL MARK BRAINLIEST! ASAP!!

Chemistry
1 answer:
lilavasa [31]3 years ago
8 0

Answer:

Mn is a Paramagnetic

Explanation:

You might be interested in
30cm^3 of a dilute solution of Ca(OH)2 required 11 cm^3 of 0.06 mol/dm^. Hcl for complete neutralization. Calculate the concentr
Alenkasestr [34]

Answer: Thus concentration of Ca(OH)_2 in mol/dm^3  is 0.011 and in g/dm^3 is 0.814

Explanation:

To calculate the concentration of Ca(OH)_2, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is HCl

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is Ca(OH)_2

We are given:

n_1=1\\M_1=0.06mol/dm^3\\V_1=11cm^3=0.011dm^3\\n_2=2\\M_2=?\\V_2=30cm^3=0.030dm^3         1cm^3=0.001dm^3

Putting values in above equation, we get:

1\times 0.06mol/dm^3\times 0.011dm^3=2\times M_2\times 0.030dm^3\\\\M_2=0.011mol/dm^3

The concentration in g/dm^3 is 0.011mol/dm^3\times 74g/mol=0.814g/dm^3

Thus concentration of Ca(OH)_2 is 0.011mol/dm^3 and 0.814g/dm^3

4 0
3 years ago
Klklklkllkllklkklkllkl
Svetradugi [14.3K]

Answer:

klklklkllkllklkklkllkl

Explanation:

Cuz thats what you said.. and why not :)

5 0
2 years ago
Which of the following is an example of an abiotic factor? A wind factor B Human C bacterium D duck
solmaris [256]
Abiotic factors, also called abiotic components, are non-living parts of the environment which affects the living organisms and their function in the ecosystem. I think the correct answer is A. Wind factor is the only non-living part from the choices.

7 0
2 years ago
Read 2 more answers
How many moles are in 25 grams of dihydrogen monoxide
timurjin [86]
If you'd like the full working, here it is:

I calculated this by using the formula triangle.

Mass

Number Formula
Of moles Mass

To calculate the number if moles in a substance, you need to divide the Mass by the Formula mass. You get the formula mass by adding the atomic masses of the elements in the compound together. In this situation, H2O, it would be two hydrogen molecules plus one oxygen molecule which is 2 + 16. This is because the atomic mass of Hydrogen is 1 and the atomic mass of Oxygen is 16.

Now that we have the Formula mass we can go ahead and do the calculation since we already have the Mass. You do as follows:

Mass divided by Formula mass which is in this case - 25 divided by 18

By doing this calculation you will get the answer which is 1.38 moles which can be rounded to 1.4

Hope this helps :)
6 0
3 years ago
Read 2 more answers
I have no idea what to put, pls help, due tmr<br>(science)​
rodikova [14]

Answer:

It traveled for 4 seconds at a distance of about 4.1 meters. With a velocity of 10%.

Explanation:

6 0
2 years ago
Other questions:
  • Question 7 When of benzamide are dissolved in of a certain mystery liquid , the freezing point of the solution is lower than the
    14·1 answer
  • The temperature of a sample of iron with a mass of 10.0g changed from 50.4 degrees C with the release of 114J. What is the speci
    9·1 answer
  • Consider the perbromate anion. What is the central atom? Enter its chemical symbol. How many lone pairs are around the central a
    10·1 answer
  • When adenosine triphosphate (ATP) releases the energy it carries, it typically breaks apart into _____.
    12·1 answer
  • Please answer quick. In an experiment, a student collects 107 mL of H2 over water at a pressure of 104.8 kPa and a temperature o
    15·1 answer
  • If you have 177 grams of C4H80, how many moles do you have?
    14·1 answer
  • Please help, How many molecules does 20.0 grams of C8H8 represent?
    7·1 answer
  • C. Complete the following combustion reaction. Write your balanced equation two different ways.
    15·1 answer
  • Please Help! <br><br> How many molecules are in a 4.1 mole sample of CO?
    11·1 answer
  • Are any of these equations redox reactions? if so what are their reducing and oxidizing agents?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!