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
Mariana [72]
3 years ago
14

Answer to this question?

Chemistry
2 answers:
bearhunter [10]3 years ago
6 0

Answer:

3rd one is the correct answer

Alja [10]3 years ago
3 0

Answer:

the third one I believe

You might be interested in
Balance this equation-<br> Fe + O2 Fe3 O4
kherson [118]
3Fe + 2O2 —- Fe3 + O4
7 0
3 years ago
A chemist prepares a solution of magnesium chloride MgCl2 by measuring out 49.mg of MgCl2 into a 100.mL volumetric flask and fil
Flura [38]

Answer:  Molarity of Cl^- anions in the chemist's solution is 0.0104 M

Explanation:

Molarity : It is defined as the number of moles of solute present per liter of the solution.

Formula used :

Molarity=\frac{n\times 1000}{V_s}

where,

n= moles of solute

Moles=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{0.049g}{95g/mol}=5.2\times 10^{-4}moles  

V_s = volume of solution in ml = 100 ml

Now put all the given values in the formula of molarity, we get

Molarity=\frac{5.2\times 10^{-4}moles\times 1000}{100ml}=5.2\times 10^{-3}mole/L

Therefore, the molarity of solution will be 5.2\times 10^{-3}mole/L

MgCl_2\rightarrow Mg^{2+}+2Cl^-

As 1 mole of MgCl_2 gives 2 moles of Cl^-

Thus 5.2\times 10^{-3}  moles of MgCl_2 gives =\frac{2}{1}\times 5.2\times 10^{-3}=0.0104

Thus the molarity of Cl^- anions in the chemist's solution is 0.0104 M

6 0
3 years ago
What is the periodic element symbol for gold?
Makovka662 [10]

Gold is Au on the periodic table

7 0
4 years ago
Which of the following best explains why the volume of an inflated balloon
mariarad [96]
Yes it’s for the good of ways
8 0
3 years ago
Can anyone give an image of your own science room
madam [21]

Answer:

i don't have one :(

Explanation:

just doing for points sorry plz mark me as brainliest

6 0
4 years ago
Other questions:
  • What is the definition of chemistry
    11·1 answer
  • The study of interactions between organisms and their environment is called...
    13·1 answer
  • Which best describes why acetic acid (CH3COOH) is an organic compound, but sodium hydroxide (NaOH) is not?
    5·2 answers
  • How can you tell how many elements a compound has
    14·1 answer
  • Visible light has an average wavelength of 550 nm. How much energy would be in this wavelength of light? 5 x 10-19​
    11·1 answer
  • Element X has a charge of +2 and Element Y has a charge of -1.
    11·1 answer
  • An atom of nitrogen would be stable if it bonded with how many atoms of chlorine?
    12·1 answer
  • Which best describes the current model of the atom?
    7·1 answer
  • High explosives will create what at the point of origin?
    5·1 answer
  • How does matter and energy cycle through an ecosystem?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!