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
Law Incorporation [45]
3 years ago
8

What are the differences between sand and potting soil? Are they both mixtures? How do you know?

Chemistry
1 answer:
katen-ka-za [31]3 years ago
7 0
What class is this for because it depends
You might be interested in
Consider the insoluble compound silver bromide , AgBr . The silver ion also forms a complex with ammonia . Write a balanced net
Degger [83]

Answer:

- AgBr(s)+2NH_3(aq)\rightleftharpoons Ag(NH_3)_2^+(aq)+Br^-(aq)

- K=1.2x10^{-5}

Explanation:

Hello,

In this case, by considering the dissolution of silver bromide:

AgBr(s)\rightleftharpoons Ag^+(aq)+Br^-(aq) \ \ \ Ksp=[Ag^+][Br^-]=7.7x10^{-13}

And the formation of the complex:

Ag^+(aq)+2NH_3(aq)\rightleftharpoons Ag(NH_3)_2^+(aq)\ \ \ Kf=\frac{[Ag(NH_3)_2^+]}{[Ag^+][NH_3]^2}=1.6x10^7

We obtain the balanced net ionic equation by adding the aforementioned equations:

AgBr(s)+Ag^+(aq)+2NH_3(aq)\rightleftharpoons Ag(NH_3)_2^+(aq)+Br^-(aq)+Ag^+(aq)\\\\AgBr(s)+2NH_3(aq)\rightleftharpoons Ag(NH_3)_2^+(aq)+Br^-(aq)

Now, the equilibrium constant is obtained by writing the law of mass action for the non-simplified net ionic equation:

AgBr(s)+Ag^+(aq)+2NH_3(aq)\rightleftharpoons Ag(NH_3)_2^+(aq)+Br^-+Ag^+\\\\K=[Ag^+][Br^-]*\frac{[Ag(NH_3)_2^+]}{[Ag^+][NH_3]^2}

So we notice that the equilibrium constant contains the solubility constant and formation constant for the initial reactions:

K=Ksp*Kf=7.7x10^{-13}*1.6x10^{7}\\\\K=1.2x10^{-5}

Best regards.

4 0
3 years ago
Calculate the density of gold (in units of g/mL) if a 5.00 cm cube has a mass of 2.41kg
levacccp [35]
The volume of a 5cm cube is 0.5dm*0.5dm*0.5dm = 0.125dm^3
1dm^3 = 1l
So 0.125dm^3 = 125mL
This gives us 2410/125 = 19.28
So the density of gold is 19.28g/mL
Final check: Gold is indeed 19.3g/mL
5 0
3 years ago
Read 2 more answers
Describe how magnetic forces and electric forces are similar and different from each other
PtichkaEL [24]

<em>ANSWER:</em>

Objects that have the same charge, both positive or both negative, repel each other, and those with opposite charges attract each other. ... Similar to electric charges, opposite poles attract, and like poles repel. The stronger the magnets and the closer together they are, the stronger the magnetic force between them.

4 0
3 years ago
I need help with these
Delvig [45]

Answer:

9yuigyu need points sorry

Explanation:

4 0
3 years ago
Select the most likely product for this reaction: upper a g upper n upper o subscript 3 (a q) plus upper n a upper o upper h (a
Mamont248 [21]

One of the most likely products for the reaction would be Ag_2O

<h3>Chemical reactions</h3>

The reaction between AgNO_3 and NaOH yields 3 products which are Ag_2O (a precipitate), NaNO_3, and H_2O as shown by the equation below:

2 AgNO_3 + 2 NaOH --- > Ag_2O + 2 NaNO_3 + H_2O

One of the products precipitates out of the solution to give the reaction a precipitation reaction look.

More on precipitation reaction can be found here: brainly.com/question/24158764

#SPJ4

5 0
2 years ago
Read 2 more answers
Other questions:
  • Determine how many grams of sodium phosphate would be needed to prepare 455 ml of a 2.50% (m/v) sodium phosphate solution
    12·1 answer
  • Which system creates blood cells
    15·2 answers
  • Liquids that dissolve freely in one another in any proportion
    12·1 answer
  • Lungs function as part of the __________ system and the __________ system.
    12·2 answers
  • If Na was to form a 2 ion, from what orbital subshell would the second electron be lost?
    10·1 answer
  • What is the total pressure of a gaseous mixture that contains three gases with partial pressures of 0.845 atm, 120 torr and 210
    7·1 answer
  • Why do we call them "Neutralization reaction"?<br>This is section 2.6 Chemical Reactions
    10·1 answer
  • What are the main components of diesel fuel?
    8·1 answer
  • Helllppp<br> Name the ions formed by the following elements (sodium - iodine)
    13·1 answer
  • Which of the following best describes topsoil?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!