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
Nesterboy [21]
3 years ago
9

1.

Chemistry
1 answer:
wolverine [178]3 years ago
3 0
D) Hail. Hail is frozen rain
You might be interested in
When an oxygen atom forms an ion, it gains two electrons. Identify the electrical charge of the oxygen ion.
mel-nik [20]
"-2" is the electric charge of the oxygen ion among the following choices given in the question. It actually needs two electrons to complete the stable outer shell. The correct option among all the options that are given in the question is the third option or option "C". I hope that the answer has helped you.
5 0
3 years ago
Read 2 more answers
Convert 682000000000 kmol to Tmol
Elena-2011 [213]

Answer:

682 teramoles

Explanation:

5 0
2 years ago
Read 2 more answers
Explain why vegetables last longer in a fridge.
jeka57 [31]

It has to do with the releasing of ethylene, which speeds up the ripening process  

6 0
3 years ago
Read 2 more answers
The British gold sovereign coin is an alloy of gold and copper having a total mass of 7.988 g, and is 22-karat gold.
azamat

Answer:

(a) m_{gold}=7.322g

(b)

V_{gold}=0.379cm^3

V_{copper}=0.122cm^3

(c) \rho _{coin}=15.94g/cm^3

Explanation:

Hello,

(a) In this case, with the given formula we easily compute the mass of gold contained in the sovereign  as shown below:

m_{gold}=\frac{m_{tota}*karats}{24}=\frac{7.988g*22}{24}=7.322g

(b) Now, by knowing the density of gold and copper, 19.32 and 8.94 g/cm³ respectively, we compute each volume, by also knowing that the rest of the coin contains copper:

V_{gold}=\frac{m_{gold}}{\rho_{gold}} =\frac{7.322g}{19.32g/cm^3}=0.379cm^3

m_{copper}=7.988g-7.322g=1.09g\\V_{copper}=\frac{m_{copper}}{\rho_{copper}}=\frac{1.09g}{8.94g/cm^3}  \\\\V_{copper}=0.122cm^3

(c) Finally, the volume is computed by dividing the total mass over the total volume containing both gold and copper:

\rho _{coin}=\frac{m_{total}}{V_{gold}+V_{copper}}=\frac{7.988 g}{0.379cm^3+0.122cm^3}\\  \\\rho _{coin}=15.94g/cm^3

Best regards.

3 0
3 years ago
Read 2 more answers
What is the pOH of a solution of HNO3 that has [OH-] = 9.50 10-9 M?
bekas [8.4K]

Answer:

The pOH of HNO₃ solution that ha OH⁻ concentration 9.50 ×10⁻⁹M is 8.

Explanation:

Given data:

[OH⁻] = 9.50 ×10⁻⁹M

pOH = ?

Solution:

pOH = -log[OH⁻]

Now we will put the value of OH⁻ concentration.

pOH = -log[9.50 ×10⁻⁹M]

pOH = 8

Thus the pOH of HNO₃ solution that ha OH⁻ concentration 9.50 ×10⁻⁹M is 8.

6 0
3 years ago
Read 2 more answers
Other questions:
  • As the pressure on a sample of gas increases, the volume of the sample _____.
    13·2 answers
  • 1.Complete the balanced neutralization equation for the reaction below:
    11·1 answer
  • One teaspoonful diluted to 2 liters results in a 1/8000 solution. what is the amount of potassium permanganate in grams required
    13·1 answer
  • Josh wants to sell a type of drink that has many layers to attract customers.Create a drink and explain the methods to produce t
    10·1 answer
  • What is importance of thermometer?​
    5·1 answer
  • For each part below, use the data below to calculate ΔG at 215 K for each of the following reactions. Then use the data in the c
    9·1 answer
  • PLS HELP ASAP. list 5 chemicals that contribute to ozone layer depletion?​
    8·1 answer
  • Which of the following are considered physical changes?
    13·1 answer
  • What is the electron ADDRESS of Chlorine
    5·1 answer
  • The table shows the concentration of a reactant in the reaction mixture over a period of time.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!