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
n200080 [17]
3 years ago
7

PLEASE HELP ME ANSWER

Chemistry
1 answer:
IrinaVladis [17]3 years ago
7 0

Answer:

The answer is A: Quantities of thousands are more common than quantities of trillions.

Explanation:

It's just kind of process of elimination. None of the other answers make as much sense

You might be interested in
What is the mole fraction of NaCl in a mixture containing 7.21 moles NaCl, 9.37 moles KCL, and 3.42
GrogVix [38]

Answer : The mole fraction of NaCl in a mixture is, 0.360

Explanation : Given,

Moles of NaCl = 7.21 mole

Moles of KCl = 9.37 mole

Moles of LiCl = 3.42 mole

Now we have to calculate the mole fraction of NaCl.

\text{Mole fraction of }NaCl=\frac{\text{Moles of }NaCl}{\text{Moles of }NaCl+\text{Moles of }KCl+\text{Moles of }LiCl}

Now put all the given values in this formula, we get:

\text{Mole fraction of }NaCl=\frac{7.21}{7.21+9.37+3.42}=0.360

Therefore, the mole fraction of NaCl in a mixture is, 0.360

3 0
3 years ago
5.6 g of solid CO2 is put in an empty sealed 4.00 L container at a temperature of
tresset_1 [31]

Answer:

0.78 atm

Explanation:

Step 1:

Data obtained from the question. This includes:

Mass of CO2 = 5.6g

Volume (V) = 4L

Temperature (T) =300K

Pressure (P) =?

Step 2:

Determination of the number of mole of CO2.

This is illustrated below:

Mass of CO2 = 5.6g

Molar Mass of CO2 = 12 + (2x16) = 12 + 32 = 44g/mol

Number of mole CO2 =?

Number of mole = Mass/Molar Mass

Number of mole of CO2 = 5.6/44

Number of mole of CO2 = 0.127 mole

Step 3:

Determination of the pressure in the container.

The pressure in the container can be obtained by applying the ideal gas equation as follow:

PV = nRT

The gas constant (R) = 0.082atm.L/Kmol

The number of mole (n) = 0.127 mole

P x 4 = 0.127 x 0.082 x 300

Divide both side by 4

P = (0.127 x 0.082 x 300) /4

P = 0.78 atm

Therefore, the pressure in the container is

3 0
4 years ago
The molar mass of copper(II) chloride (CuCl2) is 134.45 g/mol. How many formula units of CuCl2 are present in 17.6 g of CuCl2? 7
Sedaia [141]
7.88  10^22 formula units 
5 0
4 years ago
Read 2 more answers
The chart below includes images of different structures found in animals or plants. For each structure, describe the smaller liv
Lady_Fox [76]
Gggfvmkjhgtfgjjhghhhhfddfgghhjjjjjjjj
5 0
3 years ago
How many moles are in 525 g of ammonia, NH3?<br> 8940.75 M<br> 0.03 M<br> 30.83 M
victus00 [196]

Answer:

30.83 M

Explanation:

17.03052 re in one mole. So, if you multiply it by 30.83, you will get 535 g of ammonia.

In fact, the detailed answer is 30.827009392549122.

3 0
2 years ago
Read 2 more answers
Other questions:
  • How many atoms are there in 90.2 grams of selenium?
    12·1 answer
  • The best lewis structure for sulfuric acid has zero formal charges, sulfur as the central atom, and no bonds between s and h. ho
    11·2 answers
  • A solid is 5 cm tall 3 cm wide and 2 cm thick it has a mass of 129 g what is the density
    7·2 answers
  • The best recrystallization solvent for benzil was ethanol. what would be the consequence of using acetone as the recrystallizati
    6·1 answer
  • Relationship between the variables of Pressure and Temperature of a gas?
    5·1 answer
  • Calculate freeze 62.9 g of iron at 1535oC<br> Hf (J/g)=257
    8·1 answer
  • 15.00 g of aluminum sulfide (150.1 g/mol) and 10.00 g of water (18.02 g/mol) react until the limiting reactant is used up. Calcu
    14·2 answers
  • Choose the most alkaline substance in the group.
    8·1 answer
  • It is used to lift water from a well​
    5·1 answer
  • Does your always work ?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!