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o-na [289]
4 years ago
13

Calculate the number of atoms present in each following 2 mol fe

Chemistry
1 answer:
Nezavi [6.7K]4 years ago
7 0
Hope this helps you.

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3) What are the three types of sedimentary rocks?
astraxan [27]

Answer:

clastic, organic, and chemical

8 0
3 years ago
¿Cuál es el % m/m de una disolución en que hay disueltos 22 g de soluto en 44 g de disolvente?
Archy [21]

The question is as follows: What is the% m / m of a solution in which 22 g of solute are dissolved in 44 g of solvent?

Answer: The% m/m of a solution in which 22 g of solute are dissolved in 44 g of solvent is 50%.

Explanation:

Given: Mass of solute = 22 g

Mass of solvent = 44 g

The percentage m/m is calculated using the following formula.

Mass percentage = \frac{mass of solute}{mass of solvent} \times 100

Substitute the values into above formula as follows.

Mass percentage = \frac{mass of solute}{mass of solvent} \times 100\\= \frac{22 g}{44 g} \times 100\\= 50 percent

Thus, we can conclude that the% m/m of a solution in which 22 g of solute are dissolved in 44 g of solvent is 50%.

5 0
3 years ago
Which term below best matches a potential energy diagram in which the potential energy value of the reactants is less than that
ivann1987 [24]
The correct answer is D, the Endothermic Process.  

Hope I helped.  :)
4 0
4 years ago
Read 2 more answers
How much faster does helium escape through a porous container than ozone?
otez555 [7]
According to Graham's Law ," the rates of effusion or diffusion of two gases are inversely proportional to the square root of their molecular masses at given pressure and temperature".

                                r₁ / r₂  =  \sqrt{M2 / M1}   ---- (1)

r₁    =  Rate of effusion of He

r₂    =  Rate of Effusion of O₃

M₁  =  Molecular Mass of He  =  4 g/mol

M₂  =  Molecular Mass of O₃  =  48 g/mol

Putting values in eq. 1,

                                r₁ / r₂  =  \sqrt{48 / 4}

                                r₁ / r₂  =  \sqrt{12}

                                r₁ / r₂  =  3.46

Result:
          Therefore, Helium will effuse 3.46 times more faster than Ozone.
4 0
3 years ago
Calculate the percent error. A block has a true mass of 16.9 g. A student masses it to be 10.5 g. What is the student's percent
KIM [24]

Answer:

37.9%

Explanation:

x/100 × 16.9 = 10.5

16.9x/100=10.5

16.9x=1050. (÷ b.s by 16.9)

x=62.1%

100%-62.1%=37.9%

7 0
4 years ago
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