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zysi [14]
2 years ago
11

How many atoms are contained in 3.46 moles of magnesium

Chemistry
1 answer:
Liono4ka [1.6K]2 years ago
6 0

Answer:

2.08 * 10^{24}

Explanation:

Avagadros number times the # of moles.

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Given the following reaction:
Semenov [28]

Answer:

The answer to your question is 0.35 moles of ZnCl₂

Explanation:

Data

moles of ZnCl₂ = ?

mass of Zn = 23 g

mass of CuCl₂ = excess

Balanced chemical reaction

             Zn + CuCl₂   ⇒   ZnCl₂  +  Cu

Process

1.- Convert the mass of Zn to moles

-Look for the atomic mass of Zn

Atomic mass = 65.4 g

-Convert the grams to moles

            65.4 g -------------- 1 mol

             23 g  ----------------  x

               x = (23 x 1)/65.4

               x = 23 / 65.4

               x = 0.35 moles of Zn

2.- Calculate the moles of ZnCl₂ using proportions and cross multiplication, and the coefficients of the balanced chemical reaction.

              1 mol of Zn ---------------- 1 mol of ZnCl₂

             0.35 moles of Zn --------  x

              x = (0.35 x 1) / 1

              x = 0.35 moles of ZnCl₂

7 0
3 years ago
Follow me and get five thanks​
faust18 [17]

Answer:

ty I have got them have a good day or night

4 0
3 years ago
What do the lines on a phase diagram represent?
RoseWind [281]
B. The lines show where a phase change happens to a substance
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3 years ago
You observe mothballs disappearing in cabinets. What do you think is the reason for this? Do all substances behave like mothball
cricket20 [7]

Answer: Mothballs have weak intermolecular forces.

No all substances do not behave like mothballs at normal conditions. Example: benzene , chloroform

Explanation:

Sublimation is a process of converting a substance from solid state to gaseous state without the formation of liquid at constant temperature.

A substance which undergoes sublimation is called as sublimating substance.

As mothballs is made of napthalene which has weak inter molecular forces of attraction between its molecules, it directly sublimes into gaseous state without leaving any residue and is called as a sublimating substance.

Not all substances behave like mothballs at normal conditions. Example: benzene , chloroform

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What does reaction b tell you about the type of molecule h2co3 is?
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H2o means water and co3 is co-signs
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