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atroni [7]
2 years ago
8

Can someone help me please ?

Chemistry
1 answer:
zvonat [6]2 years ago
4 0

Answer:

1.w

2. Z

3. Y

4.X

...................

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A compound containing chromium, Cr; chlorine, Cl; and oxygen, O, is analyzed and found to be 33.6% chromium, 45.8% chlorine, and
Assoli18 [71]

Answer

The empirical formula is CrO₂Cl₂

Explanation:

Empirical formula is the simplest whole number ratio of an atom present in a compound.

The compound contain, Chromium=33.6%

                                         Chlorine=45.8%

                                          Oxygen=20.6%

And the molar mass of Chromium(Cr)=51.996 g mol.

                 Chlorine containing molar mass (Cl)= 35.45    g mol.

                 Oxygen containing molar mass (O)=15.999  g mol.

Step-1

 Then,we will get,

Cr=\frac{1}{51.996} \times33.6=0.64 mol

Cl= \frac{1}{35.45} \times45.8=1.29 mol.

O=\frac{1}{15.99} \times=1.28 mol.

Step-2

Divide the mole value with the smallest number of mole, we will get,

Cr= \frac{0.64}{0.64} =1

Cl= \frac{1.29}{0.64} =2

O= \frac{1.28}{0.64} =2

Then, the empirical formula of the compound is CrO₂Cl₂ (Chromyl chloride)

4 0
3 years ago
Read 2 more answers
HELP MEE PLEASEE Marco put a pot of water on to boil eggs. After a few minutes, all the water was gone. This is an example of wh
djverab [1.8K]

Answer:

Evaporation

Explanation:

The water evaporated when heat was added causing the water to go.

3 0
2 years ago
Read 2 more answers
3. The diet of white-tailed deer consists primarily of shrubs. Sika are
olga_2 [115]
Sika have more food choices because they eat both grasses and shrubs, compared to the white-tailed dear who only eats shrubs.
3 0
2 years ago
Consider the reaction below:
melisa1 [442]

Answer:

(A) first order reaction

Explanation:

A first order reaction is a type of reaction in which the rate of the reaction depends only on the concentration on one of the reactants. Since A is the only reactant we have, it is right to deduce that this reaction is a first order reaction.

Note: while the order of this reaction is 1, its molecularity is 2. The molecularity of a reaction is the number of moles of reactants that is actually reacting.

(B) is wrong

This is because a zero order reaction is one in which the rate of reaction is not influenced by the concentrations of the reactants and hence remains constant irrespective. Since we were not furnished with this idea in the question, it is only right that we reject this answer.

(C) is wrong.

C is outrightly wrong as we have only one reactant.

(D) is wrong

We have only one reactant.

6 0
3 years ago
Help me due tomorrow :,)
lesya [120]

#a

  • Zinc displaces copper

It means

  • Zinc is more reactive than copper

#b

  • Zinc+Copper sulphate--> Zinc sulphate+Copper

#c

No reaction because

  • Magnesium is more reactive than zinc

#d

Reaction occurs

  • Iron is more reactive than copper
  • Magnesium is more reactive than iron

Order:-

  • Cu<Fe<Zn<Mg
3 0
2 years ago
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