3 years ago

The is the rate which a substance undergoes a chemical change

Chemistry

1 answer:

choli [55]3 years ago

6 0

Reaction Rate is the rate at which a substance undergoes a chemical change.

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Solid lithium iodide decomposes into solid lithium and iodine gas . Write a balanced chemical equation for this reaction.

olga_2 [115]

<span>Balanced chemical equation is :
2LiCl(s) ----> 2Li(s) + Cl2(g)
</span>

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2 years ago

A cube has a depth of 10 cm. What is the volume of the cube?<br><br>Or<br><br>What is depth?

PolarNik [594]

depth = side/lenght

the cube has all congruent sides

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How many isomers with a molecular formula of c6h10 contain an internal alkyne?

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2 years ago

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You have 16.0 g of some compound and you perform an experiment to remove all of the oxygen, 11.2 g of iron is left. What is the

Makovka662 [10]

The empirical formula of this compound is $Fe_2O_3$

<h3>Empirical formula </h3>

To calculate the empirical formula of a compound, the value of moles of each element is needed.

As we have the information of the mass value, we will use the molar mass expression, which corresponds to:

$MM_O = 16g/mol\\MM_Fe = 55.8g/mol$

$MM = \frac{m}{mol}$

$16 = \frac{4.8}{x}$

$x = 0.3mol$

$55.8=\frac{11.2}{x}\\x = 0.2$

As the value of the empirical formula must be an integer, simply multiply the two values by a common factor:

$O = 0.3 \times 10 = 3\\Fe = 0.2 \times 10 = 2$

$Fe_2O_3$

So, the empirical formula of this compound is $Fe_2O_3$ .

Learn more about empirical formula: brainly.com/question/1247523

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2 years ago