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sergij07 [2.7K]
3 years ago
6

according to the periodic table, which of the following is the correct symbol for the element copper? a. cl b. cu c. co d. cr

Chemistry
1 answer:
Allushta [10]3 years ago
5 0
The symbol for copper is Cu.
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6020000 in scientific notation
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6.02 x 10^6

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Which of the following is true about homogeneous mixtures? A. They are known as solutions
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Gaseous methane (CH4) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide (CO) and gaseous water (H2O) . Suppo
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0 g.

Explanation:

Hello,

In this case, since the reaction between methane and oxygen is:

CH_4+2O_2\rightarrow CO_2+2H_2O

If 0.963 g of methane react with 7.5 g of oxygen the first step is to identify the limiting reactant for which we compute the available moles of methane and the moles of methane consumed by the 7.5 g of oxygen:

n_{CH_4}=0.963gCH_4*\frac{1molCH_4}{16gCH_4}=0.0602molCH_4\\ \\n_{CH_4}^{consumed}=7.5gO_2*\frac{1molO_2}{32gO_2}*\frac{1molCH_4}{2molO_2} =0.117molCH_4

Thus, since oxygen theoretically consumes more methane than the available, we conclude the methane is the limiting reactant, for which it will be completely consumed, therefore, no remaining methane will be left over.

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7 0
3 years ago
How many moles are in 109 grams of kf
lions [1.4K]

Answer:

Explanation:

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4 0
3 years ago
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