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Tamiku [17]
3 years ago
14

What term best describes the copper in a mixture of 92 percent silver and 8 percent copper?

Chemistry
1 answer:
JulijaS [17]3 years ago
6 0
I believe its an Alloy. :)
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Salicylic acid (C7H6O3) reacts with acetic anhydride (C4H6O3) to form acetylsalicylic acid (C9H8O4). 2C7H6O3(aq) + C4H6O3(aq) mc
olga nikolaevna [1]
In order to understand what is the limiting reactant is useful to convert the masses of reactants into moles. The molecular masses are:

C_7H_6O_3 = 138\frac{g}{mol}\\ C_4H_6O_3 = 100\frac{g}{mol}

Converting masses into moles:

70\g \C_7H_6O_3\cdot \frac{1\ mol}{138\ g} = 0.5\ mol\ C_7H_6O_3

80\ g\ C_4H_6O_3\cdot \frac{1\ mol}{100\ g} = 0.8\ mol\ C_4H_6O_3

In the reaction, 2 moles of C_7H_6O_3 are necessary to react with 1 mol of C_4H_6O_3. Following this ratio:

0.8\ mol\ C_4H_6O_3\cdot \frac{2\ mol\ C_7H_6O_3}{1\ mol\ C_4H_6O_3} = 1.6\ mol\ C_7H_6O_3

We have only 0.5 mol of C_7H_6O_3, i.e, we don't have enough amount of salicylic acid, therefore, this is the limiting reactant.
3 0
3 years ago
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5 sentences about industries​
sladkih [1.3K]

Answer:

An industry is a sector that produces goods or related services within an economy. The major source of revenue of a group or company is an indicator of what industry it should be classified in.

Explanation:

5 0
3 years ago
A) Which of the following equations model the law of conservations of mass? Ca + 2HCI - H2 + CaCl2 or
nydimaria [60]

Answer:

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Explanation:

For these problems, it is best to label and record how many of each element are on each side of the equation. The first equation has 1 Ca, 2H, and 2Cl on both sides while the second equation has 3H on the left and 2H on the right making the second equation incorrect.

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Mark the lime poor conducter of heat and electricity.

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Yes why no ,Xenon is already has its secured place in modern periodic table.

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4 0
2 years ago
Not the best in chemistry please help
aliya0001 [1]
The answer is B the highest point
3 0
3 years ago
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