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Ugo [173]
3 years ago
13

Is graph paper a homogeneous or heterogeneous mixture

Chemistry
1 answer:
labwork [276]3 years ago
4 0

Answer:

There is no chemical symbol for paper since it is not an element but rather a mixture of several different compounds. Mixtures in two or more phases are heterogeneous mixtures.

Explanation:

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3 0
3 years ago
• identify early ideas about evolution
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4 0
3 years ago
Read 2 more answers
Which noble gas is closest to magnesium
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3 0
3 years ago
What are the respective concentrations (M) of Cu2+ and Cl- afforded by dissolving 2.0 g of CuCl2 in water and diluting to 500 mL
Rom4ik [11]

Answer:

M_{Cu^{2+}}=0.030M \\\\M_{Cl^-}=0.060M

Explanation:

Hello.

In this case, the first step is to compute the moles of copper (II) chloride (molar mass: 134.45 g/mol) in 2.0 g as follows:

n_{ClCl_2}=2.0CuCl_2*\frac{1molCuCl_2}{134.45gCuCl_2} =0.015molCuCl_2

Thus, since one mole of copper (II) chloride contains 1 mole of copper (its subscript) and 2 moles of chloride (its subscript), those moles are respectively:

n_{Cu^{2+}}=0.015molCuCl_2*\frac{1molCuCl_2}{1molCuCl_2} =0.015molCu^{2+}\\\\n_{Cl^-}=0.015molCuCl_2*\frac{2molCl^-}{1molCuCl_2} =0.030molCl^-

Therefore, the concentrations (in molar units) considering the volume in liters of the solution (0.500 L for 500 mL) are:

M_{Cu^{2+}}=\frac{0.015molCu^{2+}}{0.500L}=0.030M \\\\M_{Cl^-}=\frac{0.030molCu^{2+}}{0.500L}=0.060M

Best regards.

5 0
3 years ago
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