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d1i1m1o1n [39]
3 years ago
7

A solid and a liquid are shaken together in a test tube to produce a clear blue liquid. Which of the following best describes th

e behavior of the above pair of substances?
Chemistry
1 answer:
harkovskaia [24]3 years ago
6 0
<span>the behavior of the above pair of substances</span> is soluble

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As you move from left to right across a period, what happens to the atomic radil?
egoroff_w [7]

Answer:

Moving Across a Period

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How many moles of copper are needed to react with sulfur to produce 0.25 moles Ol
Tems11 [23]

Answer:

                       0.50 moles of Cu

Explanation:

                    The balanced chemical equation for given synthetic reaction is,

                                          2 Cu + S → Cu₂S

According to balance chemical equation,

                  1 mole of Cu₂S is produced by  =  2 moles of Cu

So,

          0.25 moles of Cu₂S will be produced by  =  X moles of Cu

Solving for X,

                      X  =  0.25 mol × 2 mol /  1 mol

                      X  =  0.50 moles of Cu

Hence, as the molar ratio of Cu to Cu₂S is 2:1 hence, to produce 0.25 moles of Cu₂S we will need 0.50 moles of Cu.

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What type of chemical bond holds NaCI, an ionic crystal, together?
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and

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