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12345 [234]
3 years ago
7

Olivia bought new gym shoes to play volleyball because she kept slipping when she ran in her old shoes. How will the new soles h

elp solve the problem?
Chemistry
2 answers:
HACTEHA [7]3 years ago
6 0
Maybe her old shoes had soft worn out bottoms and she slips in them. So her new shoes had more grip than her old ones so they kept her from falling.
AlexFokin [52]3 years ago
6 0

Answer:

The correct answer is by adding surface roughness to increase friction.

Explanation:

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An aqueous solution of sodium sulfide is allowed to react with an aqueous solution of magnesium chloride.
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Answer : The correct option is, (b) 2Na^+

Explanation :

Complete ionic equation : In complete ionic equation, all the substance that are strong electrolyte and present in an aqueous are represented in the form of ions.

Net ionic equation : In the net ionic equations, we are not include the spectator ions in the equations.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

The balanced molecular equation will be,

Na_2S(aq)+MgCl_2(aq)\rightarrow 2NaCl(aq)+MgS(s)

The complete ionic equation in separated aqueous solution will be,

2Na^+(aq)+S^{2-}(aq)+Mg^{2+}(aq)+2Cl^{-}(aq)\rightarrow 2Na^+(aq)+2Cl^{-}(aq)+MgS(s)

In this equation the species Na^+\text{ and }Cl^{-} are the spectator ions.

Hence, the complete ionic equation contains specie is 2Na^+

4 0
3 years ago
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