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Yakvenalex [24]
3 years ago
12

Which of the following is

Chemistry
1 answer:
AleksandrR [38]3 years ago
6 0

Answer:

distance and time are needed to find velocity

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A 40.0-mL sample of 0.100 M HNO2 (Ka = 4.6 x 10-4 .) is titrated with 0.200 M KOH. Calculate: a. the pH when no base is added b.
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____________ enables you to ride a bike without skidding and falling.
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If water is added to a 0.70 molar solution of CuSO4 what will change
lana [24]

Answer:

B. Molarity will decrease

Explanation:

Molarity is one of the measures of the molar concentration of a solution. It is calculated by dividing the number of moles of the solute by the volume of the solvent. This means that the higher the amount of solute in relation to the volume of solvent, the higher the molarity of that solution.

In essence, adding water to a solution dilutes it i.e it increases the solvent's volume in relation to the solute, causing the molarity to decrease. In a nutshell, diluting a solution (by adding water or more solvent) causes the molarity of such solution to decrease. For example, if water is added to a 0.70 molar solution of CuSO4, the molarity of the solution will DECREASE.

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in an experiment magnesium ribbon was heated in air the product formed was found heavier than original ribbon.potassium manganat
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1: due to difference in reactivity and melting point

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