If the buret is dirty, it will react with the NaOH in the buret and will cause your concentration to be off.
I think the correct answers from the choices listed above are the first, third and the last option. Ionic compounds are compounds that dissociates into ions when in aqueous solution. From the list, NH4Cl, KF and MgO are the ionic compounds. Hope this answers the question.
The 2 parts or components that make up a solution would be the solute and the solvent.
An electron has a negative charge of one
An neutron has no charge (hence, neutral)
An proton has a positive charge of one
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Answer:
Coating a material with metal
(SInce the glasses will be coated with gold.)
