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Q#1:
A shiny, malleable substance (X), which is an excellent conductor for electricity, is burned in air to produce a white solid (Y) When this solid is placed in water, it slowly dissolves to form a colourless (colorless) solution (Z)....1
what kind of substance is X? explain....
what kind of substance is Y? explain...
what kind of substance is Z? explain....
what effect would you expect Z to have on litmus or phenophthalein indicator??..a
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Q#2:
Consider an experiment in which solid zinc metal reacts with hydrochloric acid solution in the following equation:
Zn+HCL------>ZnCl*2+H*2
What would you expect to observe as this reaction occurred?..a
What type of Reaction is that ?
how could you tell when the reaction was complete?
how could you determine whether the acid had completely reacted?
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Q#3:
if each of the following oxides were added to water, what type of solution would you expect to form?
A) Strontium oxide
B)Arsenic Oxide
C)Iodine monoxide Rubidum oxide
وسلامتكم
