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Aleksandr-060686 [28]
2 years ago
11

Help !!I can't understand it ​

Mathematics
2 answers:
siniylev [52]2 years ago
8 0

1.

a.) The color of <u>Aqueous solution</u> turns <u>light green</u> from <u>blue</u>, due to formation of <u>iron sulphate</u> .

b.) The color of the <u>Aqueous solution</u> turns <u>colorless</u> from <u>blue</u> due to formation of <u>zinc sulphate</u>.

2. <u>Bells</u> used in temples aren't made up of wood because wood isn't <u>sonorous</u> and hence can't produce <u>ringing sound</u>, and hence metals are used in making bells.

3. <u>phosphorous</u> is kept in water because it is <u>highly reactive</u> and reacts vigorously with air if left free in atmosphere .

4.

a.) CuSO4 + Mg =》MgSO4 + Cu

this is a <u>single displacement reaction</u>, where <u>Magnesium</u> being more reactive than <u>Copper</u>, displaces copper from its compound (copper sulphate) to form <u>magnesium sulphate</u>.

b. H2SO4 + Zn =》ZnSO4 + H2

this is a <u>single displacement</u><u> </u><u>reaction</u>,

where <u>Zinc</u> being more reactive than

<u>hydrogen</u>, displaces hydrogen from its

compound (sulphuric acid) to form <u>Zinc</u><u> </u><u>sulphate</u>.

Helen [10]2 years ago
7 0

<h3>1.</h3>

a.) <em><u>The color of Aqueous solution turns</u></em>

<em><u>The color of Aqueous solution turnslight green from blue, due to formation</u></em>

<em><u>The color of Aqueous solution turnslight green from blue, due to formationof iron sulphate.</u></em>

b.) <em><u>The color of the Aqueous solution</u></em>

<em><u>The color of the Aqueous solutionturns colorless from blue due to</u></em>

<em><u>The color of the Aqueous solutionturns colorless from blue due toformation of zinc sulphate.</u></em>

<h3>2.</h3>

<em><u>Bells used in temples aren't made upof wood because wood isn't sonorousand hence can't produce ringing sound,and hence metals are used in makingbells.</u></em>

<h3><em><u>3</u></em><em><u>.</u></em></h3>

<em><u>phosphorous is kept in water becauseit is highly reactive and reacts vigorouslywith air if left free in atmosphere</u></em>

<h3>4.</h3>

<em><u>a.) CuSO4+ Mg MgS04 +Cu</u></em>

<em><u>this is a single displacement reaction,where Magnesium being more reactivethan Copper, displaces copper from itscompound (copper sulphate) to formmagnesium sulphate.</u></em>

<em><u>b. H2S04 +Zn =) ZnS04+H2</u></em>

<em><u>b. H2S04 +Zn =) ZnS04+H2this is a single displacement reaction,where Zinc being more reactive thanhydrogen, displaces hydrogen from itscompound (sulphuric acid) to form Zincsulphate.</u></em>

Step-by-step explanation:

I hope it helps

have a great day

#Liliflim

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