Question

please answer this question it is very important
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Answer 1

Answer:

Given \: simple \: equation :Givensimpleequation:

5 - 3(5y+2) = 4(7-3y) + 15−3(5y+2)=4(7−3y)+1

\implies 5 - 15y - 6 = 28 - 12y + 1⟹5−15y−6=28−12y+1

\implies - 15y - 1 = 29 - 12y⟹−15y−1=29−12y

\implies - 15y = 29 - 12y + 1⟹−15y=29−12y+1

\implies - 15y = 30 - 12y⟹−15y=30−12y

\implies - 15y + 12y = 30⟹−15y+12y=30

\implies - 3y = 30⟹−3y=30

\implies y = \frac{30}{(-3)}⟹y=(−3)30

\implies y = -10⟹y=−10

Therefore.,

\red{ Value \: of \: y } \green {= -10}Valueofy=−10

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Answer 2

Answer:

1. CuSO4 (aq) + Zn (S) = Cu (S) + ZnSO4 (aq) is an example of. CuSO4 (aq) + Zn (S) = Cu (S) + ZnSO4 (aq) is an example of metal displacement reaction.
2. SO2 + H2O → H2SO3 - Balanced equation | Chemical Equations online!
3. 2 Mg + O2 → 2 MgO - Balanced equation | Chemical Equations online

Explanation:

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