Answer:
lightning candel is not a physical change.
when you light the candel the wax gets melted which cannot be reversed.
as physical change is that change in which no new substances are formed abd is reversible.
In the option above shattering the plate doesnot make any chemical change likewise cutting hair also doesnot mean so, and boiling water can be condensed.
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Answer:3
Explanation:
The three moles of S are divided by the moles in your product in this case 1 (AlS)
3/1=3
Answer:
The coefficients are 2,1,1,1
Explanation:
2HCl + Mg —> MgCl2 + H2
Answer:
false
Explanation:
it happens in light-independent reactions