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6Sanjana
@6Sanjana
September 2021
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solve this question fast
I will mark as brainliest for best answer
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Anupam447
For a. Sodium(Na):-Sodium metal reacts rapidly with water to form a colourless solution of sodiumhydroxide (NaOH) and hydrogen gas (H2).
Na + H2O →NaOH + H2
Now as per the law of conservation of mass, mass is neither created nor destroyed in a chemical reaction. So, the equation should be balanced.
Balancing the equation we haveK
2Na+ 2H2O → 2NaOH + H2
b. for calcium Calcium has periodic symbol “Ca”
water is a compound “H2O”
calcium react with water on contact, forming Calcium hydroxide (CaOH)2 and Hydrogen H2.
the reaction gives off heat, but is a much slower reaction than other alkaline metals.
from memory (I haven’t studied chemistry for 15 years!)
The equation looks something like below:
Ca + H2O > 2 CaOH + H2
c. for cobalt d.for nitrogenN2 + 3H2 → 2NH3 e.for sulphur h2 + s_h2s f.chlorinereaction between hydrogen and chlorine gas?
H2+Cl2⇒2HCl
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Answers & Comments
Na + H2O →NaOH + H2
Now as per the law of conservation of mass, mass is neither created nor destroyed in a chemical reaction. So, the equation should be balanced.
Balancing the equation we haveK
2Na+ 2H2O → 2NaOH + H2
b. for calcium Calcium has periodic symbol “Ca”
water is a compound “H2O”
calcium react with water on contact, forming Calcium hydroxide (CaOH)2 and Hydrogen H2.
the reaction gives off heat, but is a much slower reaction than other alkaline metals.
from memory (I haven’t studied chemistry for 15 years!)
The equation looks something like below:
Ca + H2O > 2 CaOH + H2
c. for cobalt d.for nitrogenN2 + 3H2 → 2NH3 e.for sulphur h2 + s_h2s f.chlorinereaction between hydrogen and chlorine gas?
H2+Cl2⇒2HCl