Which element must be present in an organic compound?(1) hydrogen (3) carbon(2) oxygen (4) nitrogen
2 answers:
CARBON is the element that must be present in an organic compound.
the answer is 3) carbon
main component of organic compounds are the element carbon
C forms covalent compounds with other C atoms and form long chains resulting in forming compounds that are very useful to us in our day to day life
human body is made of 4 types of organic molecules.
C covalently bonds with other atoms such as H, O and N etc. forming a large array of useful compounds
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The answer is 1, 1 , 1 because that will balance out the equation and make them equal
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HNO₃(aq) + NaOH(aq) → NaNO₃(aq) + H₂O(l)
H⁺ + NO₃⁻ + Na⁺ + OH⁻ → Na⁺ + NO₃⁻ + H₂O
H⁺ + OH⁻ → H₂O (the net ionic equation)
The control rod directs it
Explanation:
The value of equilibrium constant doesn't change when a catalyst is added.
Equilibrium constant depends on Concentration of reactants , Pressure and Temperature.
