names,symbols and valencies of 118 elements
the percentage of Se in peroxidase enzyme is 0.5% by mass (atomic mas of Se = 78.4 amu ). then what is minimum molecular mass of the enzyme which contains not more than 1 Se atom ?
what is the difference between true solution,suspension,colloids
HOW TO SEPARATE:-
1. black copper oxide from a mixture of copper oxide and zinc oxide.
2. to separate CO from amixture of CO and CO2.
Explain;
when ammonium nitrate is dissolved in water contained in a beaker,it becomes cold
hoe to write chemical formulae for simple compounds?
WHY IS AMMONIUM CHLORIDE AND SALT REMOVED BY SUBLIMATION ONLY
whata are the latin names of first 20 elements?
when ammonium chloride is heated in a test tube a white deposit appears at the top of the tube explain
What is tyndall effect and brownian movement ? Please give answer at the earliest possible.
sulphuric acid is added to water .will you get a mixture or a compound.why
state any two difference between distillation and fractional distillation
Why are non metals bad conductors of heat and electricity?
how is gold separated from mixture of gold and copper filings
1)Zinc is non-ductile and non-malleable.
2) Sodium & Potassium r soft solids.
3) Lead has low melting point.
STILL Y THESE R CONSIDERED AS "METALS"?
names,symbols and valencies of 118 elements
the percentage of Se in peroxidase enzyme is 0.5% by mass (atomic mas of Se = 78.4 amu ). then what is minimum molecular mass of the enzyme which contains not more than 1 Se atom ?
what is the difference between true solution,suspension,colloids
HOW TO SEPARATE:-
1. black copper oxide from a mixture of copper oxide and zinc oxide.
2. to separate CO from amixture of CO and CO2.
Explain;
when ammonium nitrate is dissolved in water contained in a beaker,it becomes cold
hoe to write chemical formulae for simple compounds?
WHY IS AMMONIUM CHLORIDE AND SALT REMOVED BY SUBLIMATION ONLY
whata are the latin names of first 20 elements?
when ammonium chloride is heated in a test tube a white deposit appears at the top of the tube explain
What is tyndall effect and brownian movement ? Please give answer at the earliest possible.
sulphuric acid is added to water .will you get a mixture or a compound.why
state any two difference between distillation and fractional distillation
Why are non metals bad conductors of heat and electricity?
how is gold separated from mixture of gold and copper filings
1)Zinc is non-ductile and non-malleable.
2) Sodium & Potassium r soft solids.
3) Lead has low melting point.
STILL Y THESE R CONSIDERED AS "METALS"?