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Oh, so you're taking the movement of the block = 10 cm as hypotenuse. I get it.Trigonometry.
sin 30 = h / 10
h = 5 cm
It seems logical enough. Good Attempt.
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Oh, so you're taking the movement of the block = 10 cm as hypotenuse. I get it.Trigonometry.
sin 30 = h / 10
h = 5 cm
God knows!! I've tried to find the possible solution but to no avail.Is the answer B? 1.1 m/s ? Maybe I've got it.
One Question..How do we separate a mixture of two soluble salts??
Consider this equation: Ba(NO3)2 + MgCl2 ----> BaCl2 + Mg(NO3)2
Tell me whether the reaction is possible..OR NOT
what is the order of reactivity of negative ions such as sulphate, nitrate, chloride, iodide, carbonate
how do u find them n is it important to know it
what is the order of reactivity of negative ions such as sulphate, nitrate, chloride, iodide, carbonate
how do u find them n is it important to know it
to your first question it depends on two factorsOne Question..How do we separate a mixture of two soluble salts??
Consider this equation: Ba(NO3)2 + MgCl2 ----> BaCl2 + Mg(NO3)2
Tell me whether the reaction is possible..OR NOT
From what I know catalyst do take part in a reaction, (like they are lowering the activation energy.) but they only remain chemically unchanged after a reaction. That's why it is A :/16
Which statement about catalysts is correct for a typical equilibrium reaction?
A A catalyst can be either an inorganic or an organic species.
B A catalyst does not take part in the reaction.
C A catalyst only speeds up the forward reaction.
D A catalyst provides the energy required to start a reaction.
Why in the world is the answer A and NOT B
16
Which statement about catalysts is correct for a typical equilibrium reaction?
A A catalyst can be either an inorganic or an organic species.
B A catalyst does not take part in the reaction.
C A catalyst only speeds up the forward reaction.
D A catalyst provides the energy required to start a reaction.
Why in the world is the answer A and NOT B
From what I know catalyst do take part in a reaction, (like they are lowering the activation energy.) but they only remain chemically unchanged after a reaction. That's why it is A :/
thankscatalyst does take part in the reaction.....but aftr the reaction it is chemicaly same to wich v added before the reaction...thus ans is A not B !
Fractional distillation methodOne Question..How do we separate a mixture of two soluble salts??
Consider this equation: Ba(NO3)2 + MgCl2 ----> BaCl2 + Mg(NO3)2
Tell me whether the reaction is possible..OR NOT
What i think is that for titration all reactants and product are soluble.. right so here ammonium sulphate is only soluble here.Then the answer must be A.18
Which salt can be prepared by an acid-alkali titration method?
A ammonium sulphate
B copper(II) sulphate
C iron(II) sulphate
D zinc sulphateg
anyone please?
You must know that ZN(OH)2 is the white precipitate..The precipitate is insoluble.that is the correct answer. But what about d? Zn(OH)2 + H2SO4 = ZnSO4 + H2O?
You must know that ZN(OH)2 is the white precipitate..The precipitate is insoluble.
Zn(OH)2 is precipitate.--- The emergence of the insoluble solid from solution is called precipitation.
A is the answer. We make ammonium salts and group 1 salts using titration.18
Which salt can be prepared by an acid-alkali titration method?
A ammonium sulphate
B copper(II) sulphate
C iron(II) sulphate
D zinc sulphate
anyone please?
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