No they're closer due to the oxygen in the water
Answer:
Newton's First Law of Motion: Any object remains in the state of rest or in uniform motion along a straight line, until it is compelled to change the state by applying external force.
Newton's Second Law of Motion: The rate of change of momentum is directly proportional to the force applied in the direction of force.
Newton's Third Law of Motion: There is an equal and opposite reaction for evrey action
Answer:
O a 2 in front of hydrochloric acid
Explanation:
the given reaction is :-
=》Zn + 2 HCL -> ZnCl2 + H2
since, mass can't be created or destroy, so number of hydrogen atoms in the reaction should be equal in product as in reaction.
so, there is 2 hydrogen in product hence there are two hydrogen in the reactants also.
it is showed in the reaction by putting a 2 in front of hydrochloric acid ( HCl ).
Answer:
0.05 mol
Explanation:
Moles = Mass / Mr (Relative formula mass)
Ar of aluminium = 27
Ar of sulphur = 32
Ar of oxygen = 16
Mr of Al2(S2O3)2 = (27×2)+((32×2)×3)+((16×3)×3)= 390
Moles = 18.5g / 390
Moles = 0.05 mol
usibility is the correct once...........................................
