Explanation:
<h3>The mixture in which the particles of the components of solute and solvent are equally mixed is called homogeneous mixture. </h3>
Answer:
Friction
Explanation:
the resistance that one surface or object encounters when moving over another.
Answer:
rock is the correct answer
Explanation:
Answer:
Observations of the sky allowed explorers to mark the passage of time both in hours and through the months of the year. Early astronomers also realized that the night sky does not look the same from different places on the Earth.
The reaction is (a reação é)
(C6H4(OH)2(aq) + H2O2(aq) --> C6H4O2(aq) + H2O(L) ........(i)
The other reaction given are (A outra reação dada é)
C6H4(OH)2(aq) ---> C6H4(OH)2(aq) + H2(g) .......(ii) ΔH = 177 kJ
2H2O2(aq) ----> 2H2O(l) + O2(g) ..................................(iii) ΔH = -189.3
2H2(g) + O2(g) ----> 2H2O (l) .....................................(iv) ΔH =-572 kJ
We can obtain equation (i) from equation (ii), (iii) and (iv) as
[Podemos obter a equação (i) da equação (ii), (iii) e (iv) como]
equation (i) = equation (ii) + 0.5 X equation (iii) + 0.5 X equation (iv)
[equação (i) = equação (ii) + 0.5 X equação (iii) + 0.5 X equação (iv)]
So ΔH1 = ΔH(ii) + 0.5 X ΔH(iii) + 0.5 X ΔH(iv)
= 177 + 0.5 X (-189.3) + 0.5 X(-572) = -203.65 kJ
