C. Homogeneous mixtures These alloys are homogeneous mixtures because they have a uniform composition throughout.
Answer:
<h2>A.EARTH PASSES BETWEEN THE SUN AND THE MOON</h2>
Explanation:
When Earth passes directly between Sun and Moon, its shadow creates a lunar eclipse.
pabrainliest po plss:)
The answer to your question is true.
H2SO4
oxidation number of hydrogen :- +1
oxidation number of oxygen :- -2
if oxidation number of H2SO4 is x
2x (+1) + x + 4x (-2) = 0
+ 2 + x -8 = 0
x = +6
<u>oxidation number of H2SO4 :- +6</u>
Answer:
0.075 moles of product formed.
Explanation:
Given data:
Number of moles of oxygen = 0.30 mol
Number of moles of oxygen = 0.15 mol
Number of moles of product formed = ?
Solution:
Chemical equation:
4Na + O₂ → 2Na₂O
Now we will compare the moles of Na₂O with oxygen and sodium.
Na : Na₂O
4 : 2
0.15 : 2/4×0.15 = 0.075 mol
O₂ : Na₂O
1 : 2
0.30 : 2/1×0.30 = 0.6 mol
Less number of moles of Na₂O are produced by sodium thus it will limit the yield of Na₂O and act as limiting reactant while oxygen is in excess.
