Answer:
11.58 g
Explanation:
First we convert the given masses of both reactants into moles, using their respective molar masses:
- 6.89 g CaO ÷ 56 g/mol = 0.123 mol CaO
- 13.79 g H₂O ÷ 18 g/mol = 0.766 mol H₂O
As<em> 1 H₂O mol reacts completely with 1 CaO mol,</em> and there are more H₂O moles than CaO moles, water is the non limiting reactant.
We calculate the mass of the reacting moles of water (the same number of CaO moles, 0.123):
- 0.123 mol H₂O * 18 g/mol = 2.21 g
Finally we <u>calculate how many grams of water remained after the reaction</u>:
- 13.79 g - 2.21 g = 11.58 g
It's -Bohr's Model- becuase Dalton I dont think did a model. Thomson's was the "Plum Pudding Model." Ernest Rutherford drew one out(I dont know i dont have a model down though) so it the only one left is Dalton's Model which is it. (Hopefuly)
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It seems that you have missed to attach the given image for us to answer this question, but anyway, here is the answer. Based on the picture of a box which is motionless, the resulting motion of the box would be option B. The box will move to the left. Hope this answer helps.
Answer:
A
Explanation:
I believe it's A gggggg%gggggtggg