Explanation:
(Ques- A) Why does the first method for determining volume work only for a regular-shaped object?
<u>(Ans- A)</u> <em>Because the method requires precise dimensions of objects for result, which is not possible for irregular shaped objects.</em>
(Ques - B) Will the second method for determining volume work for any object or just an odd-shaped one? Why?
<u>(Ans-B)</u> <em>It will work for both regular and irregular shaped objects since both displace equal volumes of water.</em>
(Ques - C) Is one method of measurement more accurate than the other? Why or why not?
<u>(Ans-C)</u> <em>Both are pretty accurate, with some experimental errors which may creep in accidentally. </em>
(Ques- D) Would the displacement method of measurement work for a cube of sugar? What about a cork? Why?
<u>(Ans - D)</u> <em>No, the method would not work because sugar being soluble, will dissolve in water. </em>
<em>No, the method would not work because sugar being soluble, will dissolve in water. Cork is less dense than water so floats on it, with only part of it submerged in water, resulting in displacement of less volume of water than actual volume of Cork.</em>
(Ques-E) What did you find out from this investigation? Be thoughtful in your answer.
<u>(Ans- E)</u> <em>I learnt about determining volume of different objects from this investigation. </em>(Sorry, I know its not a very thoughtful answer)
Answer:
1921 :3 espero y te ayude crack
Answer: i. The reaction consumes 3 moles of iron(III) oxide.
ii. The reaction produces 3 moles of aluminum oxide and 6 moles of iron.
Explanation:
The balanced reaction is :
According to stoichiometry:
a) 2 moles of aluminium consume = 1 mole of 
6 moles of aluminium consume = 
moles of
b) 2 moles of aluminium produce = 1 mole of 
6 moles of aluminium consume = moles of
2 moles of aluminium produce = 2 moles of 
6 moles of aluminium consume = 
moles of
HCl + NaOH = NaCl + H2O. so it will be sodium chloride and water
