Answer:The height of the image is -6 mm.
Explanation;
Distance of the object form the lens = u = 12 mm
Distance of the image formed from the lens = v = 4 mm
Height of the object = 18 mm=
The magnification is given by :
= Height of an image and object respectively.
The height of the image is -6 mm.The image formed is real and negative sign signifies that image is inverted.
2. The reactant in excess is any reactant that occurs in a quantity greater than that is required to completely react with the limiting reactant.
3. The amount of product can be calculated based on the amount of limiting reactant.
Answer :
(1) The limiting reactant is the reactant that is completely consumed in a chemical reaction. → True
(2) The reactant in excess is any reactant that occurs in a quantity greater than that is required to completely react with the limiting reactant. → True
(3) The amount of product can be calculated based on the amount of limiting reactant. → True
Explanation :
Excess reagent : It is defined as the reactants not completely used up in the reaction. The given moles are more than the required moles.
Limiting reagent : It is defined as the reactants completely used up in the reaction. The given moles are less than the required moles.
Theoretical yield : It is calculated from the amount of the limiting reagent present in the reaction.
Actual yield : It is experimentally determined.
All the given statements are true.
The limiting reactant is the reactant that is completely consumed in a chemical reaction. The reactant in excess is any reactant that occurs in a quantity greater than that required to completely react with the limiting reactant. The amount of product can be calculated based on the amount of limiting reactant.
1. True. The limiting reactant is the reactant that is completely consumed in a chemical reaction. It determines the amount of product that can be formed.
2. True. The reactant in excess is any reactant that occurs in a quantity greater than that required to completely react with the limiting reactant.
3. True. The amount of product can be calculated based on the amount of limiting reactant using stoichiometry.
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b. False
The answer would be (a.)True.