b. products, reactants
c. elements, atoms
d. reactants, products
The answer is letter D. Reactants, Products
K.E = mgh at bottom
K.E = 0.18*10*45
K.E = 81J
K.E at the bottom will be equal to P.E at hight.
What is the number of moles of electrons gained by 3.0 moles of lead ions?
(1) 5.0 mol (3)3.0 mol
(2) 2.0 mol (4) 6.0mol
Answer : The correct option is, (4) 6.0 mol
Explanation :
The given balanced ionic equation is,
In this reaction, lead undergoes reduction and chromium undergoes oxidation.
Half reactions of oxidation and reduction are :
Oxidation :
Reduction :
From the reduction reaction, we conclude that 6 moles of electrons gained by the 3 moles of lead ions.
Hence, the correct option is, (4) 6.0 mole
Answer:
22.4L (molar volume)
Explanation:
SO MENSURATION DOES NOT OCCUR AND THE FUSION OF SPERM AND EGG TAKES PLACE AND ZYGOTE IS FORMED