Probably About 2 or 3 more
Answer: The 3rd one
Explanation: Electronegativity is a measure of how strongly atoms attract bonding electrons to themselves.
I might be wrong
The decay and compression of organic material millions of years ago resulted in extremely fertile soil that helped large rain forests to grow. This describes the way energy and matter are recycled within an ecosystem. This organic material goes into the ground, feeds it, and in turn makes it fertile so that various types of trees and plants can grow from it.
Answer: 0.297 moles of calcium carbonate.
Solution:
Number of moles of HCl = moles
According to reaction
Two moles of HCl are reacting with one mole of , then 0.6 moles of HCl will react with:
=
Moles of calcium carbonate reacted = 0.3 moles
In 0.3 moles of calcium carbonate 10% impurities is present i.e.
of impurity.
Actual number of moles of calcium carbonate reacted = 0.3 - 0.003 = 0.297 moles.
Answer:
It indicates that the ratio of the particles in the composition of the sample will always be 2:1 with Hydrogen: Sulfur