Explanation:
option A skeleton system is correct option
hope this helps you !
When fireworks go off, they produce smoke, which is evidence of a new substance being created.
Answer:
Explanation:
In the solution of AB , they are split to give ions as follows
AB ⇄ A⁺ + B⁻
Product of concentration of A⁺ and B⁻ in saturated solution of AB is constant .
This is called Ksp
Ksp = [A⁺] [ B⁻]
If product of concentration of A⁺ and B⁻ exceeds Ksp , the equilibrium shifts to the left side and excess ions come out of solution in the form of precipitate. So second option is the answer.
Selective breeding, also known as artificial selection, is a process used by humans to develop new organisms with desirable characteristics. Breeders select two parents that have beneficial phenotypic traits to reproduce, yielding offspring with those desired traits.
Answer : The number of moles of water produced are, 4.4 moles.
Explanation : Given,
Moles of oxygen gas = 2.2 moles
The given chemical reaction is:
By the stoichiometry we can say that, 2 moles of hydrogen gas react with 1 mole of oxygen gas to give 2 moles of water as a product.
From the balanced chemical reaction we conclude that,
As, 1 mole of oxygen gas react to give 2 moles of water.
So, 2.2 mole of oxygen gas react to give 
moles of water.
Thus, the number of moles of water produced are, 4.4 moles.
