False
explanation
All of the elements with atomic numbers 1 to 92 can be found in nature, have stable or very long half-life isotopes, and are created as common products of the decay of uranium and thorium.
Answer:
Look at the properties of Oxygen and Silicon - the two most abundant elements in the Earth's crust - by clicking on their symbols on the Periodic Table.
Explanation:
Answer:sugar
Explanation:it is a homogeneous mixture
mol = 25/12
= 2.083 mol
1 mol = 6.02 × 10^23 atoms
2.083 mol = X
X = 2.083/1 × 6.02 × 10^23
= 1.254 × 10^24 atoms
Answer: 0.22 M
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.
moles of 
Thus moles of 
= 0.011
According to stoichiometry:
2 moles of 
require 1 mole of 
Thus 0.011 moles of require=
moles of 
Thus Molarity of 
Therefore, the molarity of in the solution is 0.22 M
