Lithium has 1 valence electron available for bonding. So its A.
Answer:
The correct answer would be - c. A solid was added to water and the mixture was stirred until the solid was no longer visible
Explanation:
Photostabalizing is the process where a solid change its color in the presence of ultraviolet light, it is a chemical change, so the first option would not be the correct answer.
when two liquid or aqueous solutions are mixed together and form a solid substance, this reaction is known as precipitation and it is a chemical reaction too.
When a solid is placed in a liquid and after stirring it makes the solid vanish is a physical change known as dissolving character.
Thus, the correct answer is option C.
Answer: New concentration of is 0.23 M.
Explanation:
The given data is as follows.
Moles of = 0.06 mol
Moles of = 0.08 mol
Therefore, moles of added are as follows.
Moles of =
= 0.003125 mol
Now, new moles of = 0.06 + 0.003125
= 0.063125
Therefore, new concentration of will be calculated as follows.
Concentration =
= 0.23 M
Thus, we can conclude that new concentration of is 0.23 M.
Answer:
the molecular formula of paradichlorobenzene is C6H4CL2
yes because you have 2 H 2Na 2O on both sides