Answer:
Excited state is the name of the state when electrons absorb energy and move to a higher energy level.
Explanation:
Answer;
-Not that reactive
The element found is not very reactive.
Explanation;
-If an element is found in nature in its pure elemental state then the the element found is not very reactive.
-There are many elements which are not much reactive. such as in metals- Ag, Au, Hg, Cu etc. and in Non metals- O2, N2, Inert gases etc.
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For checking its chemical properties you will have to examine it with O2 or C-12.
Answer: 0.14 mole C2H2
Explanation: solution attached:
Derive n from PV= nR
n= PV/RT
= 1 atm ( 3.25 L) / (0.08205 L.atm/mol.K) ( 273 K)
= 0.14 mole C2H2
This one is Fluorine since it is to the right of N
Answer:
1.428 moles
Explanation:
If 0.0714 moles of N2 gas occupies 1.25 L space,
how many moles of N2 have a volume of 25.0 L?
Assume temperature and pressure stayed constant.
we experience it 0.0714 moles: 1.25L space
x moles : 25L of space
to get the x moles, cross multiply
(0.0714 x 25)/1.25
1.785/1.25 = 1.428 moles