6Li + N2 2Li3NIf 12 mol of lithium were reacted with excess nitrogen gas, how many moles of lithium nitride would be produced?
4.0 mol
6.0 mol
12 mol
36 mol
Answers
Answer : The correct option is, 4.0 mole
Explanation : Given,
Moles of lithium = 12 mole
The given balanced chemical reaction is:
By the stoichiometry we can say that, 6 moles of Li react with 1 mole of to give 2 moles of
As, 6 moles of lithium react to give 2 moles of lithium nitride
So, 12 moles of lithium react to give moles of lithium nitride
Therefore, the number of moles of lithium nitride produced will be 4.0 mole.
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move across the membrane to the outside of the cell.
stop moving across the membrane.
continue to move across the membrane in both directions.
move across the membrane to the inside of the cell.
Answers
will continue to move across the membrane in both directions.
i hope this helps you ( c )
have a wonderful day
~hailey lee~
(1) CuCO3(s) ==> CuO(s) + CO2(g)
(2) 2KClO3(s)==>2KCl(s) + 3O2(g)
(3) AgNO3(aq) + KCl(aq) ==>AgCl(s) + KNO3(aq)
(4) H2SO4(aq) + 2KOH(aq)==> K2SO4(aq) + 2H2O(l)
Answers
2KClO3(s)⇒2KCl(s) + 3O2(g)
K=2 K=2
Cl=2 Cl=2
O=6 O=6
Answers
Answers
When ice is placed in hot water the hot water loses its own heat while the cold water from the ice gets heat.
Answer:when you add ice to hot water, the ice melts while the hot water cools. The exchange of heat energy from the hot water causes the ice to melt.
Explanation:
Hope this helped :)
Answers
In the second century BCE, the Greek astronomer Ptolemy tried to explain the backward movement of the planets by using a solar system model that included epicycles. For centuries, this was the accepted model. During the Renaissance, Nicholas Copernicus discovered the old heliocentric model of Aristarchus. In Aristarchus’s model, the rising and setting of the Sun was explained by the movement of the Earth.
What is Heliocentric Model?
The heliocentric theory of the Solar System (aka, the heliocentric model) is a theory that places the Sun at the center of the Solar System. It also maintains that the Earth revolves around the Sun.
This theory was first proposed by Nicolaus Copernicus.
Copernicus was the first to propose a theory which differed from Ptolemy's Geocentric System, according to which the earth is at rest in the center with the rest of the planets revolving around it. The claim that all planets revolve around the sun had been raised in ancient times, but Copernicus was the first to succeed in describing the movements of the planets using an astronomical theory which placed the sun at the center.
Therefore, In the second century BCE, the Greek astronomer Ptolemy tried to explain the backward movement of the planets by using a solar system model that included epicycles. For centuries, this was the accepted model. During the Renaissance, Nicholas Copernicus discovered the old heliocentric model of Aristarchus. In Aristarchus’s model, the rising and setting of the Sun was explained by the movement of the Earth.
Learn more about Heliocentric Model, here:
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Answer:
the first blank is epicycle.
the second blank is Copernicus
the third blank is earth