Answer:The new volume will be
0.7 L
Explanation:
This is an example of Charles' law, sometimes called the temperature-volume law. It states that the volume of a gas is directly proportional to the Kelvin temperature, while pressure and amount are held constant.
The equation is
V
1
T
1
=
V
2
T
2
, where
V
is volume and
T
is temperature in Kelvins.
Known
V
1
=
0.5 L
T
1
=
20
∘
C
+
273.15
=
293 K
T
2
=
150
∘
C
+
273.15
=
423 K
Unknown
V
2
Solution
Rearrange the equation to isolate
V
2
. Substitute the known values into the equation and solve.
V
2
=
V
1
T
2
T
1
V
2
=
(
0.5
L
×
423
K
)
293
K
=
0.7 L
rounded to one significant figure
B is the answer
<span>least 20 characters </span>
4 mutations occured, as four letter we're different 25 million years later. Over one hundred years we can expect it to mutate at the sane rate, but 4 times longer. 4 time 4 is 16 mutations over 100 million years
Answer: 6.71 g
Explanation: 
Limiting reagent is the reagent which limits the formation of product. Excess reagent is one which is in excess and thus remains unreacted.
Thus lithium is the limiting reagent and nitrogen is the excess reagent.
As can be seen from the balanced chemical equation, 6 moles of lithium reacts with 1 mole of nitrogen to give 2 moles of lithium nitride.
Thus 0.578 moles of lithium react with 0.096 moles of nitrogen.
6 moles of lithium give = 2 moles of lithium nitride
Thus 0.578 moles of lithium give=
of lithium nitride.
Mass of lithium nitride 
Mass of lithium nitride
=
Answer:
b. the layer of oxide formed on statues made of metal
Explanation:
Chemical weathering is a process whereby rocks are disintegrated or weathered causing a chemical reaction thereby leading to change in the parent rock constituents .
In chemical weathering a new substance is usually formed after the weathering takes place.
From the question the layer of statue made by metal will likely form oxides of those metals. Example Silver will react with oxygen to form an entirely new substance like silver(i)oxide.
