The answer is D. This is because liquids take up the shape of the container they are in, so it is never definite. Where as solids stay the same shape.
Answer:
Explanation:
Pellet form of NaOH is highly hygroscopic . It absorbs moisture from air and its weight is increased by the time one tries to weigh one gram of it . Moreover it also reacts with carbon dioxide gas of atmosphere to form sodium carbonate .
2 NaOH + CO₂ = Na₂CO₃ + H₂0.
It also increases its weight .
Answer:
The correct answer is - 1/4096.
Explanation:
In the starting, there is that the number of atoms is N
0
.
The number of half-lives in this case, = 300/ 25 = 12
After the first half-lives or 25 days, N
1
=
N
0
/2
the half life is that time where half of the sample had decay.
After the second half-life or 50 days, N
2
=
N
1
/2 =
N
0
/4
.
There is division by two the original amount, then after four times you divide four times for 2 that means that you divide by 2
^12 =4096
.
So the final amount remain is N
12
=
N
0
/4096 or 1/4096.
The correct answer is Li + ZnCO₃.
As lithium is very active, so the reaction that takes place most likely is Li + ZnCO₃. As lithium is more reactive than zinc, thus, it possesses the tendency to displace it, such kind of reaction is known as displacement reaction. Displacement reaction refers to a chemical reaction in which the displacement of less reactive elements takes place by a more reactive element. Both the non-metals and metals undergo displacement reactions.