The answer is 3.03 g
Ar(H) = 1.01 g/mol
Since there are three atoms in Al(OH)3, the total atomic mass of hydrogen in Al(OH)3 is:
3 * Ar(H) = 3 * 1.01 g/mol = 3.03 g/mol
The mass (m) is atomic mass (Ar) divided by the number of moles n):
m = Ar/n
Ar = 3.03 g/mol
n = 1 mol
m = 3.03 g/mol / 1 mol = 3.03 g
Option c
water is non polar and can dissolve non polar compounds such as oil
water is unable to dissolve or mix with substances like oil therefore making the statement false
The process which has taken place is called CRYSTALLIZATION.
Generally, crystallization is the process by which solid crystals are precipitated from solution. Crystallization can also occur when a crystal melt or when a crystal get deposited directly from a gas, although these cases are rarer compare to crystals forming from solutions.
Answer:
Gas Evolving Reactions
Explanation:
In this reaction setup, lime water is poured into one of the test tubes and sealed with a stopper. A small amount of hydrochloric acid is carefully poured into the remaining test tube. ... As a result of the acid-carbonate reaction, carbon dioxide is produced and the lime water turns milky.
CaCO
3(s)
+2HCl
(aq)
→2NaCl
(aq)
+H
2
O
(l)
+CO
2(g)
A solid that has a high to very high melting point, great hardness, and poor electrical conduction is an : E. Ionic solid
Ionic solid consist of oppositely charge ions. One of the example of Ionic solid is salt (NaCl)
hope this helps