<em>V= 110mL = 110cm³ = 0,11dm³</em>
<em>C = 1,244 mol/L = 1,244 mol/dm³</em>
C = n/V
n = 1,244×0,11
<u>n = 0,13684 moles</u>
<em>mCa(OH)₂ = 74 g/mol</em>
1 mole Ca(OH)₂ ------------ 74g
0,13684 ---------------------- X
X = 74×0,13684
<u>X = 10,12616g</u>
:)
Answer:
B, A, C
Explanation:
the awnsers that are displayed are the only options that are new, and clean resorsces, we have always used oil in cars but hybrids are a new consept, same as wind power
Good LUCK!!
A picture. hope this helps at least a little.
Answer:
Na2SO4
Explanation:
In the crisscross method, we can write the correct formula for an ionic compound by crossing over the numerical value of each of the ion charges to now serve as the subscript of the oppositely charged ion. Subsequently, the signs of the charges are dropped and the correct formula of the ionic substance is obtained.
For sodium sulphate;
Na ^+ SO4^2-
By crisscrossing and dropping the signs to obtain the subscripts we now have;
Na2SO4
Answer:
Decomposition reaction.
Explanation:
Decomposition reaction -
It is the type of reaction, where a single entity breaks down into various products under the influence of some external factors , like heat and sunlight , is referred to as a decomposition reaction.
From the question,
The reaction is -
2 HgO → 2 Hg + O₂
Hence ,
A single compound HgO breaks down to two entities , i.e. , Hg and O₂.
