Answer:
Pamprosesong tanong:
1. Ano ano ang mga naging suliranin ng sektor ng agrikultura?
2. Ano ang mga naging dahilan nito at ano ang epekto nito sa sekta
3. Paano makatutulong ang mamamayan para maiwasan ang pag
farikinarglihan (Mungkahing Oras: 10 minuto)
The answer will be A. Hoped it help!
Answer:
82.9% Is the percent yield
Explanation:
First, we need to balance the equation.
Ca(CO3) + 2HCl → H2O + CO2 + CaCl2
Since the problem tells you that the excess reactant is Ca(CO3), we just need to Stoichiometry to solve for the theoretical yield.
x
x
x
=120.707 g (theoretical yield)
Take your actual yield of 100g, divide that by 120.707, then multiply that decimical by 100.
Answer:
85.6
Explanation:
(72 x 85) + (28 x 87)
-----------------------------
100
= 85.56
= 85.6 (3 s.f.)
Answer: 52.17%
Explanation:
Number of matches in the box = 46
Number of matches that lit on the first strike = 22
Number of matches that did not light on the first strike = 46 - 22 = 24
Therefore, the percentage of the matches in the box did not light on the first strike will be:
= (Number of matches that did not light on the first strike / Number of matches in the box) × 100
= 24/46 × 100
= 52.17%
Therefore, the percentage of the matches in the box that did not light on the first strike is 52.17%.