Answer:
24.32 amu
Explanation:
From the question given above, the following data were obtained:
Isotope A (Mg–24):
Mass of A = 24 amu
Abundance (A%) = 79%
Isotope B (Mg–25):
Mass of B = 25 amu
Abundance (B%) = 10%
Isotope C (Mg–26):
Mass of C = 26 amu
Abundance (C%) = 11%
Average atomic mass of Mg =?
Average atomic mass = [(Mass of A × A%)/100] + [(Mass of B × B%)/100] + [(Mass of C × C%)/100]
= [(24 × 79)/100] + [(25 × 10)/100] + [(26 × 11)/100]
= 18.96 + 2.5 + 2.86
= 24.32 amu
Thus, the average atomic mass of Mg is 24.32 amu
Answer:
The correct answer is the a=heat
Explanation:
Hello! Let's solve this!
Heat is responsible for regulating the temperature on Earth. When the temperature rises, the evaporation of water occurs, so it influences the water cycle. It also influences the climatic phenomena by increasing and lowering the temperature.
The correct answer is the a=heat
Because Na has one too many electron to be stable, while Mg has 2. once they loose those electrons, they will be come ion. loosing one electron will give the ion a 1+ charge, and loosing 2 will create a 2+ charge
The arrangement of valence electrons in metals can be best described by the
A sea of electrons.
In balancing reactions, it is important to remember that each of the side in the reaction should have the same number of elements. We do as follows:
<span>2SO2(g) + O2(g) -> 2SO3(g)
H2S(g) + 3/2O2(g) -> SO2(g) + H2O(g)
Hope this answers the question. Have a nice day.</span>
