Mole - one of the most important concepts in chemistry - is a kind of link to go from the microworld of atoms and molecules in a normal macrocosm grams and kilograms.
In chemistry often have to consider large numbers of atoms and molecules. For fast and efficient calculation made using the weighing method. But it is necessary to know the weight of individual atoms and molecules. In order to identify the molecular weight must be added the weight of all atoms in the compound.
Answer:
The question is incomplete.(not enough data provided).
Explanation:
A.) The reaction is Exothermic
Mg
......
Electron configuration:
²⁴₁₂Mg: 1s² 2s² 2p⁶ 3s²
>>> 3s² - valence shell with 2 valence electrons
Answer:
Carson models how the continental crust varies in thickness. Marisol records atmospheric and oceanic temperatures at several beaches. Eliza analyzes seismic wave activity from an earthquake using a computer model.
