Mathcat444
29.09.2019 •
Chemistry
Inside the combustion chamber of a coal-fired power plant
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Ответ:
Burning fossil fuels release energy in the form of heat.
Ответ:
Alkali earth metal is the second column group of the periodic table. In this group, the element has 2 extra electrons in their outer cells. That is why most of this metal has 2+ charge.
Their neighbor is the alkali metal which was the first column of the periodic table. The name is similar so don't confused and mix them each other.