Yes... And they had a child named magnesium oxide.
Answer:
strong acid because it dissociates almost completely.
Answer:
121 million joules energy is released
Explain :
As there are 500 moles of hydrogen gas in a kilogram, this means that burning a kilogram of hydrogen gas releases 500 times as much energy or 121 million joules .
Answer: (3) silicon
Explanation:
Element is a pure substance which is composed of atoms of similar elements.It can not be decomposed into simpler constituents using chemical reactions.Example: Silicon (Si)
Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.It can be decomposed into simpler constituents using chemical reactions. Example: ethane
, propanone
and water 
Answer:
<h3>homeostasis</h3>
•the maintenance of a stable internal environment
<u><em>Hope </em><em>this</em><em> helps</em><em> </em><em>:</em><em>)</em></u>