Answer:
the action of purifying a liquid by a process of heating and cooling.
Explanation:
Answer: A it goes hot to cold not cold to hot.
Explanation:
Fossil Fuels will not always be around. They're a nonrenewable resource. At least for the next millennia.
Just think, in about a million years, we'll be fossil fuels.
Answer:
2Mg(s) + O2(g) ----->2MgO(s)
Explanation:
In writing a balanced chemical reaction equation, the rule of thumb is that the number of atoms of each element on the reactant side must be the same as the number of atoms of the same elements on the products side.
Hence for the reaction of magnesium and oxygen shown below;
2Mg(s) + O2(g) ----->2MgO(s)
We notice that there are two atoms each of magnesium and oxygen on both sides of the reaction equation hence the equation is balanced.