Answer:
Lead
Explanation:
Lead (Pb) is the end product of every natural radioactive series.
Answer:
to hard im only in year 8
Explanation:
Answer:The molecules in a raw egg absorb the heat energy, they use this energy to change shape
Such a chemical reaction is said to be endergonic, which means 'energy in'.
Egg molecules will never undergo these reactions without the input of energy (usually in the form of heat)
I hope this helps, if not, let me know :)
Answer:
Explanation:
As given in the question that methane(
) is taken excess amount
mass of 
depend only on mass of fluorine
mass of 
=180 g
mole of =
=9.47
3 mole of gives 1 mole of
so 1 mole will give 
mole of
therefore,
9.47 mole of will give 
mole of
Answer is B the number of reactants is the same as the number of products
