C2 H4+ 3O2= 2CO2+ 2H2O
How many moles of methane will be burnt to produce 0.1 of water

0.05mole

Explanation:

C2H4+ 3O2 —> 2CO2 + 2H2O

From the equation, 1mole of ethene produced 2 moles of H2O.

Therefore, Xmol of ethene will produce 0.1mol of H2O i.e

Xmol of ethene = 0.1/2 = 0.05mole

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.