3.Write the chemical equation for the reaction when methane burns in (2) (a) Sufficient supply of oxygen
(b) Insufficient supply of oxygen

a)CH4 + O2 = CO2 + H2O

b)4CH4+5O=2CO+8H2O+2C

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.