Answer:
2S +3O2 =2SO3
Explanation:
2 at the front of sulphur is to equalize the 2 put in SO3.
Answer:
A. 0.31 mol NaNO2
Explanation:
Buffer solutions are the solutions that resist changes in pH on addition of small amount of acid or base.
Buffer solutions usually contain the mixture of a weak acid and its salt, or a weak base and its salt.
Among the options listed in the question, only NaNO2 is the salt formed from the nitrous acid.
You were supposed to attach a picture so I know what the question id
The glue molecules stick to the surface molecules like millions of microscopic magnets.
Hope it helps
Seawater is made up of water and salt; they are together physically but not chemically (you can prove that because they can be separated as water and salt by physical methods, e.g. distillation, filtration). A physical combination is called a mixture, a chemical combination is called a compound.