11.)
NaHCO₃ +
(CH3COOH
CO₂ +
H₂O +
NaCCH Scoo
balance?

NaHCO3 + CH3COOH = Na(CH3COO) +H2O +CO2.

Explanation:

Balancing a chemical equation is very important in case of both laboratory and industrial purpose. It gives us the stoichiometric ratio of the reactants which reacts together and how much product we can expect from the reaction.

Here, sodium bicarbonate reacts with acetic acid or vinegar to produce sodium acetate, carbon dioxide and water. Actually carbonic acid is produced which is decomposed to carbon dioxide and water.

Now balancing the equation, we get,

NaHCO3 + CH3COOH = Na(CH3COO) +H2O +CO2.

So this reaction is already balanced. It means 1 mole of each reactant reacts to produce 1 mole of each product.

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant.