Are the following data sets on chemical changes consistent with the law of conservation of mass?
(a) A 15.0 g sample of sodium completely reacts with 19.6 g of chlorine to form 34.6 g of sodium chloride.
the answer is yes, because 15 and 19.6 add up to 34.6 right?
ok.. sorry to post anyother question on here but i got the answer to my previous question but im having trouble with this one..
In the explosion of a hydrogen-filled balloon, 0.43 g of hydrogen reacted with 7.2 g of oxygen to form how many grams of water vapor? (Water vapor is the only product.)
ive tried dividing them both ways and adding and multiplying but i can't get the right answer.
I have no idea how to do it. can anyone help me?
Yes, the data set provided is consistent with the law of conservation of mass. The law of conservation of mass states that in a chemical reaction, matter is neither created nor destroyed. This means that the total mass of the reactants should be equal to the total mass of the products.
To confirm this, you need to calculate the total mass of the reactants and compare it to the total mass of the products.
To find the total mass of the reactants, you add the masses of sodium (15.0 g) and chlorine (19.6 g):
15.0 g + 19.6 g = 34.6 g
The total mass of the reactants is 34.6 g, which matches the total mass of the product, sodium chloride (34.6 g). Therefore, the data set is consistent with the law of conservation of mass.