Answer:
The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.
Answer:
Generally fertilizers increase earth worm numbers if the PH of the soil is kept near neutral.
Answer:
newtons 2nd law is the answer
The given question is incomplete. The complete question is ;
Ammonia gas can be prepared by the following reaction:

In an experiment, 27.6 g of ammonia gas,
, is produced when it was predicted that 50.2 g of
would form.
What is the theoretical yield of
? What is the actual yeild of
? What is the percent yeild of
?
Answer: a) 50.2 g
b) 27.6 g
c) 5.0 %
Explanation:
a) Theoretical yield is defined as the amount of the product that is possible in the reaction.
Theoretical yield of
= 50.2 g
b) Experimental or actual yield is defined as the amount of the product that is actually formed in the reaction.
Experimental yield of
= 27.6 g
c) Percentage yield is defined as the ratio of experimental yileld to the theoretical yield in terms of percentage.


Hence percentage yield for the reaction is 55.0 %.