During a physical science lab investigating chemical reactions, several students placed a 30g antacid tablet in a 30g zip-lock bag. They recorded the masses of the tablet, and the bag. Then they added 50 grams of water and quickly sealed the bag. The tablet began to fizz and soon disappeared. The bag was filled with gas. What can you conclude about the amount of gas produced if the mass of the liquid after the reaction is completed is still 50 grams?
A) 30 grams
B) 50 grams
C) 80 grams
D) 90 grams
Answers
Answer:
B) 50 gram I think is the write answer
mistake ho jaye to sorry
It is given that during a physical science lab investigating chemical reactions, several students placed a 30g antacid tablet in a 30g zip-lock bag. They recorded the masses of the tablet, and the bag. Then they added 50 grams of water and quickly sealed the bag. The tablet began to fizz and soon disappeared. The bag was filled with gas. What we can conclude about the amount of gas produced if the mass of the liquid after the reaction is completed is still 50 grams is
A) 30 grams
▪Mass can neither be created nor destroyed.
▪From the law of conservation of mass, mass of reactants is equal to mass of products.
▪This implies that the mass of antacid and water is equal to mass of liquid and gas.
▪Therefore mass of gas, m= 50+30-50 =30 grams.