A chemistry student combines lithium and bromine in a lab experiment. Which of the following statements is true for the mass of lithium and bromine before and after the reaction?
A. The mass after the reaction was greater than the mass before the reaction because the two substances combined
B. The mass after the reaction was smaller because one of the products is a gas and it escaped
C. The mass after the reaction was equal to the mass before the reaction due to the law of conservation of mass
D. None of the above are true because lithium and bromine would not react with each other

Question

A chemistry student combines lithium and bromine in a lab experiment. Which of the following statements is true for the mass of lithium and bromine before and after the reaction?
	A.	The mass after the reaction was greater than the mass before the reaction because the two substances combined
	B.	The mass after the reaction was smaller because one of the products is a gas and it escaped
	C.	The mass after the reaction was equal to the mass before the reaction due to the law of conservation of mass
	D.	None of the above are true because lithium and bromine would not react with each other

anonymous · Answer

@Jigglypuff123  B?

anonymous · Answer

B.	The mass after the reaction was smaller because one of the products is a gas and it escaped