Question

section 6 iron and oxygen experiment by openscied some students conducted an investigation to see how another type of rust forms. they combined iron and water in a sealed jar. they took observations of the irons properties before and after. the data is shown below: 8 what happened to the mass of the system from the image a to image b? (a) stayed the same increased decreased (b) the mass of a closed system staying the same is an example of what scientific idea? law of conservation of mass - atoms are not created nor destroyed they are just rearranged archimedes buoyancy principle, the force acting on, or buoying, a submerged or partially submerged object equals the weight of the liquid that the object displaces newtons third law - for every action there is an opposite equal reaction

Explanation:

(a) In a sealed jar (a closed system), according to the law of conservation of mass, mass is neither created nor destroyed. So the mass of the system from image A to image B stayed the same.
(b) The law of conservation of mass states that atoms are not created nor destroyed; they are just rearranged. A closed - system's mass remaining the same is an example of this law. Archimedes' buoyancy principle is about buoyant force and displaced liquid weight, and Newton's third law is about action - reaction pairs.

Answer:

(a) A. stayed the same
(b) A. Law of conservation of mass - atoms are not created nor destroyed they are just rearranged