a scientist makes several observations about a chemical reaction and records them in the table shown. which observation contains an error based on the law of conservation of mass?

Ethene molecular fórmula= c2h4molecular weight = 29.046g/molhope it : )

4- c, because all matter stays the same no matter what. it is still there. 5- b, because matter is known as mass. 6-c because, flammability is a chemical property. malleability is changing the shape of an object.