Which of the following postulates of Dalton's atomic theory explains the Law of Conservation of Mass?

Which law explains why 18g of water always decomposes into 2g of hydrogen and 16g of oxygen?

Which of the following reactions is not correct according to law of conservation of mass

A mixture of $CO$ and $CO_2$ weighing 1.12 g is treated with an excess of red hot $CuO$. The $CO$ is converted to $CO_2$. The total weight of $CO_2$ produced is 1.6 g. What was the weight percentage of $CO$ in the original mixture?

Which law implies that the mass ratio of elements in a compound is always a whole number ratio?

Which metal, among Mg, Cu, Ag, and Au, would effectively displace copper from a copper sulfate solution?

Which of the following postulates of Dalton's atomic theory explains the Law of Conservation of Mass?

Which of the following experiments definitively proved the Law of Conservation of Mass?

Hydrogen and oxygen combine to form water (H2O). If 4g of hydrogen reacts completely with oxygen to form water, what mass of oxygen is required?

Which of the following reactions is the metal displacement reaction? Choose the right option.

A student places a piece of metal X into a solution of $ZnSO_4$. No reaction is observed. The student then places a piece of metal X into a solution of $CuSO_4$. A reaction occurs, and a reddish-brown solid forms. Where would metal X most likely be placed in the reactivity series?