Tiny crystals of all three of these compounds are use and making photographic from an explicitly a chemical reaction darkens of them to produce an image on some containing a G plus and CL minus expose light energy the chlorine Zions extra elect electron is a jack better than captured by silver ion
Brass is an example of homogeneous mixture.
Answer:
2Al+Fe2O3-->2Fe+Al2O3
Explanation:
make sure there are the same no. of atoms on each side
Answer:
A. When a piece of copper is heated, it combines with oxygen to form copper oxide. The chemical reaction for the same is as follows:
2 Cu (s) + O2(g) => 2CuO
B. The mass of the piece of copper will remain same and there will be no change in its mass. However, its volume will increase, so its density will decrease.
C. This is so because heating copper in its elemental form is a physical change and there is no change in mass during a physical change. Hence, the mass of copper remain same.