24 g of magnesium is burned in oxygen. the compound formed has a mass of 40g. explain why the mass has gone up

Apush or pull that moves or changes and object when to objects touch

Ablock of aluminum is dropped into a graduated cylinder with an initial volume of water at 75ml and the volumes rises to 90ml. if the block has a mass of 40.5 g what is its density ?

What makes up a film badge? layers of photographic film covered in black paper. an electrolyte paste spread across a plastic sheet. a thin film of salts and other chemicals on clear acetate. a panel of photographic film exposed to the air. ✓