metal oxide
It becomes rusty
Because when something is burned, new products are formed.
The substance formed in a chemical change is called Product.
False because the wax would have gone through a physical change since it has only melted and turned into liquid but you can reverse the effect by cooling it so it becomes a solid again. (No new substance formed) When the string is burned by the fire, the change is irreversible. Also, when the string is burned, new substances are created like gases and ash making it a chemical change. Since no new substance forms when the candle wax melts, that's why it is a physical change, not a chemical change.
Yes, putting metal in acid is a chemical change because a new substance is formed as a result of the reaction between the metal and the acid. This reaction typically involves the metal losing electrons to the acid, resulting in the formation of new chemical compounds.
It becomes rusty
The change were new material is produce is called chemical change.
Chemical.
Chemical duhhh
Tarnishing of metal is a chemical change because it involves a reaction between the metal and substances in the environment (such as oxygen or sulfur compounds) that forms a new compound on the surface of the metal, altering its properties.
Burning Mg in air is a chemical change. When magnesium reacts with oxygen in the air, it forms magnesium oxide. This is a chemical reaction that results in the formation of a new substance with different properties than the original magnesium.
When a metal oxide reacts with water, it forms a metal hydroxide. This is a chemical reaction where the metal oxide molecule combines with water molecules to produce a new compound. The reaction typically generates heat and produces hydroxide ions in the solution.
The formation of an oxide when sodium metal is heated with oxygen is a chemical change. This is because a new substance (sodium oxide) with different chemical properties is formed due to a chemical reaction between sodium and oxygen. It involves the rearrangement of atoms at a molecular level.
compound
Because when something is burned, new products are formed.
Chemical. It produces new forms of matter that were not there before.
Products are the new substances that form as a result of a chemical reaction.