Co + h2
Yes, a pure substance is a substance that is made up of only one type of particle. This means that all particles in a pure substance are identical in terms of their chemical composition.
Crushing an aluminum can is a physical change because you have only changed its shape, but not its chemical composition.
Definite chemical composition is when a mineral is made of the same material throughout. Basically when a mineral is only made of one material all the way through, not part iron in one part and then gold in the rest.
Mixing salt and water is a physical change, not a chemical change. The salt does not change its chemical composition when it dissolves in water, only its physical state.
No, that statement is incorrect. A physical change does not involve changing the composition of a substance or forming new substances. It only alters the physical state or appearance of a substance without changing its chemical composition. When a substance changes composition and forms new substances, it is considered a chemical change.
Physical properties can be observed without changing the chemical composition of a substance. Chemical properties can only be observed by changing the chemical composition of the substance. In a physical change, the chemical composition of the substance does not change. In a chemical change, the chemical composition of the substance changes.
Slicing turkey represents a physical change, not a chemical change. The chemical composition of the sliced turkey is identical to the chemical composition of the intact turkey. Only a physical change has taken place.
Yes, a pure substance is a substance that is made up of only one type of particle. This means that all particles in a pure substance are identical in terms of their chemical composition.
Sodium is an element. It is made only of sodium atoms.
Crushing an aluminum can is a physical change because you have only changed its shape, but not its chemical composition.
Only physical means; chemical means alters the chemical composition.
Pungent odor is a physical change because it only affects the sense of smell without altering the chemical composition of the substance emitting the odor.
Mechanical weathering does not change a rock's chemical composition; it only breaks the rock into smaller pieces. Chemical weathering, on the other hand, alters a rock's chemical composition through processes like oxidation, hydrolysis, and dissolution.
It doesn't have one. Shale is a mixture and doesn't always have the same composition. Only elements have chemical symbols
If I understand your question correctly, it would be a change in composition that signifies a chemical change. Physical changes are only appearance, while a chemical change alters the substances' entire composition.
physical only, you are only changing its state, not its composition.
no. it is physical because the composition of the mixing are not chemically altered but only physically mixed. That means that they could be separated without chemically altering the composition again.