Question

plz anwer this.....xo​

Answer 1

Answer:

1. a pure substance is a substance is that contain the Same kind of particle atoms or molecules.
2. an element is a pure substance made up of only one kind of atoms that cannot be split into two or more simpler substance by any physical or chemical method.example gold silver carbon etc
3. a compound is a pure substance made up of two or more elements chemically combined in a fixed proportion by mass example glucose ammonia etc
4. A mixture is two on more pure substance mix together in any proportion that do not undergo any chemical change ine retain their individual properties.example sugar syrup chalk and water etc
5. metals:-

• they are mostly solid at room temperature
• they are hard
• they are lustrous
• they are malleable
• they are good conductors of heat and electricity
• some examples of gold silver aluminium iron and zinc

non metals:-

• they are solid or gas at room temperature
• they are generally soft
• they are non lustrous
• they are non malleable
• they are bad conductors of heat and electricity
• examples are oxygen hydrogen nitrogen carbon and chlorine.

hope you like it and plz mark it as brainliest

Answer 2

Answer:

Pure Substance - A pure substance is a sample of matter with both definite and constant composition and distinct chemical properties.

Mixture - A mixture is the physical combination of two or more different  substances.

Element - An element is a material which cannot be broken down or changed into another substance using chemical means.

Compound - A compound is a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight.