A colloid is a mixture in which one substance of microscopically dispersed insoluble particles are suspended throughout another substance. However, some definitions specify that the particles must be dispersed in a liquid, and others extend the definition to include substances like aerosols and gels.
The types of colloids includes sol, emulsion, foam, and aerosol.
- Sol is a colloidal suspension with solid particles in a liquid.
- Emulsion is between two liquids.
- Foam is formed when many gas particles are trapped in a liquid or solid.
- Aerosol contains small particles of liquid or solid dispersed in a gas.
That's correct, it has 9 significant figures
Answer:
A1 - non hazardous
A2 - irritation
B. Washed off with soap and water
Explanation:
- all materials or chemicals that are not specifically deemed hazardous that is does not cause any harm to the organism in the presence of the material or chemical.
- irritation is a discomfort to an organism which can be caused by an external substance like chemicals.
B. This is the action carried out in order to clean a substance off a surface of a body.
The answer to your question is D