Respuesta :
1. Water is an example of a mixture because it is made up of hydrogen oxygen Adams bonded together ?
Answer:
- False
Explanation
- Water is a Compound.
- Mixture refers to the physical combination of two or more substances in any proportion on which the identities are retained and are mixed in the form of solutions, suspensions, and colloids.
- A Compound is a chemical combination of two or more substances in fixed ratio. If we combine 3 parts of Hydrogen and 1 part of oxygen, we will never get water.
2. Which of these methods could be used to separate an insoluble solid from a soluble solid?
Answer:
D. Mixing the mixer with water filtering out the insoluble solid and then evaporating the water to isolate the soluble water.
3. Which of the following correctly describes a mixture?
D. The particles have no set ratio for how to combine, and they can be separated by physical means.
Explanation:
- In mixture , there is no specific ratio, in mixture, you have to mixed the two or more substances in any proportion.
- They have no chemical formula.
- They retain original properties.
- Can be recovered by physical means
Answer:
1. False
2. D
3. D
Explanation:
1. Water is not a mixture because a mixture is a substance that is made up of two or more different substance each with their unique characteristics.
2. In order to separate an insoluble solid from a soluble solid, just add water to the mixture and the soluble solid will dissolve. Filter off the insoluble solid and dry the residue. To recover the soluble solid, evaporate off the water using a suitable method.
3. A mixture is a combination of two or more substances that are not chemically combined with each other and can be separated by physical means.