Question

1. what is meant by a substance?
2. list the point of differences between homogenous and heterogeneous mixture?​

Answer 1

Answer:

1)  A substance is a matter that has definite properties and composition. Every pure compound and element is a substance. Pure substances can be divided into two categories – elements and compounds.

2) Homogenous: They have no visible boundaries of separation between the constituents. (remember the prefix homo means same or similar)

   

Heterogeneous: They have visible boundaries of separation between the constituents. (remember the prefix hetero means different)

I hope this helps.

Answer 2

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1) A substance is a pure single form of matter. It cannot be separated into other kinds of matter by any physical process. The substance must be composed of atoms and molecules. The substance must have a particular amount of weight, mass and volume.

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2) Homogeneous mixture ➡️A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture. Often it is easy to confuse a homogeneous mixture with a pure substance because they are both uniform. The difference is that the composition of the substance is always the same.

Heterogeneous mixture➡️A heterogeneous mixture is a mixture in which the composition is not uniform throughout the mixture. Vegetable soup is a heterogeneous mixture. Any given spoonful of soup will contain varying amounts of the different vegetables and other components of the soup.

Hope this helps you❤️

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