Answer:
Matter is a physical substance that contains mass. A substance is a particular kind of matter with uniform chracteristics.
Explanation:
Remeber that matter is anything that has mass and takes up space :)
Answer:
B) Stainless steel
Explanation:
Homogeneous mixture -
It refers to the composition of various substance , which leads to a mixture of complete uniform composition , i.e. , the ratio of each and every component of the mixture is constant all over the mixture , is referred to as a homogeneous mixture.
For example ,
In the solution of sugar and water , where 1 tablespoon of sugar is dissolved in 100 mL of water ,
The ratio of sugar and water remains constant all over the mixture.
Hence, from the given options the homogeneous mixture is B) Stainless steel .
Potassium is more reactive because it is in group one