Mass is an intensive physical property because it is dependent on the size of the sample. true or false

False

Explanation:

Physical properties of matter can be broadly classified into two categories:

-Intensive property

-Extensive property

Intensive properties are independent of the size or mass of matter i.e. they do not change as 'quantity' of matter changes. This includes: density, temperature, pressure etc

Extensive properties, in contrast are mass dependent and change as the amount of matter changes. Some examples include: mass, volume etc

The statement that mass is an intensive physical property because it is dependent on the size of the sample is False, instead mass is an extensive property.

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o