Which procedure could a student use to examine an intensive property of a rectangular block of wood

The correct answer is density, because intensive properties can be measured.

Explanation:

Intensive properties can be measured. Their values depend on the type of material and not the amount of matter we have. To measure density, we must first measure the volume of the block of wood with a measuring tape, then we can weigh the block of wood on a calibrated scale, and finally, calculate density as the ratio of mass to volume ( m/V).

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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