The name of two or more characteristics of electromagnetic ronnique that are best explained by a wave model

Electro magnetic waves are transverse like the waves of the water in the ocean, have frequency, amplitude.

Explanation:

Electro magnetic waves are the waves which are just like the waves in the water in the ocean or the waves that occur or are seen on a string of a guitar. These waves are a type of transverse waves.

Electro magnetic waves because of their properties are opposed to the compression waves of the sound. But just like the other normal waves, these electro magnetic waves also have the normal features like amplitude, frequency.

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