Match the following. 1. medical procedures or practices that aid in health and are intended to decrease the chance of illness or disease
stethoscope
2. a medical instrument that allows an individual to listen to sounds in the body
trauma
3. an instrument used to measure temperature
preventative medicine
4. an extreme event, serious injury, or shock to the body
thermometer

1.preventative medicine 2.stethoscope 3.thermometer 4.trauma

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