How many moles of oxygen (O2) are present in 33.6 L of the gas at 1 atm and 0°C? 1.5
2
22.4
32

Abullet found at a crime scene may be used as evidence in a trial if the percentage of metals match to the composition of metals in a bullet from the suspect's ammunition. a forensic scientist's analysis of the bullet shows that it contains 11.9 g of lead, 0.5 g of tin, and 0.8 b of antimony. what is the percentage of lead metal in the bullet? express your answers to the one's place.

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

What is an example of a physical property?