I would say it is answer choice C, Laws are based on proven hypothesis by many different scientists.
Answer:
cm3 = 2500.0 g / 10.5 g/cm3 = 238 cm3
In oil and gas industry:
When crude oil get extracted from well, salt water and some other stuff needs to be removed before oil can be sued in the car
Answer:
the gravitational force is proportional to the mass of both interacting objects, bigger objects will attract each other with a greater gravitational force. So the mass of either object increases, the force of gravitational attraction between them also increases.
I believe the answer is 50.5 molecules