How can you distinguish a substance from a mixture

What's the primary difference between a scientific theory and a scientific law, is that a law?

At stp what element is a good conductor of electricity?

How many molecules of hypothetical substance b are produced when 29.9g of hypothetical substance a reacts? the molar mass of substance a is 15.7 g/mol?

People who view society as a set of interrelated parts that work together to produce a stable social system are said to employ the a. manifest function. c. interactionist perspective. b. theoretical perspective. d. functionalist perspective.

What is a career that involves science and a hobby?

Does the amount of heat absorbed as 1 kg of saturated liquid water boils at 100°C have to be equal to the amount of heat released as 1 kg of saturated water vapor condenses at 100°C?

F. Protection of the body from infectious organisms is accomplished by which of these tissues? a) bone; b) muscle; c) nerve; d) blood

A compound that is composed of molybdenum (Mo) and oxygen (O) was produced in a lab by heating molybdenum over a Bunsen burner. The following data was collected: Mass of crucible: 38.26 g Mass of crucible and molybdenum: 39.

Which of the following elements has electrons in the 3d sublevel?

Which procedure can be used to separate the sand salt and water from each other