How many elements are man made

Which is a property that most metals have in common? A.) Shiny B.) Brittle C.) Poor conductor of electrons of electricity D.) Tend to gain 1 or more electrons in a chemical reaction

What is the standard equation for calculating molar mass?

What is the three main alternative sources of energy

What happens to large molecules such as carbohydrates during digestion? Why does this happen?

Which organelle of a prokaryotic cell contains genetic information? cell membrane nucleoid nucleus ribosomes

Which statements indicate what the fossil record suggests about evolution on Earth? Check all that apply. Humans have only recently existed on Earth. Organisms originally lived only in Earth's water. Life on Earth started when water formed on Earth.

What does homogeneous mixture of elements mean

As an acid is added to neutral water the [OH-] will

What is the mass in grams of 5.00moles of CH4? How many moles of oxygen gas O2, are present in a 38g sample of O2

25 In general, for a gas at a constant pressure, A the temperature of the gas is inversely proportional to its volume B. the temperature of the gas is inversely proportional to its pressure C.