imagine you have four food dyes to test A, B, C and D imagine that you are going to investigate which food dye diffuses more quickly a- which variable will you change? b- which variable will you measure? how will you do this?c- which variable will you keep the same?d- how many times will you carry out each test? Explain will you need to repeat the test and last how will you know which dye diffuses fast

Light waves can move through , but they travel fastest when they move through a(n) .

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation:

At element makes up all organic compounds?