Butter melt when you heat it in a pan on the stove. Is this a chemical change or physical change? How can you tell?

You inoculate bacteria in a broth culture and bacteria only grew at the very bottom of the tube. How would you best describe the oxygen utilization of this bacterium?

Which of the following statements correctly describe (s) the driving forces for diffusion of Na + and K + ions through their respective channels?

Suggest me an experiment to compare the conductivity between iron, zinc and copper

If 75.0 g of a liquid has a volume of 62.4 mL, calculate the liquid's density

Is a solution a homogeneous or a heterogeneous mixture? Give an example of an aqueous solution.

Which is the molar mass of Calcium?

Which statement best describes the nature of science? Science discoveries using the latest technology are the most valuable. Scientific theories and laws are based on beliefs and popular opinion.

vanadium has an atomic mass of 50.9415 amu. it has two common isotopes. one isotopes has a mass of 50.9440 amu and a relative abundance of 99.75%.

Which of the following could a magnet float over? A. A network solid B. A molecular solid C. A semiconductor D. A superconductor

What are genes a part of?