Is melting of candle wax reversible?

Why might you use a plastic replica of a cell in biology class instead of real cells?

What is the molarity of a solution that contains 0.75 moles of solute in a 1.5 L of solution? Show your work.

The range of a singer voice depends on

A 205-ml solution of nacl was electrolyzed for 8.20 min. if the ph of the final solution was 12.28, calculate the average current used.

The planetary model of the solar system has changed over time. Under Aristotle's geocentric model, the sun, stars and planets revolved around the Earth. Later, Copernicus' heliocentric model explained that planets revolved around the sun.

The masses of reactants is always greater than the masses of the products in a chemical reaction, because the products are combined together. TRUE FALSE

How the elements calcium and chlorine would be named if they formed a chimical compound?

A basketball has a volume of 4.5 liters at 136.5 kPa how many liters would it be at 140.1 kPa

How many feet is 5642cm

A (n) bond forms when one atom gives up one or more electrons to another atom.