Is glass melting a physical or chemical change

An element's atomic number is equal to its number of

If more solute can be dissolved in a solvent, the solution is: 1) unsaturated 2) saturated 3) supersaturated

What do scientists do when they discover that they did something wrong in there experiment

An element has an atomic number of 92 and a mass number of 234. how many neutrons does the element have? 192 142 92

The average speed of gas molecules in cylinders A, B, C, and D are 0.001 m/s, 0.05 m/s, 0.1 m/s, and 0.0005 m/s, respectively. Which cylinder contains gas that is closest to absolute zero

How do you balance phosphorus, potassium and nitrogen in water?

Which of these crystals is softest: P4, ZnS, CuCl, SiO2

Which function allows animals to find mates? movement homeostasis reproduction feeding

Since the action and reaction are exactly equal and oppositely directed, how can there be a net force on an object?

When you strike a match you produce frictional heat energy what does this input of energy present in a chemical reaction