Some things that can indicate a chemical change are change of odor, change of color, change in temperature or energy, such as the production or loss of heat. An example could be the rusting of metal, there would be a color change of going from a shiny silver to a dirty, splotchy red color. Some things that indicate a physical change are change of appearance like change of shape, etc. It can also be like a change between a solid to liquid to gas. For example, the cutting of a piece of paper.
Answer:
true
Explanation:
the more energy a wave has the greater the amplitude is
To separate off different products in order of their boiling points. You do it by a process of heating and cooling in a horizontal condenser usually.
The answer is protons. Neutrons have no charge and electrons have a negative charge so the positive charge must be protons.
Answer:
The force exerted on it.
Explanation:
As the law of motion states, an object at rest will remain at rest an object in motion will remain in motion unless acted upon by another force.
