Advantages of Hiring UIUX Design Service Providers for Your Business
Natasha Stokes
1. B y: N a t a s h a S t o k e s 9 / 18 / 09 3 r d P e r i o d
2. Chemical and Physical Change A physical change in a substance doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed.