Answer:
Energy transferred during a chemical reaction. ... In an exothermic reaction, the potential energy of the system goes down, and heat is given out. In an endothermic reaction, the potential energy of the system goes up, and heat is taken in.
Explanation:
 
        
             
        
        
        
There are many reactions, like Oxidation and Reduction
        
             
        
        
        
Red blood cells plus 10% salt solution is a suspension when viewed under the microscope <span>contain red blood cells that would appear wrinkled and reduced in volume.
Red blood cells are abbreviated as RBCs, the other name which is also used for these is </span>erythrocytes.Red blood cells are considered as the most common type of blood cell and they also remove carbon dioxide from the body and transport it to the lungs so that we can exhale.
        
             
        
        
        
Answer:
rarefaction
Explanation:
along the same direction the wave travels
 
        
             
        
        
        
Explanation:
1)= always starts with the letter C02= carbondioxide....