Burning a log is an example of a. an endothermic reaction b. a solution. c. a catalyst. d. an exothermic reaction

A burning log is an example of D. An Exothermic Reaction

An exothermic reaction is defined as a reaction that release energy into the surrounding air, also causing the mixture that's reacting and its surroundings to become warmer.

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each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i  

there are two significant figures.