What is the science or Chemistry behind the changing colors of the beautiful trees (leaves) in NC during the Fall? (Include pictures, formulas , reactants and products in this chemical reactions )
2. Counting atoms : Determine the number of each atom shown below:
a. 5(NH4)2 O

b. 6C6O12O6
3. Coefficients vs Subscripts ;
a. What are the coefficients for hydrogen gas, oxygen gas and Water (g) shown below?
b. What are the subscripts for hydrogen gas, oxygen gas and water (g) shown below?
c. How many atoms make up the water molecule 2H2 O ?

Oxidation-reduction reactions (often called "redox" for short) are reactions that involve the transfer of electrons from one species to another. oxidation states, or oxidation numbers, allow chemists to keep track of these electron transfers. in general, one element will lose electrons (oxidation), with the result that it will increase in oxidation number, and another element will gain electrons (reduction), thereby decreasing in oxidation number. the species that is oxidized is called the reducing agent or reductant. the species that is reduced is called the oxidizing agent or oxidant. to sum up: oxidation = increase in oxidation state = loss of electrons = reducing agent reduction = decrease in oxidation state = gain of electrons = oxidizing agent part a which element is oxidized in this reaction? fe2o3+3co→2fe+3co2 enter the elemental symbol. view available hint(s) is oxidized part b which element is reduced in this reaction? 2hcl+2kmno4+3h2c2o4→6co2+2mno2+2kcl+4h2o enter the elemental symbol. view available hint(s) is reduced

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?