Which explains why it is important to eat a full healthy meal before an afternoon of playing sports?
a) food provides the carbon dioxide that is a product of cellular respiration
b) food provides the oxygen that is a product of cellular respiration
c) food provides the glucose that is a reactant in cellular respiration
d) food provides the energy that is a reactant in cellular respiration

Answer is: C) Food provides the glucose that is a reactant in cellular respiration.

Balanced chemical reaction of cellular respiration:  

C₆H₁₂O₆(glucose) + 6O₂ → 6CO₂ + 6H₂O + energy.

This reaction represent cellular respiration where organic matter is transformed into carbon dioxide and energy is released.

Glucose and oxygen are reactants and carbon dioxide, water and energy are products of this chemical reaction; cellular respiration creates an energy molecule when glucose is broken down.

c

Explanation:

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.