How many liters of O, are used to produce 4 moles of CO2? ​

At STP defined as 0° C (273.15 K, 32° F) and 1 atm, the molar volume of a gas is 22.414 L/mol.

Use dimensional analysis to calculate the volume of 4 moles of CO₂.

4 mol CO₂ × 22.414 L/mol = 89.656 L = 90 L (rounded to one significant figure)

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.