What is not a possible source of error? Question 4 options:

people observe things slightly differently and can make mistakes

all answers are sources of error

measuring devices have limits, might be broken, or might be calibrated incorrectly

Lap equipment is not always identical (they can vary)

outside factors can affect te experiment (temperature, humidity, light, wind, etc.)

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Many free radicals combine to form molecules that do not contain any unpaired electrons. the driving force for the radical–radical combination reaction is the formation of a new electron‑pair bond. consider the chemical equation. n(g)+no(g)⟶nno(g) n(g)+no(g)⟶nno(g) write lewis formulas for the reactant and product species in the chemical equation. include nonbonding electrons. n(g)n(g) select draw rings more erase select draw rings more erase select draw rings more erase n no(g)

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.