Read the given equation. na2o2 + co2 → na2co3 + o2 what volume of o2 gas is produced from 2.80 liters of co2 at stp?

At STP same number of moles of gases occupy the same number of moles of gases occupy the same volume. Therefore for the since the ratio of CO2 used to the O2 produced is 1:1 hence the volume of O2 will be 2.80 liters.

what's the question?

explanation:

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

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(jacemorris04)