Plsss answer this?? i need help

85.34 g of oxygen

Explanation:

Carbon and Oxygen combine in ratio 3:8 to form CO2

Weight of C = 32g

3g of carbon reacts with 8g of oxygen

1g of carbon reacts with 8/3 g of oxygen

32 g of carbon reacts with 8/3 (32)

= 256/3

= 85.34 g of Oxygen

Hope it helps

i just learnt this recently but i need to look through my notes again

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.

question answered by

(jacemorris04)