When 0.750 moles of oxygen are reacted, how many moles of carbon dioxide are produced?

Can someone me with this and tell me what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

Apair of fruit flies reproduces and has 1,000 offspring. all 1,000 of the offspring have the alleles gg. what is the most likely combination of alleles for each parent

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone