A) how many moles of O2 are needs to burn 2.95 mol of C8H18?

b) how many grams of O2 are needed to burn 1.75 g of C8H18?

c) Octane has a destiny of 0.692 g/mL at 20 degrees Celsius. How many grams of O2 are required to but. 5.65 gal. of C8H18? 1 gal= 3.79 L

Y=‐1x + 7 if y has a value of ‐24 what is the value of x?

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.