2. Consider the following balanced chemical reaction: (100.00 g C2H4O2) + (x g 02) > (146.55 g CO2) + (60.01 g H20)
Calculate the numerical value of x. Place your answer in the box. Express your answer using

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options: