Afluorescent light tube usually contains
a. a vacuum.
b. oxygen.
c. mercury vapor.
d. light-emitting diodes.

Main expenses you plan on making payments on a new car too. you want to spend 15% of your monthly net pay on the car payment, insurance, registration, and taxes combined. what is your monthly car allowance? $149.46 $298.91 $448.37 $597.83

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand

Balance the following reaction. as2s3 + 9o2 → 2as2o3 + so2