The molar mass of N2O5 (Dinitrogen pentoxide) is 108.01 g/mol.
Answer:
140 degrees
Step-by-step explanation:
The center angle of a semi circumference is 180 degrees
BC 180 - 20 - 20 = 180 - 40 = 140 degrees
Answer:
$3000 is his original salary.
Step-by-step explanation:
3450 / 1.15 = 3000
Answer:
1
Step-by-step explanation:

Well, the last digit in the product will only come from the last digits of the numbers that you're multiplying together. So for 0.303 & 4.48, that last digits are 3 & 8 so that last digit in the product would come from

So 4. There are only two options that end in 4, 1.35744 & 0.13574. You can by the magnitude of the numbers that it isn't as small as 0.13574 so the answer must be 1.35744.