The name dinitrogen tetroxide tells you that this compound contains
a.
two nitrogen atoms and two oxygen atoms.
b.
four nitrogen atoms and two oxygen atoms.
c.
two nitrogen atoms and four oxygen atoms.
d.
four nitrogen atoms and four oxygen atoms.

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2