When the following equation br₂ + so₂ + h₂o → h₂so₄ + hbr is balanced, the coefficient, in the lowest whole number, of hbr is
a. 1
b. 2
c. 3
d. 4
e. 5

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together