What does the -ite or -ate ending in a polyatomic ion mean?

a. oxygen is in the formula
b. sulfur is in the formula
c. nitrogen is in the formula
d. bromine is in the formula

The graph above shows how the price of cell phones varies with the demand quantity. the equilibrium price for cell phones is where both supply and demand quantities equal $100, 5,000 5,000, $100

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?

Ahelium balloon contains 16.9 l of helium at stp. how many atoms of helium are in the balloon