What is the ​pH​ of an acid with a [H+] of 1.0×10−6 M?

What is the number of moles in 15.0 g ash3?

How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?

What are the advantages of using the metric system? designed as a decimal system making conversions simpler more accurate system of measurement has prefixes that correspond to an amount to use with all base units used by the entire scientific community