Hydrogen and Oxygen
H2O as in HOH or Water... H-IJKLM-O its letters H to O or H2O
Ice
The chemical formula for ethanol is C2H5OH.
2c4h10 + 13o2 => 8co2 + 10h2o (I am having some trouble with my typography today, but all those letters above should be capitalized.)
The sequence "hijklmno" represents a playful way to refer to water. If you look closely, the letters can be seen as a sequence of the alphabet from "h" to "o," which encompasses the letters for "H2O," the chemical formula for water.
Put a subscript ed letter or letters in parentheses next to the chemical substance. (s) is solid (H2O(s) is ice). (l) is liquid (H2O(l) is liquid water). (g) is gas (H2O(g) is water vapor). (aq) means something is dissolved in water (NaCl(aq)).
The abbreviations for centimeters of water are cmH2O and cm H2O. The only difference being a space between the two sets of letters.
water, H2OBut in chemistry the symbols must be upper case unless the symbol consists of two letters (Magnesium, Mg) and then the first letter must be upper case.
KOH + HNO3 --> KNO3 + H2O -------------------------------------site mis-correcting again. All letters capitalized.
2h2 + o2 -> 2h2o stupid wiki is not allowing capitalization again!! Know that all the letters are capitals.
6co2 + 6h2o -> c6h12o6 + 6o2 Site messes up again! All letters capitals
H2O H2O H2O