Answer: Stomach problems are something we can all relate to, unfortunately. Heartburn, abdominal cramping, gas, bloating, and diarrhea, among other stomach disturbances, are very common and are some of the chief complaints for people buying over-the-counter (OTC) medications. There are many products on the market to treat symptoms of mild gastrointestinal disturbances.
252 is a composite number because it has factors other than 1 and itself. It is not a prime number. The 18 factors of 252 are 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, and 252. The factor pairs of 252 are 1 x 252, 2 x 126, 3 x 84, 4 x 63, 6 x 42, 7 x 36, 9 x 28, 12 x 21, and 14 x 18.
The oxidation number of sodium in the Na+ ion is +1, for example, and the oxidation number of chlorine in the Cl-ion is -1. The oxidation number of hydrogen is +1 when it is combined with a nonmetal. Hydrogen is therefore in the +1 oxidation state in CH4, NH3, H2O, and HCl. The oxidation number of hydrogen is -1 when it is combined with a metal. Hydrogen is therefore in the -1 oxidation state in LiH, NaH, CaH2, and LiAlH4.