The left ventricular ejection fraction (LVEF) test rate is increasingly used as a quality of care indicator for pa-. tients with heart failure. Our study produced benchmark LVEF test rates in a Medicare fee-for-service.
Toluene is a very good solvent because, unlike water, it can dissolve many organic compounds. In many commercial products, toluene is used as a solvent that is present in paint thinners, nail polish remover, glues, and correction fluid. Toluene has many uses in different industries.
Why BaSO4 and AgCl do not dissolve in water?     I do not know why but all chlorides except silver and lead(II) chlorides are soluble.   All sulphates are soluble except barium, lead(II) and calcium sulphate. â¦   All carbonates are insouble except ammonium, potassium and sodium carbonate.