Which ion is a cation? A. Ca2+ B. Cl2 C. S2- D. Br-

Which of the following pressures is equal to 760 mm hg? 2.0 atm 101.3 pa 101,300 kpa 101,300 pa

Working with si (metric) units for each of the following commonly used measurements, indicate its symbol. liter gram milliliter kilogram meter centigram milligram centimeter kilometer second millimeter milliseconds

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?