Mercury forms two common ions, mercury (1) and mercury (2). What is the correct term for the mercury (2) ion? A. mercuric. B. mercurite. C. mercuride. D. mercurous.

Mass in grams of 4.26 mol Si

A 5.00 g sample of an anhydrous Group II metal nitrate loses 3.29g in mass on strong heating. Which metal is present? A magnesium B calcium C strontium D barium

Which element is reduced in this reaction? cr2o72-+3hno2+5h+→2cr3++3no3-+4h2o enter the chemical symbol of the element?

A new compound was recently discovered and found to have an atomic weight of 342.38 amu. This element has two isotopes, the lighter of which has a mass of 340.91 amu and an abundance of 68.322%. What is the mass of the heavier isotope?

When light enters a pair of glasses, it what when it hits the glass

A woman carriers her 100-newton child for a distance of 50 meters to the child's bedroom. How much work does the woman do?

Which statement best describes the compressibility of a gas? A Increasing the temperature of a gas decreases the pressure. B Increasing the temperature of a gas increases the pressure. C Increasing the pressure on a gas decreases the volume.

How many grams are in 3.0 moles of KCI (potassium chloride) ?

3 During a flame test, a lithium salt produces a characteristic red flame. This red color is produced when electrons in excited lithium atoms (1) are lost by the atoms (2) are gained by the atoms (3) return to lower energy states within the atoms

Select the answers below that represent the ionic compounds in this list: na2so4 h2so4 ch3-ch3 n2o4 cacl2 ca3 (po4) 2