Determine the density of an object that has a mass of 45.5g and a volume of 9.5cm3? What is the mass of an object with a density of 5.5g/cm3 and causes a graduated cylinder filled with water rise from 20mL to 24.6mL? Determine the electron configuration of O? How many valence electrons? Determine the electron configuration of Ca? How many valence electrons? If a gas has a volume of 4.0L at constant pressure at 25 degrees Celsius, what is the new volume of the gas if the temperature is raised 45 degrees? 5.5L of gas at 1atm of pressure at constant temperature. If the pressure of the gas is increased to 2atm what is the new volume? Balance the following equations and determine the type of reaction: _____ N2 + _____ H2 _____ NH3 _____ Zn + _____ HCl _____ ZnCl2 _____ HgO _____ Hg + _____ O2 Determine the GFM of ZnCl2 What is the mass of 5.5moles of ZnCl2? Determine the GFM of CH3COOH How many moles of CH3COOH are in 33.712 x 1023 molecules? + _____ H2 Show the Lewis Dot structure for Na Cl What kind of bond would form? Write the formula and name the compound. Show the Lewis Dot Structure for Ca F Write the formula for the compound that would result from a reaction between Fe (II) and O. Name the compound. Write the formula that would results from NH4 and N. Name the compound.