How many grams of hydrogen (H2) are needed to produce 1.80 g of water (H2O) according to this equation? MW of H2 = 2.00g/mol; H2O = 18.0g/mol. Show your work 2H2 + O2 → 2H2O

How many compounds have polar bonds but are nonpolar overall as a molecule H2O, CO2, CF4, SO2, SO3?  You need to explain your reasonings to support your answer for the credits

How many grams of H2O are needed to produce 150 g of Mg(OH)2? . MW of Mg(OH)2 is 58,02g/mol.  MW of H2O is 18.0g/mol. Show your work to get credits.Mg3N2 + 6H2O →3Mg(OH)2 + 2NH3

Write the correct formula for aluminum and carbonate.   

What element is undergoing reduction (if any) in the following reaction? CH4(g) + 2O2(g) → CO2(g) + 2 H2O(g)

How many grams of MgO are produced when 40.0 grams of O2 react completely with Mg? MW of MgO = 40.31g/mol; O2 = 32.0g/mol 2Mg + O2 → 2MgO

Calculate the molar mass of ammonium carbonate (NH4)2CO3 . N = 14.0g/mol; H = 1.00g/mol; C = 12.0g/mol; O = 16.0g/mol. Show your work.

Using the VSEPR model, the molecular geometry of the central atom in SO3 is .

How many atoms are in 5.80 moles of He? 1.0mol = 6.02 x 1023 atoms

How many moles of fluorine are in 3.2 moles of xenon hexafluoride (XeF6)? Show your work.