Establece las estructuras de Lewis para los elementos que se presentan a continuación: 4Be, 7N, 11Na, 14Si, 16S, 32Ge, 35Br

We just started a new lesson in chemistry and everyone hates it and i dont get it one bit. i hate school. h el p. balanced equationc3h8+5o2-> 3co2+4h2o1.) if you start with 14.8g of propane(c3h8) and 3.44g of oxygen, which is the limiting reactant -check my answer 2.)what mass of excess reagent is left over? 3.)what mass of carbon dioxide can be made? 4.)what mass of water is produced?

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.