I have 3 questions. 1. How many molecules of alumina (Al2O3) will be formed by burning 32.4 g of aluminum? How many grams of oxygen were involved in the reaction?
2. How many grams of sodium were involved in the reaction with 30.53 g of chlorine (Cl2)? How Many Grams and Moles of Sodium Chloride (NaCl) Are Formed?
3. How many grams of silver were involved in the reaction with 12.8 g of oxygen (O2)? How many grams and moles of silver oxide (Ag2O) are formed?

Select the correct answer from each drop-down menu. describe what happens to a carbon-11 atom when it undergoes positron emission. the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons

What is the percent composition of ca(oh)2? 37.7% ca, 53.0% o, and 10.3% h 45.5% ca, 38.2% o, and 16.3% h 54.0% ca, 43.0% o, and 2.7% h 64.7% ca, 27.0% o, and 8.3% h

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false