BALANCE THE FOLLOWING EQUATIONS: 1. Na2CO3 + HCl → NaCl + CO2 + H2O

2. NH4NO2 → N2 + H2O

3. SrBr2 + (NH4)2CO3 → SrCO3 + NH4Br

4. Fe3O4 + H2 → Fe + H2O

5. FeS2 + O2 → Fe2O3 + SO2

Each pair of clay balls represents to planetesimals if each plane test molluscum pound of the same material and is separated by the same distance which pair experiences the greatest gravitational attraction

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?