Using the chemical equation above, answer the fo 2. Balance the chemical equation.
4 Fe(s) + 302(g) → 2Fe2O3 + 1625 kJ
3. Classify the chemical reaction as either exothermic

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.