9. Write the following chemical equations as word equations:
a) 4 Fe + 3 O2 → 2 Fe2O3​

What challenges did you encounter during the circuit training program?

J. j. thomson’s experiment disproved the theory that an atom

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water