A) a column
example: earth alkaline metals
Answer:
1. C + O₂ → CO₂
2. C + CO₂ → 2 CO
3. Fe₂O₃ + 3 CO → 2 Fe + 3 CO₂
Answer:
A. a system that can be affected by the outside environment, by an exchange of matter or energy
Answer:
She is making kinetic energy when she lifts the ball and when the ball is above her head the ball gains potential energy.
