If an electric discharge produces 300 l of ozone (o3), how many l of oxygen (o2), are required? 3O2=2O3

The graph above shows how the price of cell phones varies with the demand quantity. the equilibrium price for cell phones is where both supply and demand quantities equal $100, 5,000 5,000, $100

What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)? a. 5.0 × 103 b. 5.0 × 10-3 c. 5.0 × 1017 d. 5.0 × 10-17

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled