Although coal is a complex mixture of substances, its elemental composition can be approximated by the formula . Using this formula, predict the amount of CO₂ released from the combustion of 1.00 × 10⁶ metric tons of coal (about the annual average for a coal-fired power plant). 1 metric ton = 1 ×10³ kg.
a. 3.66 × 10⁹ kg
b. 3.11 × 10⁹ kg
c. 8.50 × 10⁸ kg
d. 3.11 × 10⁵ kg

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant

What is the main reason why some developing countries fear the increase the free trade policies around the world?

State one important difference between a physical change and a chemical change?