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

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

Why is it possible for different microorganisms to extract energy not only from carbohydrates and other biological molecules but from a large variety of substances?