What is a mineral used in making fertillizer
1. silver
2. silica
3. tin
4. gypsum

Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass

A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.