Chemistry, 06.10.2019 10:00 kaylaamberd
Asample of helium gas is placed in a rigid cylinder that has a movable piston. the volume of the gas is varied by moving the piston, while the temperature is held constant at 273 k. the volumes and corresponding pressures for three trials are measured and recorded in the data table below. for each of these trials, the product of pressure and volume is also calculated and recorded. for a fourth trial, only the volume is recorded.
determine the pressure of the helium gas in trial 4. [1]
Answers: 1
Chemistry, 23.06.2019 04:50, mia36492
The diagin dilutepage 6 of 12a6a5(a)fluorine, chlorine, bromine and iodine are placed in the same group of theperiodic table. state the common name used to describe elements in this group.(i)state the group in which the elements are placed and explain whythey are placed in that group.(ii)which of the above named elements is a solid at roomtemperature and pressure?
Answers: 2
Chemistry, 23.06.2019 09:30, tramqpham25
People who practice which of the following diets may run the risk of not getting enough iron. a. gluten free or vegan diet b. diet for managing diabetes c. vegan diet d. gluten free diet
Answers: 2
Chemistry, 23.06.2019 11:00, randyg0531
Which of the following reactions is endothermic? h2(g) + ½ o2(g) h2o(g), h = -57.82 kcal ½n2(g) + o2(g) + 8.1 kcal no2(g) ½ n2(g) + 3/2 h2(g) nh3(g) + 11.0 kcal c(diamond) + o2(g) co2, h = -94.50 kcal
Answers: 2
Asample of helium gas is placed in a rigid cylinder that has a movable piston. the volume of the gas...