B. The amount of pressure exerted by a solid is solely dependent on its mass
let me know if i am wrong
The reaction releases heat and gives net energy to its surroundings. The energy needed to initiate the reaction is less than the energy released.
Answer:
Explanation:
6.90 mol x grams
2As + 6NaOH = 2Na3AsO3 + 3H2
6 mol 2 mol
192 g/mol
6.90 mol NaOH x 2 mol Na3AsO3/6 mol NaOH== 2.3 mol Na3AsO3
2.3 mol Na3AsO3 x 192 g/mol = 442 g Na3AsO3
