Select all the correct answers. Which two statements are true?
ED
The definitions for electric force and electromagnetic force are identical.
Electric forces and magnetic forces are different aspects of a single electromagnetic force.
The operation of a motor depends on the relationship between electric and magnetic forces.
magnet must be moving for a magnetic force field to exist.
Reset
Next

d.) the average kinetic energy of the gas particles is greater in container b because its particles move faster.

it is a solid

explanation:

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2