1.the particles in a_are packed very closely together. 2.the_in a liquid are loosely together. they can flow. 3.in a gas the_between the particles are bigger. if u re genius then answer this question class 4

1. Solid

2. Particles.

3. Space.

Explanation:

1. The particles in a solid are packed very closely together. This is the most reason why solid particles have definite shapes of volume. This closeness is as a result of strong intermolecular forces force that exist between the particles. Hence, they can not flow but only vibrates about their mean position. Solids can not be compressed because of the strong intermolecular forces between their particles.

2. The particles of liquid are loosely together. In liquid, the particles are loosely packed and free to move about to certain degree. This is so because the intermolecular force between the particles are not as strong as those within the solid particles. Hence liquid has no definite shape but they have definite volume. They only assume the shape of the container they are poured into. Liquid can no be compressed..

3. In a gas, the space between the particles are bigger. This is so because the intermolecular forces between the particles are negligible i.e very small and so, the gas particles are free to move about and only restricted by the wall of the container they poured into. This negligible intermolecular forces are the reason why gas has no definite shapes and no volume. They can be compressed to fill a particular container.

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