How do stimuli (ph, temperature, heat, anything that causes the hydrogel to change) cause hydrogels to change?

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

How do forces between particles in gases compare to forces in the other states of matter? o a. the forces in gases are stronger than forces in solids but weaker than forces in liquids. o b. the forces in gases are weaker than forces in solids but stronger than forces in liquids. o c. the forces in gases are weaker than forces in solids and liquids. o d. the forces in gases are stronger than forces in solids and liquids. submit

If two objects at different te,peraure are in contact with each other what happens to their temperature