Every time a child visited a cousn who has 2 cats, the child's eyes turned red, itched, and began to water. then, the child began to have trouble breathing. the child reacted this way because?

Which change to the system wood cause the freely-moving piston to lower?

Which liquid (h2o, h2o + soap, or h2o + salt) has the strongest cohesion and adhesion? (need now plz)

We are hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?