A scientist is preparing Aluminum Oxide (Al2O3) by reacting solid Aluminum and Oxygen gas together as shown by this chemical equation:4Al + 3O2 → 2Al2O3 The scientist measures the mass of Aluminum before the reaction and finds 107.92 grams. The scientist measures the mass of Aluminum Oxide after the reaction and finds 299.91 grams. The scientist concludes that 95.99 grams of Oxygen gas must have reacted with the Aluminum. Explain the law that the scientist used to predict the amount of Oxygen gas in the reaction and how that law was used to find the amount of Oxygen gas.

answer: at room temperature (roughly 20 degrees c), you can dissolve 203.9 grams (or 200 grams) of sugar in 100 ml of water. as water temperature increases, the amount of sugar that will dissolve increases, up to about 500 grams of sugar in 100 ml water at 100 degrees c.

explanation:

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .