Jack prepared two glasses half full of room temperature water. He added a whole Alka-Seltzer® antacid tablet to glass #1 and a crushed Alka-Seltzer® antacid tablet to glass #2. He stirred the mixtures in both glasses at the same time. After one minute, he observed that there was still some antacid at the bottom of glass #1 while all the antacid in glass #2 disappeared. Why does increasing the surface area of antacid affect its rate of dissolving in water?

It decreases the size of the water particles and the amount of water that are in contact with the antacid particles.
It decreases the surface area of water that is in contact with the antacid, making the antacid less soluble in water.
A. It increases the area of the antacid that is in contact with water, allowing water to B. get to the particles more easily.
C. It increases the size of the antacid particles and makes them spread more easily among the water particles.

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Calcium chloride +gold(1) oxide—>

Which explanation is true about what happens to a ray of light when it strikes a mirror? a. a light ray is transmitted toward a mirror at a certain angle. the light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray. b. an incident ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line. c. a reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line. d. an incident ray strikes a mirror at an angle with a line parallel to the mirror. the light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line. you so much! : -d take the time to try and answer correctly.