A student is creating a model of a convex lens. Which two qualities of a convex lens should the student include in the model? Select all that apply A

light is focused

B

light is reflected

C

light is spread out

D

light is broken into bands of different colors

E

light is directed toward the center of the lens

F

light is directed away from the center of the lens

SCIENCE NOT CHEMISTRY JUST NEEDED TO PUT A SUBJECT SO I CAN CONTIUE

the answer is c i believe

58750.08068 is the answer i think

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.