2. Chalk is composed of Calcium, Carbon and Oxygen. In order to find the molar mass of chalk you need to add one calcium, one carbon and three oxygen atoms. Mass of calcium: g

Mass of carbon: g

Mass of oxygen: g x3 = g

Total molar mass: g/mol

3. Initial mass of one piece of chalk and record your results: __23.3_g

4. Find the final mass of the chalk (g) used to write your names: __13.3__g

5. Determine the amount of chalk (g) used to write your names: g (Initial-Final)

6. Convert the amount of grams of chalk (CaCO3) to moles. (remember to use the molar mass)

7. Now convert the amount of moles to atoms. (remember 1mol=6.02x1023 atoms)

the tides are influenced by both the moon and the sun, it's easy to see that when the sun lines up with the moon and the earth, as during a new moon or full moon, the tidal effect is increased. these are known as spring tides, named not for the season, but for the fact that the water "springs" higher than normal. on the other hand, if the sun and the moon are 90 degrees apart in relation to an observer on earth as during the first quarter moon or third quarter moon, then high tides are not as high as they normally would be. this is because despite its greater distance, the sun's mass allows it to exert enough gravitational force on the oceans that it can negate some of the effects of the moon's pull. this phenomenon of lower high tides is called a neap tide. if you need more information on this topic visit moonconnection.com.

16

explanation:

the marks go by 4s

explanation:

answerambulatory;