A STUDENT DRAWS A PICTURE OF PHOTOSYNTHESIS FOR A CLASS ASSIGNMENT. WHY DOES THE STUDENT USE LABELS LIKE H2O AND COZ?
a
The student used the chemical symbol to represent the elements in each molecule.
b
The student wants to use the longest way to write the names of the molecules.
с
The student included all of the chemical combinations from the periodic table in the picture.
d
The student knew the elements could not be written in any other format.

13. calculate the initial concentration (before precipitation) of carbonate ions after the addition of each 0.05 ml of solution b to the 1.00 l beaker of solution a. divide the work among group members and write the answers in the table in model 3. assume the volume change as solution b is added is negligible. 14. notice the initial concentrations of zn2+ - and cu2+ in the table in model 3. a. explain how these were obtained from the data in model 2. b. as solution b is added and precipitates form, do these initial concentrations change? 15. use the data in model 2 to indicate the presence of precipitate (either znco3 or cuco3) after each 0.05 ml addition of solution b in model 3. 16. use the initial concentrations of carbonate ions and zinc ions to calculate the reaction quotient, qsp for the zinc carbonate scenarios in model 3. divide the work among group members and write the answers in the table in model 3. 17. use the initial concentrations of carbonate ion and copper(ii) ions to calculate the qsp for the copper(ii) carbonate scenarios in model 3. divide the work among group members and write the answers in the table in model 3.

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

How far is the region from the equator or control climate