Eli states that sodium phosphate is a mixture because it is composed of both sodium ions and phosphate ions.
which is the best analysis of eli’s statement?
a. it is correct because each ion is a pure substance, so sodium phosphate is made up of two pure substances.
b. it is correct because the composition of sodium phosphate changes depending on the sample.
c. it is incorrect because sodium phosphate is a compound that has a single composition.
d. it is incorrect because the two types of ions in sodium phosphate cannot be seen.

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.

Why is carbon ideal for making different compounds?

  the mississippians were considered to be  horticulturalists, which means they were