Write a summary paragraph discussing this experiment and the results. Use the following questions and topics to help guide the content of your paragraph.
1. What was your hypothesis? According to your data, do you think your hypothesis was correct? (Be sure to refer to
your data and graph in answering this question.)
2. Summarize any difficulties or problems you had in performing this experiment that might have affected the results.
Describe how you might change the procedure to avoid these problems.
3. Explain how a graphical analysis can be used to explore the relationship between any two scientific variables.

the answers would be

the first one and the second one

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o