Group 7A -1 HČi Group 6A -2 PbS2 A. Use the rules (in order) to assign oxidation numbers to each of the elements in the compounds below. iodic acid H HIO, chlorite ion CI CIO2 hydroxylamine H NH,OH B. Determine the oxidation state for each of the elements below. carbonate ion The oxidation state of carbon in is co,2- calcium nitride The oxidation state of nitrogen in CazN2 is tetrahydroxozincate ion is Zn(OH),- The oxidation state of zinc in С. Use the rules (in order) to assign oxidation numbers to each of the elements in the compound arsenic acid As H3ASO4 phosphorous tribromide P Br PBR3 phosphoryl trichloride CI POCI3

Find the weighted average of these values. Value Weight 5.00 75.0% 6.00 15.0% 7.00 10.0% weighted average:

Can you show us how to do number 8. ? Please see the attached pic.This is not a graded question as it is a practice question . I am 60 years old and helping my son prepare for the AP exam in a few months. We do questions at the back of the textbook by Zumdahl and Zumdahl

I need help with questions 1-7?

What is green chemistry? Choose the BEST answer. O Chemistry that uses only recycled chemicals. O Chemistry that makes something green in color. O Chemistry that comes from plants or uses plant materials. O Chemistry that uses non-toxic, non-harmful chemicals.

All boxes please. Answer choices: analytical technique or purpose

Assume the data below was collected for two different sample solutions using the same experimental procedure you carried out. Based on the two lines shown below, which solution (orange data points or blue data points) corresponds to the sample that would look DARKER in terms of how much light goes through the glass. 0.9 y= 4.7713x - 0.0728 R0.99953 0.8 0.7 0.6 0.5 0.4 0.3 0.2 y1.414x - 0.0546 R0.99642 0.1 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 0.1 [Concentration, M] orange data points (lower line) blue data points (upper line) Absorbance

Arrange the values according to magnitude. 3.8 x 10-² 9.0 × 10-6 7.0 × 10-6 Greatest Least Answer Bank 51000 1.4 × 105

1 please assist with number one in the picture.  I want to be we are correct. This is not a graded question as it is a practice question . I am 60 years old and helping my son prepare for the AP exam in a few months. We do questions at the back of the textbook by Zumdahl and Zumdahl

Select ALL of the metals listed below. O hydrogen (H) calcium (Ca) O gold (Au) silicon (Si) iodine (1I) O uranium (U)