37. A cubic close-packed structure has an a. ABCABC...pattern of layers and a coordination number of 12 b. ABABAB... pattern of layers and a coordination number of 12 c. ABCDABCD... pattern of layers and a coordination number of 4 d. ABBA... pattern of layers and a coordination number of 8 e. AABB... pattern of layers and a coordination number of 8

AME M Inbox (1,600)-fantil@udeledu X Mail- Francesca A Tantillo-Out x Homepage - CHM150-251 Chen X + → Capp.101edu.co < A Z 89'1 Rain coming 2 S # 3 E D C Uranium hexafluoride, UF, is an important compound used in the enrichment of uranium by gaseous diffusion. $ Which of the following best describes where fluorine can be found on the periodic table? 4 40 R % F 5 B) Noble gases A) Alkaline earth metals C) Lanthanides D) Actinides E) Halogens G O Question 19.b of 23 6 B Aktiv Chemistry OME V Y H * الات & 7 -0✓ INN N PrtScn * 8 J Home End o M ( O 9 K O ) 0 L Alt Pgup m P Pon 12 B ? □ ( 4D Update ***/***/// 512 PM D 7/6/2022 < X Submit Del Backspace Enter Shift

M Inbox (1,600)-ftantil@udeledu xMail-Francesca A Tantillo-Out ← Capp.101edu.co < 1 90°F Mostly sunny 2 S 3 De Silane, SiH, is a colorless, pyrophoric, toxic gas that is used to deposit elemental silicon for semiconductor and photovoltaic applications. How many total valence electrons does the SiH. molecule have? E 4 4 40 $ x HOL R EXP #12: Geometry-CHM150-2x Aktiv Chemistry D F % 5 T G A Question 18.c of 23 6 Y 4 & H & 7 L U PrtScn 8 N Home T ( 9 K X End O 1 4 7 +/- 0 PgUp 2 P 5 8 1 ☆ 3 6 9 0 PgDn ^P* + = 1 O Update) x 100 Submit C X 5:58 PM 7/6/2022 Back

doug began preparing laboratory surface disinfectant from chlorine bleach. he put on a chemical resistant apron and gloves and then removed the bleach container from the special chemical cabinet. he carefully placed the container on the laboratory benchtop and began to add the chlorine bleach to distilled water. nearby workers began complaining of burning eyes. doug was reprimanded by the supervisor. Explain why.