Group the following electron configurations in pairs that would represent elements with similar chemical properties.

a. 1s22s22p5
b. 1s22s1
c. 1s22s22p6
d. 1s22s22p63s23p5
e. 1s22s22p63s23p64s1
f. 1s22s22p63s23p64s23d104p6

1. (a) and (b)
2. (a) and (c)
3. (a) and (d)
4. (a) and (e)
5. (a) and (f)
6. (b) and (c)
7. (b) and (d)
8. (b) and (e)
9. (b) and (f)
10 (c) and (d)
11. (c) and (e)
12. (c) and (f)
13. (d) and (e)
14. (d) and (f)
15. (e) and (f)

Agas occupies 475 cm^3 at 313k. find its volume at 367k. you must show all of your work to receive credit. be sure to identify which of the gas laws you will be using

How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options:

7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation. 8. when a 2.5 mol of sugar (c12h22o11) are added to a certain amount of water the boiling point is raised by 1 celsius degree. if 2.5 mol of aluminum nitrate is added to the same amount of water, by how much will the boiling point be changed? show all calculations leading to your answer or use 3 – 4 sentences to explain your answer. 9. if 5.40 kcal of heat is added to 1.00 kg of water at 100⁰c, how much steam at 100⁰c is produced? show all calculations leading to an answer. 10. the freezing of water at 0⁰c can be represented as follows: h2o (l) ↔ h2o(s) the density of liquid water is 1.00 g/cm3. the density of ice is 0.92 g/cm3. in 3 – 4 sentences explain why applying pressure causes ice to melt.