Perform the following operation and express the answer in
scientific notation.
7.296x102 : 9.6x10-9
[?]x10
Remember! The coefficient should be
between 1 and 10.
number

Which of these reactions are redox reactions? check all that apply. cd + hcl → cdcl2  + h2cucl2  + na2s → 2nacl + cuscaco3  → cao + co2          2zns + 3o2  → 2zno + 2so2          ch4  + 2o2  → co2  + 2h2o

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

How many grams of phosphorus are contained in 5.09 moles of phosphorus?