Which element has the larger Zell value.
a.) Li or K b.) C or O c.) Cor P d.) C or Se e.) Li or Br

Match the following items. match the items in the left column to the items in the right column. 1. 1/1,000 precision 2. uncertainty value of measurement milli- 3. 1,000 accuracy 4. instrument to measure volume balance 5. degree of exactness of a measurement centi- 6. instrument to measure mass graduated cylinder 7. correctness of a measurement ± value 8. 1/100 kilo-

Atmospheric pressure is 1.00 atm, but air is only composed of 21.0% (by moles) oxygen. thus, the partial pressure of oxygen in air is less than 1.00 atm. what is the millimolar concentration of dissolved oxygen for a lake or stream under the partial pressure of oxygen and a temperature of 20 ∘c?

Gabe amodeo, a nuclear physicist, needs 8080 liters of a 3030% acid solution. he currently has a 20 %20% solution and a 60 %60% solution. how many liters of each does he need to make the needed 8080 liters of 3030% acid solution?