Calculate the concentration of h3o⁺ in a solution that contains 6.25 × 10-9 m oh⁻ at 25°c. identify the solution as acidic, basic, or neutral. a) 6.38 × 10-9 m, basic b) 1.60 × 10-6 m, acidic c) 7.94 × 10-11 m, acidic d) 7.38 × 10-3 m, basic e) 4.92× 10-5 m, acidic

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal. b. he is determining chemical properties that are sufficient to identify the metal. c. he is determining physical properties that are insufficient to identify the metal. d. he is determining chemical properties that are insufficient to identify the metal.