Chemistry, 30.06.2019 12:10 holmesleauja
The isotope carbon-14 has 6 protons and an atomic mass of 14. carbon-14 has:
Answers: 2
Chemistry, 22.06.2019 14:50
Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.
Answers: 1
Chemistry, 22.06.2019 20:00
Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
Answers: 3
Chemistry, 22.06.2019 23:00
What is the most common reason for matter changing its state?
Answers: 1
The isotope carbon-14 has 6 protons and an atomic mass of 14. carbon-14 has:...
History, 24.07.2019 09:00
Chemistry, 24.07.2019 09:00
Mathematics, 24.07.2019 09:00
Computers and Technology, 24.07.2019 09:00
Mathematics, 24.07.2019 09:00
Social Studies, 24.07.2019 09:00
Mathematics, 24.07.2019 09:00