Chemistry, 01.10.2019 05:30 jenstets05
Acertain radionuclide is used to diagnose lymphoma. an atom of this radionuclide contains 31 protons and 36 neutrons. which statement is correct about the radionuclide?
a. the atomic number is 31, the mass number is 67, and its symbol is 67/31 ga.
b. the atomic number is 31, the mass number is 67, and its symbol is 31/64 ga.
c. the atomic number is 67, the mass number is 31, and its symbol is 67/31 ga .
d. the atomic number is 67, the mass number is 31, and its symbol is 31/64 ga .
Answers: 2
Chemistry, 22.06.2019 07:40, sadcase85
22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na, so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g
Answers: 1
Chemistry, 22.06.2019 15:00, emmalie52
Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .
Answers: 1
Chemistry, 22.06.2019 15:10, strodersage
Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?
Answers: 1
Acertain radionuclide is used to diagnose lymphoma. an atom of this radionuclide contains 31 protons...
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