Chemistry, 09.02.2021 19:40 Svetakotok
Please help, it's a task in science and I'm really bad at this subject.
Answers: 3
Chemistry, 23.06.2019 07:00, jboii11
An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample? a. naphthalene, a molecular solid with the formula c10h8 b. silica, a network solid held together by covalent bonds with the formula sio2 c. calcium chloride, an ionic compound with the formula cacl2 d. water, an molecular compound with the formula h2o
Answers: 2
Chemistry, 23.06.2019 12:50, vinniemccray70
What is the daughter nucleus produced a. when 217(at) undergoes alpha decay? b. when 103(mo) undergoes beta decay? c. when 188(hg) undergoes positron emission?
Answers: 1
Please help, it's a task in science and I'm really bad at this subject.
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