Triethylamine [(CH3CH2)3N] is a molecule in which the nitrogen atom is ___ hybridized and the CNC bond angle is ___. () A sp2; >109.5° B sp2; C sp3; >109.5° D sp3; E sp; 109.5° 相关知识点: 试题来源: 解析 D 反馈 收藏 ...
Rank these from largest to smallest, bacteria, organelle, cell, atom, virus, protein, molecule. What organelle contains genetic material? What is an organelle? Give some examples. Which organelle is considered the powerhouse of the cell? This is where energy in the form of ATP is made. a)...
Which of the following is not a type of subatomic particle? a) alpha particle b) electron c) neutron d) proton Which of these particles has a negative charge? A. Proton B. Neutron C. Electron D. Nucleus E. an atom What is the name for particles made of ...
whose opening diameter is smaller than that of said top-opening; Then, directly pass the deposit material of gas molecule or atom state through said reduced nano-aperture; thereby a nano-structure of nano quantum dot, nano rod or nano ring with smaller nano scale is directly formed on the ...
结果1 题目 Water is composed of two atoms of hydrogen and one atom of oxygen per molecule, which represents11.2 percent hydrogen and 88.8 percent oxygen by ().A.waterB.massC.heatD.volume 相关知识点: 试题来源: 解析 B 反馈 收藏 ...
A small strip, especially of paper or parchment (or of some material attached to parchment to carry the seal), but also of iron, brass, land, etc. 1 Pronounce judgment on. They labeled him unfit to work here. 1 Distinguish (as a compound or molecule) by introducing a labeled atom. 1...
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The chemists do not know what is to be the atom ; for instance, whether hydrogen gas is to consist of two pieces of matter in union constituting one molecule, and these molecules fly- ing about ; or whether single molecules each indivisible, or at all events undivided in chemical action,...
! Scroll so that part of each graphic is on your screen and you may see our brick wall on your left in front (top) and in back (bottom). Try to make them switch, together! Look at a wall and say to yourself, "Go to front!" or "Go to back." That may help you get them ...
Two hydrogen atoms and one oxygen atom form a polar molecule, with a slightly positive end and a slightly negative end. [ ] A. which B. that C. it D. one