how do I named a compound with a branched alkyl group and other alkyl group attach to main chain. For example,2-methylbuthane and methaneattach to the main carbon chain which one come first? and as I said in the topic how do i named alkyl group which has its own branch. Anyone knows...
In fact, the birth of the modern chemical industry was due entirely to serendipity. In 1856, W H Perkins was an 18yr old student trying to synthesize quinine. The reaction failed, and, as is so common with failu...
The number preceding an element symbol or compound formula tells how many atoms or molecules. If no number appears before the symbol, there is only one atom or molecule. For example, consider the formula for the chemical reaction that forms carbon dioxide, C + 2O → CO2. The number 2 pre...
The chemical formula of a compound is X2Y3. If there are 12 atoms of Y, how many atoms of X are there? A. 6 atoms B. 8 atoms C. 10 atoms D. 12 atoms 相关知识点: 试题来源: 解析 B。由化学式 X2Y3 可知,X 和 Y 的原子个数比为 2:3,Y 有 12 个原子,设 X 有 x 个原子,...
How does the chemical compound TBA get into a winery?Dr. Vinny
By definition, you can't reason your way to anything really new, so you must journey into the unknown. 翻译: 如果你想发现新的事物,千里之行的第一步就是要学会与不确定性共存,并学会接受失败如常,因为寻找未知事物的风险就像成为一名从不系安全绳的高空杂技演员一样大。
How to find which coordination compound has higher conductivity? «on:April 06, 2019, 11:46:07 PM » Which compound has a higher conductivity? [CrCl2(OH2)4]Cl.2H2O or [Cr(OH2)6]Cl3 I do not have an idea of how to find it!
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Chemical formulas describe the type and number of atoms within a compound. The molecular formula lists the symbol of each element within the compound followed by a number (usually in subscript). The letter and number indicate how many of each type of ele
Picaridin (KBR 3023) is available in 5% to 20% concentrations and is an effective repellent for flies, mosquitoes, fleas, chiggers, and ticks. Picaridin is a synthetic chemical that mimics the natural compound piperine found in black pepper. Spray products with at least 20% picaridin have ...