What is the difference between the empirical and molecular formula of a compound?Can they ever be the same?Explain. 答案 (1)分子式是用元素符号表示物质(单质、化合物)分子的组成及分子量的化学式.而(2)最简式又叫实验式,它仅能表示化合物组成中各元素原子数目的比例.通常是以单独的元素符号来表示这类...
A common example of a molecular compound is water or H2O, in which the hydrogen and oxygen atoms share a pair of electrons between them, thus forming covalent bonds. Other compounds like HCl (hydrogen chloride), CH4(methane), and CO2(carbon dioxide) are also molecular compounds. Properties of...
In addition, we also need to understand the toxicity and environmental impact of phenol, as far as possible to reduce its human and environmental hazards. Previous: What are the role and uses of citric acid Next: Production process and preparation method of acetic acid ...
Given that the molecular mass of a compound is 360 g/mol, and that it has an empirical formula of CH2O, what is its' molecular formula? What is the empirical formula of benzene? The molecular formula mass of the compound CH2O is 120 amu. What are the subscripts in the actual molecular...
Methylxanthines are molecular compounds that are derived either naturally or synthetically from xanthine, and are commonly found in medications for certain respiratory problems. They are at once stimulants that can increase heart rate and blood flow and relaxants that can open blood vessels and loosen...
When you see a molecular diagram or read a molecular formula, it may not immediately be apparent whether you are seeing a molecule or a compound. In fact, you may not even know if there is a difference between these two designations at all! To put it simply, all compounds are molecules...
Which of these are compounds, and which are molecules? Explain. Answers: Salt (NaCl) contains two different elements, sodium and chloride, so it is a compound. Molecular hydrogen (H2) contains two atoms of the same element of hydrogen. Since H2 contains two or more elements, but the ...
Based on the molecular formula, determine whether each compound is an alkane, alkene, or alkyne. (Assume that the hydrocarbons are noncyclical and there is no more than one multiple bond.) a) CH16 b) CH6 c) C7H16 d) C2H2 What is the condensed structural fo...
A molecular formula describes which atoms are present in a molecule. The subscript number found after the elemental symbol indicates the number of atoms present for each element in the molecule. Answer and Explanation: The molecular formula of ammonium nitrate is NH4NO3. The molecular formula indicat...
There's no clear consensus on whether ionic compounds are molecular-based. Some sources consider them to have an underlying molecular structure, in which case, all compounds are molecular structures. Other sources treat the ionic compound as more of alattice networkthan a series of molecules, diff...