百度试题 结果1 题目Methanol is used to produce methanoic acid.What type of substance reacts with methanol to produce methanoic acid?[1 mark]oxidising (agent) 相关知识点: 试题来源: 解析 oxidising (agent) 反馈 收藏
vinegar is a homogeneous mixture of ethanoic acid and water. Heterogeneous Mixtures - the (two or more) substances that form the mixture are not evenly distributed throughout the mixture, e.g. oil and water. Solutions - special type of homogeneous mixtures in which one substance (called the ...
What makes an acid strong?Question:What makes an acid strong?Acids:Acids are substances that are made up of molecules that can donate or give off hydrogen ions (H+). Acids have a pH less than 7, and they can usually dissolve metals and have a sour taste. Examples of acids include hydr...
To understand what a strong acid is, one must first understand what makes a substance an acid. All substances made of matter have a molecular structure made up of atoms of different elements. These atoms are bound together in specific structures that make up the variety of substances found tod...
If you have ever used litmus paper and tested a substance that turned the paper from red to blue, you have just dipped the paper into an alkaline solution. But what makes a solution alkaline, other than its pH? That is, what atomic or molecular factors underlie the result of a pH test...
Step 4: Converting to pulp Filament yarns are chopped and mixed with water to form a fibrous substance called wet pulp. This wet pulp can be sold directly or dried to create and sell as dry pulp.Industries Applications where aramids are used Thanks to their high strength, heat resistance...
In a water solution at neutral pH, PAA is an anionic polymer, i.e. many of the side chains of PAA will lose their protons and acquire a negative charge. This makes PAAs polyelectrolytes, with the ability to absorb and retain water and swell to many times their original volume. Dry ...
Ampelopsin, also known as dihydromyricetin and DHM, when purported as an effective ingredient in supplements and other tonics, is a flavanonol, a type of flavonoid. It is found in the Ampelopsis species japonica, megalophylla, and grossedentata; Cercidiphyllum japonicum; Hovenia dulcis; Rhododendro...
Ceramides are made up of a substance called sphingosine. Sphingosine is a chain of carbon atoms with anamino acidattached to it. It has different forms that bind to other fatty acids to form ceramides. Based on the form of sphingosine and the fatty acid that binds it, there are 12 types...
Slime activators (borax, saline solution, or liquid starch) change the position of the molecules in the glue in a process called cross-linking! A chemical reaction occurs between the glue and the borate ions, and slime forms the new substance. Instead of flowing freely as before, the ...