What is a pure compound? What is the compound formula of sodium nitrate? What is an electrovalent compound? A salt which absorbs water is called What is the type of bond between ions in salt? What is the name for the compound below?
It has no known components or substructure, and therefore is believed to be an elementary particle.这种题最好有图解说比较好2.What is an element, mixture, molecule, and compound?什么是元素,混合物,分子和化合物A chemical element is a pure chemical substance consisting of one type of atom.In ...
What is pure acetone? In chemistry, a pure chemical compound is a chemical substance which contains only one substance and a particular set of molecules or ions. Pure acetone contains only the molecules or ions of acetone.Is nail polish remover pure acetone?The...
In chemistry, a compound is a substance made up of two or more different chemicalelementscombined in a fixed ratio. When the elements come together, they react with each other and form chemical bonds that are difficult to break. These bonds form as a result of sharing or exchangingelectronsbe...
The main classifications of matter include the categories element and compound, either of which may also be called a substance (which is a less specific term), and mixture, of which there are also many sub-categories.Definition of a (Chemical) Mixture:...
a compound or a single element. The material is no longer a pure substance if it has been mixed with another pure substance. Two pure substances mixed together is known as a mixture. Scientists often use filtration to separate pure substances from a mixture in order to analyze the materials....
First, it has to be clarified if the compound acts in a genotoxic or non-genotoxic manner. In the latter case, an ineffective (safe) threshold dose without cancer risk can be assumed. In addition, it needs to be investigated if the mode-of-action causing tumors in laboratory animals is ...
did i make a new compound or is that was diluted CuCl2 looks like.. Also, i saw a sample of CuCl2 and it was that same blue color. My solid is Green, altho I have seen it turn blue when some of the liquid splashed out and evaporated. I am thinking that the green color is ...
What is the difference between a pure substance and a mixture? • Add this info to your notes that you took from the last section. • Compound- A substance composed of two or more elements that are chemically bonded to form a new substance with different properties. • Example 1- Wat...
Compounding pharmacies have to use pure, pharmaceutical-grade ingredients when they mix up a compounded drug. These must be made at a facility that’s registered with the FDA. There are differences in how compound and traditional drugs are labeled, too. Compounded medicine labels don’t follow ...