Nitrogen and oxygen are gases, nonmetals.
Yes, the compound word in the sentence is "classroom," which is made up of the words "class" and "room" combined into a single word.
Geologists primarily use the chemical composition of minerals to separate them into different classes. This includes elements present, their proportions, and how they are arranged within the mineral structure. Other characteristics such as crystal structure, hardness, and cleavage can also be used in conjunction with chemical composition for mineral classification.
These are examples of mineral classes. Halides are minerals that contain halogen elements, oxides are minerals composed of oxygen and a metal, and sulfates are minerals that contain sulfate ions bonded to a metal.
Those are categories of minerals known as mineral classes. They group minerals based on their chemical compositions and structures. Each class has unique properties and characteristics that help differentiate one mineral from another.
There is dust, pollen and spores from any number of plants, and a whole bunch of tiny solid material that has come from combustion. This includes stuff from vehicle exhausts, from incereration of all kinds of materials. (There are lots of Forrest fires and other fires that are intentionally set to clear land as well as all the fires around the world used for cooking and/or heating.) Things from the burning of coal, and from the burning of wood. A lot of other things from industrial processes (other than gases) are there as well.
Which of these is not of the three main classes of elements?Read more: Which_of_these_is_not_of_the_three_main_classes_of_elements
A compound is two or more elements into one thing for example H2O is 2x Hydrogen 1x Oxygen
Now are known approx. 60 000 000 chemical compounds; all element can form more or less compounds.
For example acids, bases, salts.
The two classes of nitrogen bases are purines and pyrimidines. Purines include adenine and guanine, which have a double-ring structure, while pyrimidines include cytosine, thymine, and uracil, which have a single-ring structure.
Metals and metalloids are conductive.
Metals and metalloids are conductive.
Password inherits from which one of the following classes?
An ammoxidation is the reaction of ammonia and oxygen with any of several classes of organic compound.
Three main classes are:MetalsNon metalsTransition elementsThey are present in periodic table.
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metalsnon metalssemi metals