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In chemistry, a chemical substance is a form of matter that has constant chemical composition and characteristic properties.[1]It cannot be separated into components by physical separation methods, i.e. without breaking chemical bonds. It can be solid, liquid, gas, or plasma.
Chemical substances are often called 'pure' to set them apart from mixtures. A common example of a chemical substance is pure water; it has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory. Other chemical substances commonly encountered in pure form are diamond (carbon), gold, table salt (sodium chloride) and refined sugar (sucrose). However, simple or seemingly pure substances found in nature can in fact be mixtures of chemical substances. For example, tap water may contain small amounts of dissolved sodium chloride and compounds containing iron, calcium and many other chemical substances.
Chemical substances exist as solids, liquids, gases, or plasma and may change between these phases of matter with changes in temperature orpressure. Chemical reactions convert one chemical substance into another.
Forms of energy, such as light and heat, are not considered to be matter, and thus they are not "substances" in this regard.
Wiki User
∙ 10y ago
Wiki User
∙ 11y agoThe distinction between natural chemicals and artificial chemicals is that natural chemicals can be found in nature, and artificial chemicals exist only when people create them. This does not necessarily mean that one type of chemical is better than another, although many people make that interpretation.
Wiki User
∙ 12y agoI don't know. That's what I'm looking for right now.
Wiki User
∙ 12y agocarbon gasoline and wood
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Is petrol natural?
Yes it is. But anyhow some chemicals are added to it to make it change its properties.
What are some examples of an experiment?
Experiment can be scientific or psychological. They can use samples and observations to gain insight or mix chemicals together to demonstrate reactions.
What are common resources?
A common resource is something that is human made and natural. Water and a forest are examples of some common resources.
What are some examples of the misuse of science or technologly?
some examples are: 1: the nuclear explosion which we are misusing while in other countries people used the nuclear explosions for producing electricity 2: we are misusing the factories we r mixing the chemicals in our clean water and the factories are also producing smoke!
What are floods earthquakes droughts and fires a example of?
Floods, earthquakes, droughts, and some fires are all examples of a phenomenon known as a "natural disaster". Other common natural disasters are hurricanes, tsunami, and volcanic eruptions.
What are some examples of organic chemicals?
bob
What are some examples of natural barriers?
Oceans are some of the natural barriers in the planet.
What are some natural chemicals?
Air, water, carbon dioxide
What are two examples of a enviromental stressor?
Some examples would be: economic status family life peer interactions job environment Stress level
What are some examples of natural dyes?
uhgugu
What are some non examples of a landform?
non examples are anything made by a human on land that is not natural
What are some examples of chemicals that are calcium channel blockers?
There are many chemical drugs which are natural calcium channel blockers. Some include Diltiazem, Amlodipine, Verapimil, and Nifedipine. Many more are available however some are not allowed for sale in the USA.
What is difference between natural and artificial flavors?
Depends on the country but usually means they are flavors derived from natural chemicals (natural flavor) or artificial man made chemicals (artificial flavors). A natural flavor MAY be healthier but it MAY also be unhealthier than artificial flavors. Depending on the country some natural flavors may be a mix of artificial and natural chemicals. In fact, an orange natural flavor will most likely be a mixture of chemicals tat have no relation whatsoever to an orange, or possibly not even a fruit. As such it is a complete secret what the chemicals are and you are better avoiding natural and artificial chemicals altogether.
What are fossil fuels examples of?
Some examples are gasoline, iron ore, coal, natural gas, oil, and natural gas.
Diff. shape synthetic chemical and natural chemicals?
No. Synthetic chemicals are indistinguishable in every way from natural chemicals.
Where does chemicals come from?
Chemicals are natural or artificial.
What are some examples of natural science?
weather etc
