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Which of the following is not a mixture a. pure water b. seawater c. air d. brass?
Answer a. Pure Water is not a mixture - it is a compound. Seawater is a mixture of water and salts, air is a mixture of gases and brass is a mixture (an alloy) of copper and zinc metals.
Many elements found in nature exist as?
The chemical substances found in the atmosphere exist as gases.
What are 5 examples of gases found at home?
5 examples of gases found in the normal home environment include; oxygen (air), nitrogen (most abundant element found in the air), carbon dioxide (air and the bubbles in fizzy drinks), argon in air and finally, methane if there is a gas supply, or propane or butane in fuel gas bottles. Carbon monoxide and SO2. are present in polluted air. You might have helium in a balloon.
Is air a force?
Air is a mixture of gases; oxygen, nitrogen, carbon dioxide and small amounts of various other gases. Air in motio can exert a force on an object. The study of air flow is aerodynamics. It studies how things fly through the air and how fluids or gases flow in a constrained area.
Is clean air a pure substance or a mixture?
Air is a mixture.
Can air be pure?
A pure air can be prepared only in laboratory, by mixing the components. Note that air is not a compound but a mixture of gases. In the nature pure air don't exist - the air is polluted.
Is pure air an element compound solution or heterogeneous?
The pure nitrogen is a chemical element, gaseous at room temperature.
Is air an example of pure substance?
No. Air is not pure substance. Air has all dust and dangerous gases with it. From place to place its composition changes.
Can helium be a pure form?
Helium found in atmosphere will have other gases as impurities. But it can be isolated by suitable method (generally by adsorption of gases) to get pure helium.
Is air around as pure what reason?
air around us is not pure because in air so many gases are mixed like nitrogen , oxygen , carbon etc.
Why is air a pure substance?
Air is considered a pure substance because it is a homogeneous mixture of gases, mainly nitrogen, oxygen, carbon dioxide, and trace amounts of other gases. Each component of air retains its unique chemical properties and cannot be separated by physical means without changing the composition of air.
Is air mixture or a pure substance?
Air is a mixture of several gases, most notably nitrogen, oxygen, and some trace gases (eg, argon).
What gases are in composition of gases found in inhaled air?
carbon dioxideo
Is pure air homogeneous or heterogeneous mixture?
Pure air is considered a homogeneous mixture because the components of air, such as nitrogen, oxygen, and other gases, are evenly distributed throughout.
Why is air classed as a mixture?
Air isn't a pure substance, it is a mixture of a bunch of other gases mainly Nitrogen and Oxygen with small amounts of other gases.
Is air a pure elemental substance?
No. Air is a mixture of gases, predominantly nitrogen and oxygen but also including carbon dioxide, water vapor, and noble gases.
How many what are pure compounds sodium sugar oxygen air iron?
Sodium and iron are pure elements, while sugar and oxygen are pure compounds. Air, on the other hand, is a mixture of gases and not a pure compound.
