A substance formed when two or more elements are mixed together without chemical reaction is known as
The third naturally occurring allotrope of carbon is
Hydrogen atoms do not have
In filtration the liquid (and anything dissolved in the liquid) passes through holes in the filter paper but the solid particles are too big and
Compounds always contain the same ratio of
A strip of filter paper is also known as
The property of objects in which you sight cannot see through the object is known as
Dry ice (solid CO2) when heated, will change into
The two elements i.e. carbon and hydrogen, are foundation units of
The process of heating a solution to separate soluble solute from solvent is known as
The most common classifications of elements in the periodic table are, metal and
Gold, silver, copper and carbon are examples of
In second stage, the petroleum gas is passed to a condensing column, in which it becomes cooler as the height
A molecule of pure water contains one atom of oxygen and two atoms of
The chemical formula for water is
Substance that is able to get dissolved in the solvent is said to be
Nitrogen acts as inert gas at
Oxygen gas is a gas that possesses about half of the mass of
A compound is a pure chemical substance made of two or more different chemical
The mix of pigment in plants can be separated by the process of
The shiny appearance is found in a
Simple chromatography is carried out on
When a gas is condensed below its boiling point, its state changes into
A common method of separating an insoluble solid from a liquid is known as
Hydrogen is also used in
Non-metals are dull in appearance, this is why they do not reflect
Air is mixture of
A technique in which two liquids are separated by the heating process is known as
The substance that has physical properties opposite to those of metals is known as
One molecule of methane is made up of one carbon and four
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