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Common glass (called soda lime glass) is made from sand, SiO2, Na2O and CaO. Lead may be added to make the glass more flexible, or to improve its refractive index and make it sparkle, such as in crystal glasses.
[We add the Na2O) to lower the melting point and thus lower cost, but this makes the glass more soluble (!) and we add the CaO to counter this.]
You must have seen glass bottles with a bluish bloom on them - this is solution attack - often from alkali.
Pure SiO2 glass is used where high melting point is needed, and where the contamination from the Ca or Na could not be tolerates in a scientific process.
Borosilicate glasses have great use, for their composition can be tailored to have an essentially zero temperature expansion. Of great use in lab glassware, oven doors, and stove tops.
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What two elements combine to make ammonia which is found in cold interstellar gas clouds?
Ammonia is a compound of the elements hydrogen and nitrogen.
What elements combine to make glass and concreate?
Glass is made by combining sand, soda ash, and limestone, which are heated together to form a molten mixture that solidifies into glass. Concrete is made by combining cement, water, sand, and gravel, which form a paste that hardens into a solid material.
What elements combine to make glass anbd concrete?
Glass is primarily made of silica sand, soda ash, and limestone, combined and heated to form a liquid which is then cooled to create the solid glass material. Concrete is typically a mixture of cement, water, sand, and aggregate such as gravel or crushed stone. The combination of these materials in specific proportions results in the final properties of glass and concrete.
When elements combine to form compounds their properties do not change.?
False. Hydrogen and oxygen - both gases - combine to form water - a liquid.
Do elements combine to make compounds?
Yes, elements combine in specific ratios to form compounds. A compound is a substance made up of two or more different elements chemically bonded together. The chemical bonds between elements in compounds are formed through interactions at the atomic level.
What elements combine to make glass concrete?
Common glass is made from sand, SiO2, Na2O and CaO. Concrete is a mixture of rocks (aggregate), sand, and water.
How do you combine elements to make other elements?
nuclear fusion
How are elements and molecules related?
Elements chemically combine to make molecules.
When two elements combine does it make a compound?
Yes
Why do atoms of different elements combine to bond?
to make babies
What do the six elements that make up living thiings combine to make?
Proteins
How do you make skyscraper on alchemy game on droid?
Combine Brick House and Glass
What two principle elements combine to make sand?
Silicon and oxygen
If two or more different elements combine chemically to make a?
Molecule
Which two elements combine chemically to make water?
Hydrogen and Oxygen.
How element combine?
elements combine because no body noes :DBecause elements become ions then combine
What elements combin to make salt?
Sodium and chlorine combine to make the most common salt, sodium chloride. It should be noted though, that many different elements can combine to make many different salts.
