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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 elements combine to make glass and concreate?
uranium and hydrogen and silicon thats all
What elements combine to make and concrete?
Common glass is made from sand, SiO2, Na2O and CaO. Concrete is a mixture of rocks (aggregate), sand, and water.
Do elements combine to make compounds?
yes
Which two elements combine to make a stable compound?
sodium and potassium
What elements combine to make mercury oxide?
Murcury (Hg) and Oxygen (O).
What elements combine to make glass and concrete?
Common glass is made from sand, SiO2, Na2O and CaO. Concrete is a mixture of rocks (aggregate), sand, and water.
What elements combine to make glass and concreate?
uranium and hydrogen and silicon thats all
What elements combine to make glass and concrrete?
Common glass is made from sand, SiO2, Na2O and CaO. Concrete is a mixture of rocks (aggregate), sand, and water.
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
What elements combine to make and concrete?
Common glass is made from sand, SiO2, Na2O and CaO. Concrete is a mixture of rocks (aggregate), sand, and water.
Do elements combine to make compounds?
yes
How are elements and molecules related?
Elements chemically combine to make molecules.
When two elements combine does it make a compound?
Yes
What do elements combine to form?
Elements combine to form chemical compounds.
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
