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jok3333 [9.3K]
3 years ago
15

Identify the three basic ingredients used in glass and give an example of each​

Chemistry
1 answer:
kirill [66]3 years ago
4 0

Answer:

Sand (SiO2 silica) In its pure form it exists as a polymer, (SiO2)n.

Soda ash (sodium carbonate Na2CO3) ...

Limestone (calcium carbonate or CaCo3) or dolomite (MgCO3)

Explanation:

I am pretty sure you know what sand is, Soda ash is a fine white colored powder that is extracted from the ashes of plants growing in sodium rich soils. Limestone is is a common type of carbonate sedimentary rock.  

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What units do chemists normally use for density of liquids, solids and gas? Explain the
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Answer:

We can define density as per unit volume. The SI unit to measure the density of solid, liquid and gas is kilogram per cubic metre (kg/m3) and in the centimeter–gram–second system of units (cgs unit) is gram per cubic centimeter (g/cm3).

Explanation:

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3 years ago
Isotope Atomic Mass (amu) Percent Abundance
exis [7]

Answer:

The average atomic mass is closer to Si- 28 because this isotope is present in more percentage in the sample.

Explanation:

Given data:

Atomic mass of silicon= ?

Percent abundance of Si-28 = 92.21%

Atomic mass of Si-28 = 27.98 amu

Percent abundance of Si-29 = 4.70%

Atomic mass of  Si-29 = 28.98 amu

Percent abundance of Si-30 = 3.09%

Atomic mass of  Si-30 = 29.97 amu

Solution:

Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)+(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass = (92.21×27.98)+(4.70×28.98)+(3.09×29.97) /100

Average atomic mass =  2580.04 +136.21+92.61 / 100

Average atomic mass = 2808.86 / 100

Average atomic mass  = 28.08amu.

The average atomic mass is closer to Si- 28 because this isotope is present in more percentage in the sample.

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An acrostic poem with the word energy
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Eating good food gives us more energy. Natural gas is used for heat and for cooking. Electricity and coal are two forms of energy. Renewable energy includes sea currents and solar power. Geothermal energy is natural heat from the inside of the earth. You need energy in order to move.
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Answer:

i do not know

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