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Yanka [14]
3 years ago
8

Describes how Anders Celsius devised the temperature scale that bears his name

Chemistry
1 answer:
shusha [124]3 years ago
3 0
He used a tube of mercury and marked the height of the mercury when placed in an ice bath as 0 degrees celsius, when he placed the tube in a boiling, he marked the height of mercury and called that 100 degrees celsius, he marked it linearly between 0-100 degrees celsius
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Silicon is prepared by the reduction of K₂SiF6 with Al. Write the equation for this reaction. (Hint: Can F⁻ be oxidized in this
BlackZzzverrR [31]

4Al + 3K2SiF6 = 6KF + 3Si + 4AIF3 is the reaction for preparation of silicon by the reduction of K₂SiF6 with Al.

AlF3xH2O-based inorganic compounds are referred to as aluminium fluoride. They are all solids without colour. Aluminium fluoride is a crystalline (sand-like), odourless, white, or colourless powder. In addition to being used to make aluminium, it also functions as a flux in welding processes and in ceramic glazes and enamels.

Silicon (Si) is created by reducing potassium silicofluoride with aluminium as the reducing agent (K2SIF6). While K2SiF6 is reduced to Si in this equation, aluminium is oxidised to aluminium fluoride. As a result, the balanced equation describing aluminum's reduction of K2SiF6 to silicon non-metal is as follows: 4Al + 3K2SiF6 = 6KF + 3Si + 4AIF3

Learn more about aluminium fluoride here:

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3 0
11 months ago
Help I’m so confused
ira [324]

Answer:

Me too.  What is this for? A Lab. You are missing some kind of key info bud.

Explanation:

4 0
3 years ago
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The precision of a measuring instrument is based on the fineness of its scale subdivisions.
Liono4ka [1.6K]
The answer is True . The precision of a measuring is based on the fitness of its scale subdivisions
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The rate of effusion of oxygen to an unknown gas is 0.935. what is the other gas?
Kamila [148]

Answer:

N2

Explanation:

Rate of effusion is defined by Graham's Law:  

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Rate 2 is unknown so put 1.

Solve for x (M2).

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5.29 = sq rt x

5.29^2 = 27.975 = 28  

N2 has a molar mass of 28 so it is the correct gas.

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3 years ago
Consider the bonds in iron(III) oxide. Are the bonds more ionic or more covalent?
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<span>the bonds in iron(III) oxide are more ionic</span>
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