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3 years ago

Identify and explain the process shown below. Name any two products obtained during this process and state their uses.

Chemistry

1 answer:

lapo4ka [179]3 years ago

5 0

Answer:

This is heating limestone

Explanation:

Process:

limestone is heated strongly. After a while, the limestone begins to go cloudy. Test tube is heated too much that it is beginning to soften it. After removing limewater, test tube cools down, the pressure in the test tube drops and air pressure pushes the cold the liquid into the hot test tube with terrible result.

Products:

Limestone is also known as calcium carbonate and Limewater

Click on the link provided to show the video

https://youtu.be/RLL5rT_DeKc

or search heating calcium carbonate

you will find a video

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Be sure to answer all parts. find the molar solubility of bacro4 (ksp= 2.1 × 10−10) in (a) pure water × 10 m (b) 1.6 × 10−3 m na

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A) in pure water :

by using ICE table:

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by using ICE table:

According to the reaction equation:

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by substitution:

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Explanation:

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$E = k \frac{q}{r^{2} }$

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k is a constant of the value 8.99 x 10⁹ Nm²/C²

r is the radius of the spherical conductor

q is the total charge in the sphere

Given diameter d =41.0cm, radius r = 20.5cm = 0.205m (convert cm to m)

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we are asked to determine how many excess electrons must be added to the surface of the sphere to produce this electric field

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q = E x r²

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To determine the number of electrons, we can divide the charge q by the charge on an electron e (1.6 x 10⁻¹⁹C)

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