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jolli1 [7]
3 years ago
10

What is the similarity between chalk, wood, candle and cotton?

Chemistry
1 answer:
Vinil7 [7]3 years ago
6 0
All of them are insoluble in water and all of them are made up of atoms...that's all.

hope it helps you
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The molar madd of Ca(OH)2
Nonamiya [84]
What you have to do is find a periodic table and add the mass of each atom that the compound is made of.

Ca= 40.1
O= 16.0
H= 1.01

keep in mind that you have to also account for how many atoms of each there are in the molecule. for example, in Ca(OH)2, there are one Ca, two O and two H

so the molar mass of Ca(OH)2= 40.1 + (2 x 16.0) + (2 x 1.01)= 74.12 g/mol
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dlinn [17]

Answer:

1 and 3.

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3. The molecules go from an organized way (the atom are joined together) to a disorganized way, thus the entropy increases.

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Ionization energy and electronegativity show similar trends in the periodic table. Describe these trends. What is the significan
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