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stich3 [128]
3 years ago
13

What are the examples of Alkaline Earth metals?

Chemistry
1 answer:
Elis [28]3 years ago
5 0
All of group 2: 
Be (Beryllium), Mg (Magnesium), Ca (Calcium), Sr (Strontium)
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Is CO2 a covalent or ionic bond? will give brainliest for the correct answer​
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Answer:

covalent bond

Explanation:

a covalent bond happens between two nonmetals

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4 0
2 years ago
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The heat of vaporization of water at 100°c is 40.66 kj/mol. Calculate the quantity of heat that is absorbed/released when 9.00 g
timofeeve [1]

Answer:

20.3 kJ of heat is absorbed when 9.00 g of steam condenses to liquid water.

Explanation:

Heat is being consumed during vaporization and heat is being released during condensation.

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Molar mass of water = 18.02 g/mol

Hence, to vaporize 18.02 g of water , 40.66 kJ of heat is being consumed.

So, to vaporize 9.00 g of water, (\frac{40.66}{18.02}\times 9.00)kJ of heat or 20.3 kJ of heat is being consumed

As condensation is a reverse process of vaporization therefore 20.3 kJ of heat is absorbed when 9.00 g of steam condenses to liquid water.

5 0
3 years ago
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Its quite vague, instead you could say an atom is the smallest building block which further consists of subatomic particles like protons, neutrons and electrons :)

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Attached is the answer

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