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Leona [35]
3 years ago
7

What is a precipitate.

Chemistry
1 answer:
horrorfan [7]3 years ago
4 0
Cause (a substance) to be deposited in solid form from a solution.
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Answer : The chronological order events related to the formation of the universe with the stages in which they occurred are given below;

  1. Expansion from an infinitely hot point  - Which is also called as the Planck era from which the big bang theory arrived. It is assumed that from the moment of initial expansion to 10^{-43} seconds afterwards, and many also refer that it was from an infinitely hot point.
  2. Hydrogen fuses into helium  - This was called as the era of Nucleosynthesis which resulted from the Fusion and it continued in the Era of Nucleosynthesis ( which is 0.001 seconds – 3 minutes)
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For better understanding please refer the attachment.

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4 years ago
4al + 3o2 → 2al2o3 indicate how many electrons are transferred in the formation of one formula unit of product.
nekit [7.7K]

The balanced reaction is:

<span>4 Al  +  3 O2  -->  2 Al2O3</span>

 

Each Aluminum atom wants to lose 3 electrons to become isoelectronic with Oxygen. Each Oxygen on the other hand wants to gain 2 electrons. Since the reaction shows 6 Oxygen atoms in the product and each want to gain 2 electrons, therefore a total of 12 electrons are transferred. Since the problem ask for the electrons transferred per formula unit, hence:

<span>6 electrons         (ANSWER)</span>

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Which scientist bombarded gold sheets with alpha particles to look at the atom?
Alekssandra [29.7K]

the correct scientist is rutherford


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