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Tanzania [10]
2 years ago
8

What is a horizontal row of elements on a periodic table

Chemistry
2 answers:
gizmo_the_mogwai [7]2 years ago
8 0

Answer:

periods.

Explanation:

Mariulka [41]2 years ago
3 0

They are called Periods. Lesser known as series

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Which of these items best describes the arrangement of electrons in an atom of sulfur? A. Two electrons in its first energy leve
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Two electrons in it's first energy level; eight electrons in it's second energy level; and six valence electrons in it's outermost energy level
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3 years ago
How many moles of KMnO, are in 66.38 g of KMnO?
schepotkina [342]

Answer:.603moles

Explanation:do given over 1 so 66.38 over 1 then multiply by 1 over 110.035344(the atomic mass of KMnO) and then you get the answear

5 0
3 years ago
Solid aluminum metal reacts with aqueous zinc chloride to produce solid zinc metal and aqueous aluminum chloride
yuradex [85]

Answer:

2Al + 3ZnCl₂    →    3Zn + 2AlCl₃

Explanation:

Chemical equation:

Al + ZnCl₂    →    Zn + AlCl₃

Balanced Chemical equation:

2Al + 3ZnCl₂    →    3Zn + 2AlCl₃

This is the example of single displacement reaction. Al displace the zinc and form aluminium chloride and zinc metal.

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Law of conservation of mass:

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This law was given by french chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

7 0
3 years ago
For a fusion reaction to happen, matter needs to be in which of the following states? A. plasma B. liquid C. solid D. gas
Ksivusya [100]
Matter needs to be in a plasma state for fusion to occur.
3 0
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Which of these statements correctly describes covalent bonds?
Goshia [24]
The most appropriate answer is B !!

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8 0
3 years ago
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