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mash [69]
4 years ago
14

How many valence electrons does magnesium have

Chemistry
2 answers:
SashulF [63]4 years ago
7 0

Magnesium has just two valence electrons

Nastasia [14]4 years ago
7 0

Answer:

<em><u>2 Valence Electrons</u></em>

Explanation:

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3 years ago
An isotope of potassium with a half-life of roughly one billion years is often used in radioactive dating. This isotope decays t
Archy [21]

Answer : The chemical symbol for the element that results from this process is, (Ar) for argon.

Explanation :

Electron capture : In this decay process, a parent nuclei absorbs an electron and gets converted into a neutron. Simply, a proton and an electron combines together to form a neutron. Mass number does not change in this process.

_Z^A\textrm{X}+_{-1}^0\textrm{e}\rightarrow _{Z-1}^A\textrm{Y}

The equation for the given reaction is,

_{19}^{40}\textrm{K}+_{-1}^0\textrm{e}\rightarrow _{18}^{40}\textrm{Ar}

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4 years ago
What name is given to a fuel made from living organisms (such as wood) or their waste?
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4 years ago
A gardener waters the plants in a garden using a garden hose during a drought. The gardener observes that most of the water give
Anna71 [15]

Answer:

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Explanation:

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8 0
3 years ago
Read 2 more answers
A balloon has 18.9 moles of hydrogen gas at a volume of 428 L. What would the volume of the gas be if the balloon had 14.0 moles
den301095 [7]

Answer:

V₂ = 317 L

Explanation:

Given data:

Initial number of moles of hydrogen = 18.9 mol

Initial volume of gas = 428 L

Final volume = ?

Final number of moles = 14.0 mol

Solution:

According to the Avogadro law,

Number of moles of gas is directly proportional to the volume of gas at constant temperature and pressure.

Mathematical expression:

V₁/n₁  =  V₂/n₂

V₁ = Initial Volume of balloon

n₁  = initial number of moles

V₂ = Final volume of balloon

n₂ = Final number of moles

Now we will put the values.

428 L / 18.9 mol =  V₂/ 14 mol

V₂ =428 L × 14 mol  / 18.9 mol

V₂ = 5992 L /18.9

V₂ = 317 L

6 0
4 years ago
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