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2 years ago

Formulas for the compounds below. Sulfur Trioxide Sodium hydroxide

Chemistry

2 answers:

Talja [164]2 years ago

7 0

Answer:

$\huge\boxed{Sulfur \ Trioxide\hookleftarrow}$

$\huge\boxed{Sodium \ Hydroxide\hookleftarrow}$

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

# ꧁❣ RainbowSalt2²2² ࿐

GarryVolchara [31]2 years ago

6 0

Sulphur Trioxide = So3

Sodium Hydroxide = NaoH

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Identify the group of elements that does not readily combine with other elements.

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Which nuclide is most likely to be radioactive and synthetic

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When a hydrogen atom makes the transition from the second excited state to the ground state (at -13.6 eV) the energy of the phot

viktelen [127]

Answer : The energy of the photon emitted is, -12.1 eV

Explanation :

First we have to calculate the $'n^{th}'$ orbit of hydrogen atom.

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$E_n=-13.6\times \frac{Z^2}{n^2}ev$

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Energy of n = 2 in an hydrogen atom:

$E_3=-13.6\times \frac{1^2}{3^2}eV=-1.51eV$

Energy change transition from n = 1 to n = 3 occurs.

Let energy change be E.

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3 years ago

What is the atomic mass number for boron?

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Answer:

the atomic mass number for boron is 5

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4 years ago

Could someone help me with this?

Varvara68 [4.7K]

Solving part-1 only

KMnO_4

Transition metal is Manganese (Mn)

Actually it's the oxidation number of Mn

Let's find how?

$\\ \tt\Rrightarrow x+1+4(-2)=0$

$\\ \tt\Rrightarrow x+1-8=0$

$\\ \tt\Rrightarrow x-7=0$

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x is the oxidation number

Purple as per the color of potassium permanganate

$\boxed{\begin{array}{c|c|c}\boxed{\bf Tube} &\boxed{\bf Charge} &\boxed{\bf No\:of\; electrons\: loss}\\ \sf 2 &\sf +6 &\sf 6e^-\\ \sf 3& \sf +2 &\sf 2e- \\ \sf 4 &\sf 4 &\sf 4e^-\end{array}}$

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2 years ago