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oksian1 [2.3K]
3 years ago
9

A fallacy is a __________.

Chemistry
1 answer:
zaharov [31]3 years ago
8 0
<span>The correct answer is B. false or mistaken idea often based on illogical or invalid reasoning and facts. This includes things like generalizing when making claims, or things like the ad hominem fallacy where you try to refute one's argument by attacking the person and no the argument. There are numerous different fallacies and avoiding them is the key to making a sound argument when trying to prove something.</span>
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Cutting, melting, bending, or crushing are examples of what kind of change?
Ksivusya [100]

Answer:

those are all physical changes and most physical changes can be undone like crushing a pice of metal you can flatten it back out you anwser is physical change

Explanation:

8 0
3 years ago
Read 2 more answers
1. Pewien tlenek azotu o masie cząsteczkowej 108 u zawiera 74,07% tlenu. Wykonaj stosowne obliczenia i napisz wzór sumaryczny te
love history [14]

Answer:

1. Stąd empiryczny wzór substancji to N₂O₅

2. W związku z tym ilość w gramach chlorku sodu NaCl is 114,4 g.

Explanation:

1. Mamy tutaj;

Masa molowa tlenku azotu = 108u

Masa azotu = 14,0067u

Masa tlenu = 15,999 u

74,07% masy tlenku azotu to tlen

Dlatego masa obecnego tlenu = 108 × 74,07 / 100 = 79,9956 u

Masa obecnego azotu = 108 - 79,9956 = 28,0044u

Liczba moli tlenu = 79,9956 / 15,999 = 5,00003 ≈ 5

Liczba moli azotu = 28,0044 / 14,0067 = 1,99935 ≈ 2

Stąd empiryczny wzór substancji to N₂O₅.

2. Kiedy sód reaguje z chlorem, mamy;

2Na (s) + Cl₂ (g) → 2NaCl (s)

Dlatego 2 mole sodu Na reaguje z 1 molem chloru gazowego Cl₂, z wytworzeniem 2 moli chlorku sodu NaCl

W związku z tym 1 mol sodu Na reaguje z 1/2 molem chloru gazowego Cl₂ z wytworzeniem 1 mola chlorku sodu NaCl

Masa Na obecnego w reakcji = 45 g

Masa molowa sodu = 22,989769u

Liczbę moli sodu w 45 g sodu podano w następujący sposób;

Liczba \, \, moli \, \, Na= \frac{Mass \, of \, Na}{Molowy \, masa \, z \, Na} = \frac{45}{22.989769} = 1.96 \, mole

Z czego 1,96 moli sodu Na reaguje z 1/2 × 1,96 mola chloru gazowego Cl₂ z wytworzeniem 1,96 mola chlorku sodu NaCl

Masa molowa NaCl = 58,44 g / mol

Dlatego masa NaCl = liczba moli NaCl × masa molowa NaCl

Masa NaCl = 1,96 × 58,44 = 114,39001 g ≈ 114,4 g

W związku z tym ilość w gramach chlorku sodu NaCl = 114,4 g.

4 0
3 years ago
What is the first step in creating a unit conversion factor?
NNADVOKAT [17]
Determining the units.
5 0
3 years ago
In the world of chemistry, a 'mole' is a number of something... a very large number of something.
valkas [14]
Mole is equal to 6.02*10^23 atoms, and you have 7.00*10^23 atoms
3 0
3 years ago
What is the electron arrangement for aluminum?
AlladinOne [14]
2,8,3 because Aluminium has the Atomic Number 13
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3 years ago
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