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Natasha_Volkova [10]
3 years ago
12

I need Coefficient numbers!!!!!

Chemistry
1 answer:
KengaRu [80]3 years ago
4 0
Not sure about #6 , but i got all the other answers

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What is true of neutrons? They have no charge and are located inside the nucleus. They have no charge and are located outside th
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They have no charge and are located inside the nucleus
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3 years ago
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Amphetamine (C9H13N) is a weak base with a pKb of 4.2.
QveST [7]

Weak base: [OH⁻] = √Kb.C

pKb = 4.2

\tt Kb=10^{-4.2}

c = concentration

MM Amphetamine (C9H13N) = 135.21 g/mol

c = 215 mg/L = (0.215 g : 135,21 g/mol) / L = 0.00159 mol/L = 1.59  x 10⁻³ mol/L

\tt [OH^-]=\sqrt{10^{-4.2}\times 1.59\times 10^{-3}}=3.17\times 10^{-4}

pOH = 4 - log 3.17

pH = 14 - (4 - log 3.17)

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4 0
2 years ago
Pls help I don’t understand: Which of these is a balanced chemical reaction?
nata0808 [166]

Answer:

C) 2CO + O₂ →   2CO₂

Explanation:

The equation C is correct.

2CO + O₂ →   2CO₂

This equation have four oxygen atom and two carbon atoms on both side of equation. So it is correctly balanced.

All others are incorrect:

A) CO + O₂ →   CO₂

this is incorrect because there are three oxygen atoms on left while two atoms on right.

B) CO + 2O₂ →   2CO₂

this is incorrect because there are five oxygen atoms on left while four atoms on right.

D)  2CO + 2O₂ →   2CO₂

this is incorrect because there are six oxygen atoms on left while four atoms on right.

3 0
2 years ago
Please help fast :/
mash [69]

Answer: C- 1.65 moles

Explanation:

HCl = 1 + 35.45 = 36.45 g/mol    

3 0
2 years ago
Why are alloys formed​
Angelina_Jolie [31]

Explanation:

Alloy are formed because

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  • They are more attractive
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3 years ago
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