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Slav-nsk [51]
3 years ago
5

Why does an aluminum horseshoe bend but not break when a blacksmith pounds it into shape with a hammer?

Chemistry
1 answer:
Basile [38]3 years ago
7 0
Aluminum is a malleable metal. So it has the ability to bend when heated
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It was calculated that 4.3mL of 0.417 M HCl is required to titrate 11.9 mL of 0.151 M Mg(OH)2. Show evidence 2 HCl(aq) + Mg(OH)2
Lapatulllka [165]

Answer:

See explanation.

Explanation:

Hello,

In this case, for the described chemical reaction:

2 HCl(aq) + Mg(OH)2(aq) → MgCl2(aq) + 2 H2O(l)

We can notice there is a 2:1 molar ratio between the moles of hydrochloric acid and magnesium hydroxide, therefore, at the equivalence point:

n_{HCl}=2*n_{Mg(OH)_2}

And in terms of volumes and concentrations we verify:

V_{HCl}M_{HCl}=2*V_{Mg(OH)_2}M_{Mg(OH)_2}

So we use the given data to proof it:

4.3mL*0.417M=2*11.9mL*0.151M\\1.793=3.594

Therefore, we can conclude the data is wrong by means of the 2:1 mole ratio that for sure was not taken into account. This is also supported by the fact that normalities are actually the same, but the nomality of magnesium hydroxide is the half of the hydrochloric acid normality since the acid is monoprotic and the base has two hydroxyl ions.

Best regards.

4 0
2 years ago
Is an oreo a pure substance or a mixture and why?
pav-90 [236]
Pure oreo would be a mixture 
7 0
3 years ago
What are two characteristic properties of chlorine that distinguish it from oxygen?
sesenic [268]
Well one characteristic gases and the state of matter(one of the distinct form i which  matter exist)
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3 years ago
Determine the mass,in grams, of 2.6 moles of angelic acid , C5H802
Zarrin [17]

Answer:

260.52 g

Explanation:

The Molar Mass of Angelic Acid ( C5H8O2) is 100.2g/mol, so if we multiply the molar mass by 2.6 mols, we should get 260.52g.

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Compare and contrast the outer core and the inner core.
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3 0
3 years ago
Read 2 more answers
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