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Sidana [21]
4 years ago
13

Why does knowing the mass of an object not help you identify what material the object is made from?

Chemistry
1 answer:
jeka57 [31]4 years ago
4 0
Because mass is not always the same for objects made from the same material. Just because an object has the same mass as another doesn’t mean they are the same material.
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Please help!! <br><br> Is this an:<br><br> Acid<br><br> Base <br><br> Neither
Liono4ka [1.6K]

Answer:

it is a weak acid

acid

Explanation:

formaldehyde is a weak acid (pK greater than 13),

3 0
2 years ago
The heat of vaporization of 1-pentanol is 55.5 kj/mol, and its entropy of vaporization is 148 j/k.mol. what is the approximate b
KonstantinChe [14]
As you can see, the unit of heat of vaporization is in kJ/mol, while the unit for entropy of vaporization is in J/mol·K. Since it is vaporization, this occurs at the boiling point. Thus, the formula would be:

Boiling Point = ΔHvap/ΔSvap

Make sure the units are consistent.

Boiling point = 55.5 kJ/mol * 1000 J/kJ / 148 J/mol·K = <em>375 K or 102°C</em>
7 0
3 years ago
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allochka39001 [22]

Answer:

9 is the correct answer

4 0
3 years ago
Explain why non-metals tend to be poor conductors using the term electronegativity.
Marrrta [24]

Explanation:

Components that throughout chemical processes appear to acquire electrons to achieve anions are considered non-metals. These were all elements which are electronegative. Those who are – anti conductors of electricity and heat, fragile and disadvantaged.

8 0
3 years ago
The ratio of oxygen to carbon by mass in carbon monoxide is 1.33:1.00. part a find the formula of an oxide of carbon in which th
zheka24 [161]

To calculate the molecular formula, convert the mass ratio into molar ratio as follows:

mass ratio of O:C=2:1

molar mass of carbon is 12 g/mol and that of oxygen is 16 g/mol thus, number of moles can be calculated as follows:

n=\frac{m}{M}

calculating ratio,

O:C=\frac{2 g}{16 g/mol}:\frac{1 g}{12 g/mol}=\frac{1}{8}:\frac{1}{12}=12:8=3:2

thus, molecular formula will be C_{2}O_{3}

5 0
3 years ago
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