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3 years ago

What physical property makes wax good for making sculptures

2 answers:

3 0

It has to be intensive, which means it does not depend on the amount of the substance. Boiling point, melting point, and density are three intensive physical properties.

slavikrds [6]3 years ago

3 0

Answer: Melting point.

Explanation:

The melting point of wax is very low which makes it suitable for making sculptures. It needs molding, cutting and melting of wax to make a sculpture.

such kind of modification in the wax is done by melting it at low temperature. More heat and effort is not required with wax as compared to other substances.

The wax cools down very easily after melting, it is hard when cools down and soft when heated to make the proper shape. All these properties makes the wax more suitable for making sculptures.

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a gas has a volume of 350ml at 45 degree celsius if the volume change to 400ml what is the new temperature

jenyasd209 [6]

28 c

Explanation :
The correct equation to use with these kinds of questions is the combined gas low .

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3 years ago

How is modeling useful to scientists?

baherus [9]

C it illustrates possible outcomes

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3 years ago

Ammonium nitrate, a common fertilizer, is used as an explosive in fireworks and by terrorists. It was the material used in the t

Sladkaya [172]

Explanation:

The given balanced reaction is as follows.

$2NH_{4}NO_{3} \rightarrow 2N_{2} + O_{2} + 4H_{2}O$

It is given that mass of ammonium nitrate is 86.0 kg.

As 1 kg = 1000 g. So, 86.0 kg = 86000 g.

Hence, moles of $NH_{4}NO_{3}$ present will be as follows.

Moles of $NH_{4}NO_{3}$ = $\frac{mass given}{\text{molar mass of NH_{4}NO_{3}}}$

= $\frac{86000 g}{80.043 g/mol}$

= 1074.42 mol

Therefore, moles of $N_{2}$ , $O_{2}$ and $H_{2}O$ produced by 1074.42 mole of $NH_{4}NO_{3}$ will be as follows.

Moles of $O_{2}$ = $\frac{1}{2} \times 1074.42 mol$

= 537.21 mol

Moles of $N_{2}$ = $\frac{2}{2} \times 1074.42 mol$

= 1074.42 mol

Moles of $H_{2}O$ = $\frac{4}{2} \times 1074.42 mol$

= 2148.84 mol

Therefore, total number of moles will be as follows.

537.21 mol + 1074.42 mol + 2148.84 mol

= 3760.47 mol

According to ideal gas equation, PV = nRT. Hence, calculate the volume as follows.

PV = nRT

1 atm \times V = 3760.47 mol \times 0.0821 L atm/mol K \times 580 K[/tex] (as $307^{o}C$ = 307 + 273 = 580 K)

V = 179066.06 L

Thus, we can conclude that total volume of the gas is 179066.06 L.

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3 years ago

A substance changes from a solid to a liquid at its boiling point. True or false

svetoff [14.1K]

The answer is false
For an ex: an ice is a solid once it's melts cuz of the heat it's a liquid but if u boil the liquid then it's at it's boiling point

Idk I'm not that really good in science sorry......

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3 years ago

Read 2 more answers

The test tube that contained the calcium metal was probably the most difficult of the test tubes to clean. Why was aqueous HCl u

natita [175]

Answer:

The HCl will dissolve the calcium readily

Explanation:

HCl will react with d calcium, dissolving it to produce Hydrogen gas

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3 years ago