All categories

4 years ago

The table below shows some physical properties of two unknown samples.

Chemistry

2 answers:

jasenka [17]4 years ago

8 0

Answer: Option (c) is the correct answer.

Explanation:

Properties which do not depend on the amount of matter are known as intensive properties.

For example, boiling point, melting point, reactivity with an acid etc.

On the other hand, properties which depend on the amount of matter are called extensive properties.

For example, volume, length, mass etc.

Intensive properties are helpful in determining whether two or more substances are similar in nature because these type of characteristics does not depend upon change in conditions or amount.

Hence, when the two given substances have same boiling point then it means they have same intensive property. And, only a substance of similar type can have same boiling point.

Thus, we can conclude that the statement the two substances are the same because their intensive property is the same.

Nezavi [6.7K]4 years ago

5 0

Answer: The two substances are the same because their intensive property is the same.

Explanation: the answer is The two substances are the same because their intensive property is the same.

this is the correct answer because the boiling point is a is a bulk property this mean that is a property of substance or sample which does not change as the amount of substance or sample changes.

also we have to keep in mind that the boiling point is is a physical property that is not dependent on the size or mass of a sample.

so we can conclude that you can change the mass, the volume of this sample or this substance the boiling point always will be the same.

You might be interested in

put the contributions to the understanding of the atomic structure in order from most recent at the top to the earliest at the b

r-ruslan [8.4K]

Answer:

From Top to Bottom:

- Democritus coming up with the concept of an atom

- Dalton discovering that atoms are the smallest part of an element

- Rutherford discovering the nucleus of an atom

- Thomson discovering electrons

- Bohr modeling electrons orbiting the nucleus

- Schrodinger modeling electrons in the electron cloud

Explanation:

The best way to think about this is from the inside out. Democrats (who lived long before any of the other scientists mentioned) was the one who thought of the idea of the atom. - Therefore, this must be first because all other choices are elaborations on the idea that atoms exist. Next must be Dalton. Dalton saw atoms as "cannonballs" if you will; a solid mass. So then after that, Rutherford and his gold foil experiment (he discovered that some rays he shot through gold foil were deflected back; ie the existence of concentrated areas in an atom, ie the nucleus). Then we get into the information on electrons. We must start with discovery (Thomson). Heres where it gets complicated. Electrons don't actually orbit the nucleus, they exist in electron clouds. So it would be Bohr, who came up with the idea that electron exist outside the nucleus, then Schrodinger, who elaborated on Bohr's theory. Hope this helps!

Nat, Junior

Accel + AP Chem student

5 0

1 year ago

Identify the type of question, mg->mg^2+ +2e-

mash [69]

The equation is an oxidation half-reaction, because the Mg is losing electrons to

form Mg²⁺.

Loss of Electrons is Oxidation and

Oxidation Is Loss of electrons.

7 0

3 years ago

The same amount of heat transferred into identical masses of different substances produces different temperature changes. Calcul

vivado [14]

The assumption is Originally at 20°C

Now

m=1
Q=1
c=0.108

We need ∆T

Q=mc∆T
1=1(0.108)∆T
0.108∆T=1
∆T=1/0.108=9.26°C

Now

∆T=T_f-20
9.26=T_f-20
T_f=29.26°C

Option A

8 0

2 years ago

Take my all points (╥﹏╥) happy to help you all

Stels [109]

Answer:

whywhywhywhywhywhywhywhywhywhywhy

3 0

3 years ago

Read 2 more answers

the temperature of a gas is raised from 10 to 20 degree celsius. Will the volume double the pressure if mass and pressure do not

Sonbull [250]

Answer:

There will be No change in volume.

Explanation:

Ideal Gas Equation is used to solve this :

PV=nRT;

P is pressure in Pa,

V is volume in $m^3$ ,

n is number of moles of gas;

R is the universal gas constant, 8.31 J/K mol

T is temperature in Kelvin

when mass is said to be fixed, the number of moles will also be fixed, too. So combining both the constant term n and R which gives

PV=kT

where k is constant.

V= $\frac{k T}{P}$

So the equation represents that, Volume V will remains unchanged when pressure and temperature are both doubled, therefore the numerator term T and the denominator term P are both gets affected by multiplication of 2, hence by cancellations:

V = $\mathrm{k} \frac{T \times 2}{P \times 2}$ = $\frac{k T}{P}$

3 0

3 years ago