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3 years ago

Based on the following chart,which statement below is not true

Chemistry

2 answers:

UkoKoshka [18]3 years ago

5 0

Answer:

D) The particles in lead are more spread out than those in corn oil.

Explanation:

The higher density an object has, the less spread out the particles in the object is. SInce lead's density is 11.35 and corn oil's density is 0.90, corn oil's particles would be more spread out.

Veseljchak [2.6K]3 years ago

3 0

D. The particles are more spread out than those in corn oil

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Which question about dogs could be answered through investigation

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"How fast does an Australian terrier grow?" is the answer

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3 years ago

If 27.5 mL of 16.0 M nitric acid stock solution is added to 300. mL of water, what is the molarity of the diluted solution?

pochemuha

Answer:

0.72M

Explanation:

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8 0

3 years ago

Help please-

anzhelika [568]

Answer:

Oxygen and Carbon are in the non-metal section. Both are in 2nd period while Carbon is in group 4A and Oxygen is in group 6A.

Oxygen has more valence electrons than carbon. I wish I could give you a more accurate explanation why on paper, but all you need to do is count the electrons on the largest shell.

Here's the orbital notation of Carbon: 1s^2 2s^2 2px^1 py^1

Carbon's largest shell is 2. Count the electrons on shell 2, and you get 4 valence electrons.

Orbital notation of Oxygen: 1s^2 2s^2 2px^2 py^1 pz^1

Oxygen's largest shell is 2. So, like with carbon, count the electrons on the largest shell. You get 6.

There is a way easier way of interpreting this where you do not even have to write the orbital notation. I wish I can explain, but just know the periods and the group numbers.

7 0

3 years ago

PLEASE HELP

LenaWriter [7]

Hello!

I don't know a lot of this but after doing just a bit of research I think the answer is either A. or C. but I think it is A.

Hope it helps?

5 0

3 years ago

Which of the following statements is TRUE?

Karo-lina-s [1.5K]

Answer:

The correct option is E.

Explanation:

Average speed of the gas molecules = $v_a$

$v_a=\sqrt{\frac{2RT}{M}}$

T = Temperature of the gas molecule

M = molar mass of gas molecule

R = gas constant

$v_a\propto \frac{1}{M}$

Higher the molar mass of the molecule lesser will be the speed and vice versa.

Hence, statement A is not true.

Graham's Law.

This law states that the rate of effusion or diffusion of gas is inversely proportional to the square root of the molar mass of the gas. The equation given by this law follows the equation:

$\text{Rate of diffusion}\propto \frac{1}{\sqrt{\text{Molar mass of the gas}}}$

Larger the molar mass that larger the molecule lessor will be the effusion and vice versa.

Hence, statement B is not true.

According to Boyle's law, pressure of the gas is inversely proportional o the volume occupied by the gas at constant temperature. And same can also be observed from ideal gas law:

$PV=nRT$

$P=\frac{nRT}{V}$

$P\propto \frac{1}{V}$

Higher the pressure of the gas lower will be the volume occupied by the gas and vice versa.

Hence, statement C is not true.

With rise in temperature, effusion of gas molecule increase as kinetic energy of gas molecules increases in with increase in temperature.

Average kinetic energy is defined as the average of the kinetic energies of all the particles present in a system. It is determined by the equation:

$K=\frac{3RT}{2N_A}$

where,

K = Average kinetic energy

R = Gas constant

T = Temperature of the system

$N_A$ = Avogadro's number

$K\propto T$

Higher the temperature more will be kinetic energy of gas molecule more easily it will effuse.

Hence, statement D is not true.

From this we can conclude that out of five statements first 4 statements are not true which means that none of these statements are true.

3 0

4 years ago

Based on the following chart,which statement below is not true​

Based on the following chart,which statement below is not true