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3 years ago

Choose the incorrect answer below concerning absolute zero.

2 answers:

8 0

Is equal to 0 k .This is because an absolute zero temperature is the temperature in which nothing can be cooled. The standard measurment for temperature is celcius which is already 0 but when we are converting 0 K to celcius we will gwt 273 celcius which is definitely not an absolute zero

Alisiya [41]3 years ago

7 0

Answer: Option (c) is the correct answer.

Explanation:

Absolute zero is defined as the lowest temperature at which motion of particles is the least and heat would be minimal.

Absolute temperature is represented as zero kelvin and it is also equivalent to $-273.15^{o}C$ .

For example, an hour old cup of a tea is actually colder than fire over a stove but hotter than an ice cube.

Therefore, we can conclude that the incorrect answer below concerning absolute zero is that it is equal to $0^{o}C$ .

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The nonmetals include which of the following groups? Use the periodic table to answer the question.

strojnjashka [21]

Answer:

halogen

Explanation:

Group VIIA/halogen/ is the only group in periodic table in which all the elements are nonmetals. This group contains F, Cl, Br, I, and At. <em>Halogen</em> meaning salt producer.

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3 years ago

A student has to create a model of a convex lens. Which property of a convex lens should the student include in the model?

Zepler [3.9K]

Answer:

A. The lens spreads light.

Explanation:

The convex lens will converge the light that passes through it. The direction of light will be bend to be closer to the middle point. This is the lens used for the eyeglass that treat people with hypermetropia. That is why the convex lens also called a converging lens or a plus lens. The strength of the convex lens depends on its focal length, index of the material used, and the radius of curvature.

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3 years ago

30 point. What is formed when a hydroxyl group is substituted for a hydrogen?

Andru [333]

Haloalkanes

Yeah it’s that

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3 years ago

What volume would 3.01•1023 molecules of oxygen gas occupy at STP?

Sliva [168]

First, find moles of oxygen gas: (3.01 x10^23 molec.)/(6.02 x10^23) =0.5mol O2

Second, multiply moles by the standard molar volume of a gas at STP:(0.5mol)(22.4L) = 11.2L O2

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4 years ago

Be sure to answer all parts. Dinitrogen difluoride, N2F2, is the only stable, simple inorganic molecule with an N=N bond. The co

ASHA 777 [7]

(a) The molecular shapes of cis and Trans forms of N2F2 are-

b) There is EN difference between N atom and F atom. Hence the molecule will have a bond dipole.

In Cis form two fluorine atoms are on the same side of N N bond. Hence, bond moment in N2F2 cis form) do not cancel each other. Thus the cis form is polar.

In the trans form two fluorine atoms are on the opposite side of N-N bond. Bond moment of NF cancels each other.

Thus: trans N2F2 is non polar molecule.

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4 years ago

Read 2 more answers