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3 years ago

What is caused by the tilt of Earth’s rotational axis?

Chemistry

2 answers:

barxatty [35]3 years ago

6 0

The answer would be option A which is the Earth’s Orbit

I am Lyosha [343]3 years ago

5 0

The correct answer is B. Earth’s Seasons

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Iron is ___ A, FE B,CU C,K D, CA

Fiesta28 [93]

Answer:

Ello mate ! the answer is super simple it's option "A" Fe

Explanation:

Iron is a chemical element with symbol "Fe" and atomic number 26. It is a type of metal, that belongs to the first transition series and group 8 of the periodic table. It is by mass the most common element on Earth, forming much of Earth's outer and inner core.

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4 years ago

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A thin-walled sphere rolls along the floor. What is the ratio of its translational kinetic energy to its rotational kinetic ener

ICE Princess25 [194]

Explanation:

The kinetic energy of translation

$E_1=\frac{1}{2}mv^2$

m= mass v= linear velocity

The kinetic energy of rotation

$E_2=\frac{1}{2}I\omega^2$

I= MOI of the thin walled sphere =kmR^2

where ω= v/R= angular velocity

$E_2=\frac{1}{2}kmR^2\frac{v}{R}^2$

Then

$\frac{E_1}{E_2} = \frac{0.5mv^2}{0.5kmR^2\frac{v}{R}^2 }$

=1/k

solid sphere: k=0.4; E1/E2 =1/0.4 = 2.5;

hollow sphere: k=2/3; E1/E2 = 1.5

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3 years ago

How is a mole related to concentration?

Aneli [31]

Answer:

Explanation:

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3 years ago

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What is electronic confriguration

nataly862011 [7]

Answer:

In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule in atomic or molecular orbitals. For example, the electron configuration of the neon atom is 1s² 2s² 2p⁶, using the notation explained below.

Explanation:

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3 years ago

How many equivalent lewis structures are necessary to describe the bonding in no2cl?

bogdanovich [222]

Answer:

The correct answer is "two".

Explanation:

The main bondings that has an effect in a Lewis structure in NO2Cl are the double bondings occurring between the Oxygen atoms and the Nitrogen atom. Since the NO2Cl compound has two oxygen atoms attached to the nitrogen atom, two equivalent lewis structures will be necessary to describe it. I attached an example of two equivalent Lewis structure corresponding to a NO2 molecule.

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3 years ago