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3 years ago

You are given a model of various phases of the moon, as shown below. You can tell right away that it is inaccurate.

Chemistry

2 answers:

erma4kov [3.2K]3 years ago

8 0

Explanation:

First of all, depending on the order of which the phases in this picture are sequenced, C and D should be flipped. the 3/4 moon appears before the full moon.

Second of all, A, which is what's supposed to be a waxing crescent moon, the illuminated side should be a bit larger than what is shown. the illuminated area should be about 1/4 of the whole area of the moon circle.

Hope this helps.

a_sh-v [17]3 years ago

3 0

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EXPLAIN WHY THE AIR PRESSURE ON THE BEACH IN HAWAILIS

Airida [17]

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•the number of air molecules decreases
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This is why aircraft that fly at high altitudes must be pressurised. If the air pressure is too low, humans cannot take in oxygen quickly enough to meet their bodies’ needs.

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3 years ago

Solid sodium reacts with an iron (III) chloride solution to produce solid iron and sodium chloride solution. State the skeletal

AVprozaik [17]

Answer:

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3 years ago

Predict the geometry around the central atom in SO2- A) trigonal pyramidal B) tetrahedral C) octahedral D) trigonal planar E) tr

liubo4ka [24]

<u>Answer:</u> The correct answer is Option D.

<u>Explanation:</u>

To calculate the hybridization of $SO_2$ , we use the equation:

$\text{Number of electron pair}=\frac{1}{2}[V+N-C+A]$

where,

V = number of valence electrons present in central atom (S) = 6

N = number of monovalent atoms bonded to central atom = 0

C = charge of cation = 0

A = charge of anion = 0

Putting values in above equation, we get:

$\text{Number of electron pair}=\frac{1}{2}[6]=3$

The number of electron pair around the central metal atom are 3. This means that the hybridization will be $sp^2$ and the electronic geometry of the molecule will be trigonal planar.

Hence, the correct answer is Option D.

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4 years ago

How is the movement of particles in diffusion determined?

Andreas93 [3]

The particles move from an area of high concentration, to an area of low concentration, until the distribution of particles is equal

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4 years ago

A solar panel combines multiple photovoltaic cells. Which type of energy is used to power a solar panel? kinetic energy thermal

fredd [130]

<h2>Answer : Electromagnetic energy</h2><h3>Explanation :</h3>

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3 years ago