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Ainat [17]
2 years ago
10

in the diagram shown below, the blue light ray represents a ray of light incident on a boundary between media. the diagram repre

sents
Chemistry
1 answer:
Zigmanuir [339]2 years ago
6 0

Answer:

I can't see the diagram please

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Ordena de mayor a menor según sus radios iónicos a los siguientes iones:
I am Lyosha [343]

Answer:

The correct order of the elements, taking into account their ionic radius from highest to lowest, is:

<em>a) Cl⁻¹ > F⁻¹ > Na⁺¹ > Mg⁺²</em>

<em>b) S⁻² > O⁻² > Li⁺¹ > Be⁺²</em>

<em>c) S⁻² > Cl⁻¹ > K⁺¹ > Na⁺¹</em>

Explanation:

In ions the ionic radius is determined by the amount of electrons an element gains or loses to become an ion.  The more negative an ion is, the greater its ionic radius.

As a rule, anions (negative charge) have a larger ionic radius than cations (positive charge), because the loss of electrons means a contraction of the ionic radius, while the gain of electrons means a greater radius.

To determine which ionic radius is greater in anions or cations with the same charge, it must be considered that in the periodic table the ionic radius increases from top to bottom and from right to left.

Learn more:

Ionic radius example brainly.com/question/2279609

3 0
3 years ago
How many particles can be stored in a 4.0 L container at room temperature (23 C) and standard atmospheric pressure
velikii [3]

Answer: 9.91×10²³ particles

Explanation:

To find the amount of particles, you will need to use the Ideal Gas Law with what we are given.

Ideal Gas Law: PV=nRT

After we find moles, we can use Avogadro's number to convert to particles.

n=\frac{PV}{RT}

P=101.3kPa=1.00 atm

V=4.0 L

T=23°C+273.15=296.15 K

R=0.08206 Latm/Kmol

n=\frac{(1.00 atm)(4.0 L)}{(0.08206Latm/Kmol)(296.15K)}

n=0.164595 mol

Now that we have moles, we can convert to particles.

0.164595mol*\frac{6.022*10^2^3 particles}{mol} =9.91*10^2^2 particles

5 0
3 years ago
an atom contains 32 protons and has a mass number of approximately 72 amu what is the chemical symbol for the atom
olga nikolaevna [1]

I belive it would be Hf (hafanium).

5 0
3 years ago
Read 2 more answers
Franco was told that he had mycarditis. He went home and researched the disease, and he determined that he had
Reil [10]

Answer:

Myocarditis = C) Inflammation of the muscular wall of the heart.

Explanation:

Myocarditis is a condition usually caused by a virus.

It causes inflammation within the heart, generally along the muscular wall and within the middle layers.

It's definitely not a great condition. It's possible it could weaken his heart's ability to pump properly, which in turn could effect organs and cause organ failure. It'd lead to intense bouts of pain constantly, swelling, problems breathing, or even heart failure.

Feel bad for Franco.

6 0
3 years ago
Large objects that form dense gravity wells in space A. Galaxies B. Star C. Nebulae D. Black holes.​
BigorU [14]

Answer:

D. Black Holes

Explanation:

Black holes are large objects that form dense gravity wells in space. Their gravitational pull is so strong that even light cannot escape it. 

5 0
3 years ago
Read 2 more answers
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