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3 years ago

What are some other examples of joints in your body that work like a hinge?

Chemistry

2 answers:

Dmitrij [34]3 years ago

8 0

Knees and elbows are two of the most common ones.

stiks02 [169]3 years ago

6 0

It's known as the hinge joint. A primary example is your elbow, it can fold towards you, but if you try to bend it, it'll result in a break. Your knee is also a good example, especially since it's the largest hinge and pivot joint. Your fingers also have hinge joints as well.

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Molecules have ionization energies, just like atoms do. The ionization energy for molecular oxygen, for example, is 1314 kJ/mol.

taurus [48]

Answer:

91.1835 nm

Explanation:

Given that the ionization energy of the oxygen molecule = 1314 kJ/mol

It means that

1 mole of oxygen molecules can be ionized by the energy = 1314 kJ = 1314000 J

1 mole of molecules contains 6.022 × 10²³ atoms

So,

6.022 × 10²³ atoms of oxygen molecules can be ionized by the energy = 1314000 J

1 atom require $\frac{1314000}{6.022\times 10^{23}}\ J$ of energy

Energy = $2.18\times 10^{-18}\ J$

Also

$E=\frac {h\times c}{\lambda}$

Where,

h is Plank's constant having value $6.626\times 10^{-34}\ Js$

c is the speed of light having value $3\times 10^8\ m/s$

$\lambda$ is the wavelength

So,

$\lambda=\frac {h\times c}{E}$

$\lambda=\frac{6.626\times 10^{-34}\times 3\times 10^8}{2.18\times 10^{-18}}\ m$

$\lambda=91.1835\times 10^{-9}}\ m$

Also,

$1\ nm=10^{-9}}\ m$

So, wavelength = 91.1835 nm

6 0

3 years ago

How many moles are present in 100 grams of potassium?

spayn [35]

Answer:

39.0983.

Explanation:

4 0

3 years ago

If the only thing we are interested in studying is how the number of particles affects pressure, what variables do we have to be

andre [41]

I’m sorryvvvgccxxggcfg

6 0

3 years ago

Use the periodic table to match each of the following element symbols to its name, atomic mass, or atomic number. Match Term Def

Nataly [62]

The Match of element to its name, atomic mass is as below

element symbol atomic mass or atomic number

Antimony Sb 51

sulfur S 32

Silicon Si 14

<u><em>Explanation</em></u>

From periodic table Antimony is a chemical element with symbol Sb and atomic number 51.

Sulfur on the other hand is a chemical element with symbol S and has a atomic mass of 32

silicon is an element with symbol Si and atomic number 14

5 0

3 years ago

Read 2 more answers

The solid is not completely submerged in the water. Will this technique error increase, decrease, or have no effect on the repor

Vesna [10]

This technique error will increase the reported density of the solid.

Since the solid isn't completely submerged in the water, the volume will be reported as less than it actually is. Since volume is inversely proportional to density (if one goes up the other goes down), the density will increase and be reported as more than it actually is.

3 0

3 years ago