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ANEK [815]
3 years ago
9

The undersea mountain chain where magma rises from and where new ocean floor is produced is called?

Chemistry
1 answer:
liberstina [14]3 years ago
5 0

Answer:

mid-ocean ridges

Explanation:

Seafloor spreading occurs along mid-ocean ridges—large mountain ranges rising from the ocean floor.

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7 0
3 years ago
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1. Where do convection currents happen? crust inner core core mantle <br> pls help
Vikentia [17]

Answer:

Mantle

Explanation:

Convection currents in the Earth occur in the mantle. The core of the Earth is extremely hot, and material in the mantle close to the core is heated...

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5 0
2 years ago
Two hydrogen atoms collide in a head on collision and end up with zero kinetic energy. Each then emits a photon of 121.6 nm (n=2
Zinaida [17]

Explanation:

Expression for the kinetic energy is as follows.

         K.E = \frac{1}{2}mv^{2}

Now, total kinetic energy will be as follows.

    K.E = 2 \times \frac{1}{2}mv^{2} = m \times v^{2}

Since, this energy converts into electromagnetic radiation of wavelength 121.6 nm.

Relation between energy and photon is as follows.

   Energy of photon = \frac{hc}{\lambda}

                                = \frac{6.626 \times 10^{-34} \times 3 \times 10^{8}}{121.6 \times 10^{-9}}

                                 = 1.63 \times 10^{-18} J

    m \times v^{2} = 1.63 \times 10^{-18}

          v = \sqrt{\frac{1.63 \times 10^{-18}}{1.67 \times 10^{-27}}

             = 3.12 \times 10^{4} m/s

Thus, we can conclude that atoms were moving at a speed of 3.12 \times 10^{4} m/s before the collision.

8 0
3 years ago
Elements in the first column of the periodic table belong to the alkali family. Name the alkali metals.
Makovka662 [10]
Lithium, sodium, potassium, rubidium, cesium, and francium
6 0
2 years ago
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masya89 [10]

Answer:

A supersaturated solution

6 0
3 years ago
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