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zzz [600]
4 years ago
15

Where is the earths magnetic field and what causes it

Chemistry
1 answer:
Basile [38]4 years ago
8 0

Answer: On Earth, flowing of liquid metal in the outer core of the planet generates electric currents. The rotation of Earth on its axis causes these electric currents to form a magnetic field which extends around the planet. The magnetic field is extremely important to sustaining life on Earth.

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How many moles of Cl- ions are needed to completely combine with 0.25 moles of Mg+2 ions?
Mnenie [13.5K]
<span>The number of moles of Cl- ions needed to combine completely with 0.25 mole of Mg+2 ions is:
0.50.</span>
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Why would dry cleaners use non polar tetrachloroethylene,C2cl4 to get hamburger grease out of your shirt
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3 years ago
Chemist determined by measurements that 0.015 moles of nickel participated in a chemical reaction. Calculate the mass of nickel
san4es73 [151]

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5 0
4 years ago
A copper rod that has a mass of 200.0 g has an initial temperature of 20.0°C and is heated to 40.0°C. If 1,540 J of heat are nee
almond37 [142]

Answer:

Specific heat of copper = 0.385 J/(gi°C)

Explanation:

Given:

Mass of copper (m) = 200 g =

Initial temperature (T1) = 20°C

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Heat needed (Q) = 1,540 J

Find:

Specific heat of copper = ?

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⇒ Change in temperature (ΔT) = 20°C

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⇒ Specific heat of copper = 1,540 / [(200)(20)]

Specific heat of copper = 0.385 J/(gi°C)

5 0
4 years ago
Within one period, which group has the lowest first ionization energy?
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The answer would be A
4 0
3 years ago
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