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Fittoniya [83]
3 years ago
5

PLEASEE HELP ME! PLS PLS I NEED IT NOW PLS!

Chemistry
1 answer:
Vladimir [108]3 years ago
6 0

iron Bars form a solenoid when wrapped in a coil by a current carrying copper conducting wire .

copper coils generate a magnetic field when a current is passed through the coil . according to the helmholtz law.

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In the formula for water H2O what is a subscript 2 indicate?
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There are two atoms of hydrogen molecules.

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An element's atomic number is the _____?
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Manganese forms several oxides when combined with oxygen. One of the oxides (Oxide 1) contains 63.2% of Mn and another oxide (Ox
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Explanation:

Defining law of definite proportions, it states that when two elements form more than one compound, the ratios of the masses of the second element which combine with a fixed mass of the first element will always be ratios of small whole numbers.

A. One of the oxides (Oxide 1) contains 63.2% of Mn.

Mass of the oxide = 100g

Mass of Mn = 63.2 g

Mass of O = 100 - 63.2

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Ratio of Mn to O = 63.2/36.8

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Another oxide (Oxide 2) contains 77.5% Mn.

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Ratio of Mn to O = 77.5/22.5

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B.

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