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Natasha_Volkova [10]
3 years ago
8

I will brainly And 5 star rate!!

Chemistry
2 answers:
ElenaW [278]3 years ago
8 0
One or more substances are converted to a different substance. an example could be ( iron + oxygen = rust
xeze [42]3 years ago
3 0
Most of them explode is the answer to that question
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A molecule has an empirical formula of ch, and its molar mass is known to be 26 g/mol. What is its molecular formula?.
Sonbull [250]

A molecule has an empirical formula of ch, and its molar mass is known to be 26 g/mol and the  molecular formula is C₂H₂ ethyne

Molecular formula of compound is (CH)n and the given molar mass is 26g/mol

Molar mass of (CH)n, C=12=n(12+1)=13n

So 13n and n=2

=13×2=26 and given molar mass is also 26g/mol

So here two carbon and two hydrogen so molecular formula is C₂H₂ and name is ethyne

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7 0
2 years ago
How do elements of the periodic table affect economy
Bess [88]
They don’t, what you even on about
7 0
2 years ago
How are the inner core and outer core diffrent?How are they similar
Sholpan [36]
They are totally different the Inner core is solid and hotter is made of iron, the outer core is liquid the and is made of iron and nickel
6 0
3 years ago
When an electron passes through the magnetic field of a horseshoe magnet, the electron's?
blsea [12.9K]

When an electron passes through the magnetic field of a horseshoe magnet, the electron's direction is changed.

Path of an electron in a magnetic field

The force (F) on wire of length L carrying a current I in a magnetic field of strength B is given by the equation:

F = BIL

But Q = It and since Q = e for an electron and v = L/t you can show that :

Magnetic force on an electron = BIL = B[e/t][vt] = Bev where v is the electron velocity

In a magnetic field the force is always at right angles to the motion of the electron (Fleming's left hand rule) and so the resulting path of the electron is circular.

Therefore :

Magnetic force = Bev = mv2/r = centripetal force

v = [Ber]/m

and so you can see from these equations that as the electron slows down the radius of its orbit decreases.

If the electron enters the field at an angle to the field direction the resulting path of the electron (or indeed any charged particle) will be helical. Such motion occurs above the poles of the Earth where charges particles from the Sun spiral through the Earth's field to produce the aurorae.

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4 0
2 years ago
PLEASE HELPPPPP!!!!!!!
marin [14]
Boiling water is a physical change, because it is changing state of matter, there is a controllable temperature change, and you can change it back.

Frying the egg white is a chemical change, because there is a change of matter, controllable temperature change, but you CAN'T change it back.
8 0
3 years ago
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