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Dmitry [639]
4 years ago
14

What change occurs every time elements form a compound?

Chemistry
1 answer:
Ber [7]4 years ago
3 0
<span>I'm pretty sure it because of chemical change. :) Hope this helps!</span>
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Does gas have its own density
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The identity does not matter because the variables of Boyle's law do not identify the gas.

Explanation:

The ideal gas law confirms that 22.4 L equals 1 mol.

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A chemical reaction in which an acid and a base react to produce salt and water is called a neutralization reaction. In the neut
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The energy in eV for light with a wavelength of 6250 angstroms is _. Note - there are 1.6 x 10-12 erg in 1 eV.
vivado [14]

Answer:

2 eV

Explanation:

The energy of a photon of light is given by the formula

E=\frac{hc}{\lambda}

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In this problem we have:

h=6.63\cdot 10^{-34} Js

c=3.0\cdot 10^8 m/s

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E=\frac{(6.63\cdot 10^{-34})(3.0\cdot 10^8)}{6250\cdot 10^{-10}}=3.2\cdot 10^{-19}J

We want to convert this energy into electronvolts: we know that the conversion factor is

1 eV = 1.6\cdot 10^{-19}J

Therefore,

E=\frac{3.2\cdot 10^{-19}}{1.6\cdot 10^{-19}}=2 eV

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3 years ago
Which of the following is generally true of female bones in relationship to male bones?
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What are the options
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prohojiy [21]

Answer:

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Explanation:

I hope it helps you

Pass your test fast okay

BYE!

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4 years ago
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