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Mama L [17]
3 years ago
12

I WILL UPVOTE

Chemistry
1 answer:
Nana76 [90]3 years ago
8 0
<span>I`m not really sure of any, i`m just gonna guess. I believe it`s atoms have protons, neutrons, and electrons.</span>
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The atomic NUMBER tells which information below. Check all that apply.
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Answer:

1 the number of electrons

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A chemical bond is a strong attraction between two or more atoms. Can you identify the properties of different types of chemical
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1. Ionic bond.

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A cube of salt is crushed before being stirred into water.
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If you had 15 molecules of H2 and an unlimited supply of N2, how many
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Answer:

10 molecules of NH₃.

Explanation:

N₂ + 3H₂ --> 2NH₃

As the N₂ supply is unlimited, what we need to do to solve this problem is <u>convert molecules of H₂ into molecules of NH₃</u>. To do so we use the <em>stoichiometric coefficients</em> of the balanced reaction:

  • 15 molecules H₂ * \frac{2moleculesNH_3}{3moleculesH_2} = 10 molecules NH₃

10 NH₃ molecules could be prepared from 15 molecules of H₂ and unlimited N₂.  

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3 years ago
Prediction for Scandium (II) and Cl
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Answer:

(a) Eka-aluminum and gallium are two names of the same element as Eka-Aluminium has almost exactly the same properties as the actual properties of the gallium element. The properties: atomic mass, density, melting point, formula of chloride and formula of oxide are almost the same.

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