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sertanlavr [38]
2 years ago
10

Pick one answer do not put any links please

Chemistry
1 answer:
skelet666 [1.2K]2 years ago
3 0
The answer is D! This adaptation helps the eel fend off potential threats! Hope this helps, have a great day!
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Predict the bond polarity of the following bonds:
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CH is nonpolar
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SCl is polar
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Remember that polarity results from unequal electron sharing
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3 years ago
For each property listed, identify the type of element it describes.
Juliette [100K]

Answer:

1.Very good electrical conductivity :<u> Metals</u> (Decreacing order of conductivity)

  • <em>Silver > Copper > Gold > aluminium</em>

2. Amphoteric <u>: Metal elements</u>

  • <em>Beryllium , Aluminium , Zinc </em>,

3.Gaseous at room temperature: mostly <u>Nobel gases elements</u> and some non - metal elements.

  • <em>Helium ,neon , argon , krypton , fluorine , Oxygen , nitrogen</em>

4.Solid at room temperature:<u> Mostly Metals</u> (few non-metals, metalloid elements)

  • <em>Metals (Sodium  , potassium , calcium , gold are solid)</em>

<em>Non- metals(Carbon ,Boron )</em>

<em>Metalloids(antimony)</em>

<em>5.</em> Brittle <em>: </em><u>non - metals </u>(can't be rolled into wires)

<em>Hydrogen , carbon , sulfur , phosphorus</em><u> </u>

Explanation:

6 0
3 years ago
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What's the chemistry definition of density
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Density<span> is </span>defined<span> as the ratio between mass and volume or mass per unit volume. 
Source is google

</span>
5 0
3 years ago
What are the standard ways to make a solution of known concentration? (select all that apply.)?
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1- Molar solutions: based on number of moles of chemical in 1 litre of solution

2- Weight % solution:  the weight of chemical divided by the total weight of the solution (chemical + water) and multiplied by 100.

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Explanation:

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