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PolarNik [594]
4 years ago
8

3. Where are the metals and nonmetals located on the periodic table? What are some

Chemistry
1 answer:
xxTIMURxx [149]4 years ago
3 0

Metals are located on the left of the periodic table, and nonmetals are located on the upper right.

Explanation: Metals: Lustrous (shiny)

Good conductors of heat and electricity.

High melting point.

High density (heavy for their size)

Malleable (can be hammered)

Ductile (can be drawn into wires)

Usually solid at room temperature (an exception is mercury)

Opaque as a thin sheet (can't see through metals)

Nonmetals: High ionization energies.

High electronegativities.

Poor thermal conductors.

Poor electrical conductors.

Brittle solids—not malleable or ductile.

Little or no metallic luster.

Gain electrons easily.

Dull, not metallic-shiny, although they may be colorful

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How many moles of nitrate are dissolved in water if 6.15 mole strontium nitrate dissolve?
pashok25 [27]

The number of moles of nitrate dissolved in water if 6.15 mole of strontium nitrate is :   12.3 moles

<u>Given data :</u>

Moles of strontium nitrate = 6.15 moles

<h3>Ionization of Strontium Nitrate </h3>

When strontium nitrate ( Sr(NO_{3} )_{2} ) is placed in water it will dissociates into its ions because strontium nitrate is an ionic compound.

Next step : Represent the ionization of strontium nitrate

Sr ( NO_{3} )_{2}  (aq) --- > Sr^{2+} (aq)  + 2NO_{3} ^{-} (aq)

From the Stoichiometry of the chemical reaction

I mole of strontium nitrate =  2 moles of Nitrate ions

6.15 mole of strontium nitrate = 2 * 6.15

                                                 = 12.3 moles of Nitrate

Hence we can conclude that The number of moles of nitrate dissolved in water if 6.15 mole of strontium nitrate is :   12.3 moles.

Learn more about Stoichiometry of chemical reaction : brainly.com/question/27058367

3 0
3 years ago
Which nonmetal has the highest density?​
wolverine [178]

Answer:

Osmium

Explanation:

3 0
3 years ago
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What is the difference between a substance and mixture ?
snow_lady [41]

Explanation:

Matter can be categorized into substances and mixtures.

Matter is anything that has mass and occupies spaces.

Substances are distinct matter with the following properties:

  • All parts are the same throughout i.e homogeneous
  • Their composition is definite
  • They cannot be easily separated or broken down into simpler substances by physical means
  • Separation by physical means is not easy
  • They have a unique set of physical properties.

Mixtures have the following properties:

  • Their composition is indefinite i.e they consist of two or more elements and/or compounds in any proportion by mass
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Learn more:

Mixtures brainly.com/question/1446244

#learnwithBrainly

6 0
4 years ago
What does the word interact <br><br>Lift<br><br>Fly<br><br>Discuss<br><br> Work with
enyata [817]

Answer:

The answer would be work with.

Explanation:

Because, if we know what the word interact means then we can look for a word similar to interact. hope this makes sense <3.

5 0
3 years ago
What is the correct noble gas configuration for sr?
Mariana [72]

Sr has an atomic number of 38 so we'll start there.

The closest noble gas is Kr with an atomic number of 36 so it'll look like this:

[Kr]5s^2.

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