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4vir4ik [10]
3 years ago
7

The majority of the elements in the Periodic Table are

Chemistry
2 answers:
Lena [83]3 years ago
3 0
Most elements are metals. A.
Nataly [62]3 years ago
3 0

Hello!

<u><em>Answer: A. Metals.</em></u>

Explanation:

↓↓↓↓↓↓↓↓↓

Physical properties of metals:

↓↓↓↓↓

Malleable:

  1. can be shaped
  2. does not break easily

Ductile:

  1. Can be pulled into long, thin shapes.

Thermal conductivity:

  1. Allows heat to pass easily

Electrical conductivity:

  1. Allows the easy flow of electric current.

The majority of the elements in the periodic table are "metals".

Hope this helps!

Thank you for posting your question at here on brainly.

Have a great day!

-Charlie

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How many grams are there in 3.3 x 1023 particles of N2I6?
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Answer: With the exception of hydrogen, all atoms have three main parts. The parts of an atom are protons, electrons, and neutrons. A proton is positively charged and is located in the center or nucleus of the atom. Electrons are negatively charged and are located in rings or orbits spinning around the nucleus.

Explanation:

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3 years ago
A container with 3.0 moles of gas has a volume of 60.0L with a temperature at 400.K what is the pressure
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Explanation: solution attached.

Use Ideal gas law

PV= nRT

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P= nRT/V R= 0.08205 L.atm/mol.K

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If you observe with the microscope that a cell contains chloroplasts can you conclude that this is a plant cell?
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Write a balanced equation for the complete oxidation reaction that occurs when ethane burns in air
damaskus [11]
<h3>Balanced equation : 2C₂H₆ (g) + 7O₂ (g) ⟶ 4CO₂ (g) + 6H₂O (ℓ)</h3><h3>Further explanation</h3>

Alkanes are saturated hydrocarbons that have single bonds in chains

General formula for alkanes :

\tt \large{\bold{C_nH_{2n+2}}

Hydrocarbon combustion reactions (specifically alkanes)

\large {\box {\bold{C_nH _ (_2_n _ + _ 2_) + \dfrac {3n + 1} {2} O_2 \Rightarrow nCO_2 + (n + 1) H_2O}}}

So that the burning of ethane with air (oxygen):

\tt C_2H_6+\dfrac{7}{2}O_2\rightarrow 2CO_2+3H_2O

2C₂H₆ (g) + 7O₂ (g) ⟶ 4CO₂ (g) + 6H₂O (ℓ)

or we can use mathematical equations to solve equilibrium chemical equations by giving the coefficients for each compound involved in the reaction

C₂H₆ (g) + aO₂ (g) ⟶ bCO₂ (g) + cH₂O (ℓ)

C : left 2, right b ⇒ b=2

H: left 6, right 2c⇒ 2c=6⇒ c= 3

O : left 2a, right 2b+c⇒ 2a=2b+c⇒2a=2.2+3⇒2a=7⇒a=7/2

6 0
3 years ago
Which six elements are generally considered metalloids
chubhunter [2.5K]

Answer:

boron, silicon, germanium, arsenic, antimony, and tellurium

4 0
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