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Neko [114]
3 years ago
10

You need 2.5 moles of aluminum for an experiment. How many grams of aluminum is this?

Chemistry
1 answer:
IgorLugansk [536]3 years ago
8 0

Answer:

26.98 g

formula= 2.5*avargados number

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Which of these statements best answers the question: What is art?
Anna11 [10]

Answer:

You didn't provide any statements. If it is an option, art is a form of expression. Something created from imagination that expresses the thoughts and emotions of the artist.

8 0
3 years ago
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
A filament for a light bulb needs to conduct electricity. Which of the elements listed below might be useful as a light bulb fil
horrorfan [7]

Answer:

A. tungsten

Explanation:

Tungsten is a material which high melting point ie. does not melt easily incase of high temperature

8 0
3 years ago
Read 2 more answers
Mr. Anthony has set up the lab many times for the experiment with acids and bases using litmus paper. In fact, he says he can pr
DiKsa [7]

Answer :script memory

Explanation:Script memory refers

to a particular theoretical

memory for the typical activities

that take place

during regular events.

He already knew that Blue litmus would turn red in an acid and red litmus turns blue in a base

5 0
3 years ago
What might a physicit choose to study?
AlekseyPX
Thermodynamics, Nuclear Physics, Quantum Physics, Astronomy and Astrophysics
7 0
3 years ago
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