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2 years ago

If an element has 3 valance electrons what row is it in?

Chemistry

1 answer:

klemol [59]2 years ago

8 0

It can be any row

Explanation:

An element with a valence electrons of 3 can be in any row on the periodic table.

The rows are the horizontal arrangement of elements on the periodic table.

Elements on the same row have the same energy level.

The periodic table rows are called periods.
It is only in the groups that we can find such element.
Group 3 elements have 3 valence electrons.
Since this group cuts through all the rows, therefore, elements with 3 valence electrons can be found in any row.

learn more:

Metalloids brainly.com/question/3023499

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1. El metodo cientifico pretende sistematizar el proceso de obtención del conocimiento cientifico, evitar la subjetividad en los

____ [38]

Answer:

La afirmación es verdadera.

Explanation:

El método científico es un método de investigación usado principalmente en la producción de conocimiento en las ciencias y se define como un procedimiento para tratar un conjunto de problemas. En ciencia, el método científico es la estrategia para la investigación y la exploración de lo desconocido.

Por lo que el método científico es el procedimiento mediante el cual es posible alcanzar un conocimiento objetivo de la realidad, tratando de dar respuesta a las interrogantes acerca del orden de la naturaleza.

Para ser científico, un método de investigación debe basarse en la empírica y en la medición, sujeto a los principios específicos de las pruebas de razonamiento.

El método científico se basa en la reproducibilidad, es decir, la capacidad de repetir un determinado experimento, en cualquier lugar y por cualquier persona, y la refutabilidad, es decir toda proposición científica tiene que ser susceptible de ser falsada o refutada.

Entonces la afirmación es verdadera.

6 0

2 years ago

Name the following alkane:

vladimir1956 [14]

The names of the alkanes are 2,2- dimethylbutane, 2,4- dimethylhexane, 2,2,3,3- tetramethylbutane and 4- ethyl, 3,6- dimethyl heptane.

Alkanes are saturated hydrocarbon in the organic chemistry. These are organic compounds that consists of single bonded carbon and hydrogen atoms. The common formula for writing an alkane is given by CₙH₂ₙ₊₂.

Alkanes are further divided into three more types which are:

1. Chain alkanes

2. Cycloalkanes

3. Branched alkanes

Hydrogenation method is used for preparation of alkanes from alkene and alkyne.

The names of the given compounds are:

Part A:

2,2- dimethyl butane

Part B:

2,4- dimethyl hexane

Part C:

2,2,3,3- tetramethyl butane

Part D:

4- ethyl, 3,6- dimethyl heptane

Learn more about alkanes from the link given below.

brainly.com/question/16837399

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4 0

6 months ago

Ammonia and hydrogen fluoride both have unusually high boiling points due to

nexus9112 [7]

Answer:

C. hydrogen bonding

Explanation:

Ammonia and hydrogen fluoride are both able to exhibit hydrogen bonding due to containing nitrogen (in ammonia) and fluoride (obviously in hydrogen fluoride). Remember the unique qualities of NOF. :)

5 0

2 years ago

Hydrogen is prepared commercially by the reaction of methane and water vapor at elevated temperatures. CH₄(????) + H₂O(????) ⇌ 3

sammy [17]

Answer:

6.2846

Explanation:

Given that:-

Concentrations at equilibrium :-

$[CH_4]=0.126\ M$

$[H_2O]= 0.242\ M$

$[CO]= 0.126\ M$

$[H_2]= 1.15\ M$

The equilibrium reaction is:-

$CH_4+H_2O\rightleftharpoons 3H_2+CO$

The expression for equilibrium constant is:

$K_{c}=\frac {\left [ H_2 \right ]^3\left [ CO \right ]}{\left [ CH_4 \right ]\left [ H_2O \right ]}$

Applying the values as:-

$K_c=\frac{1.15^3\times 0.126}{0.126\times 0.242}=6.2846$

The equilibrium constant for the reaction is:- 6.2846

5 0

2 years ago

a substance did not change its chemical nature in a reaction. which most likely describes the reaction

Mkey [24]

This substance most likely is an inert. It is a substance that is not chemically reactive. It does not change its chemical nature in a reaction. It does not easily react with other chemicals. Most of the group 8 gases in the periodic table are classified as inert, due to their having full outer electron shells.

5 0

2 years ago

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