Which of these is an element? Carbon Carbon dioxide Air Water
2 answers:
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Carbons starting from the left end:
- sp²
- sp²
- sp²
- sp
- sp
Refer to the sketch attached.
<h3>Explanation</h3>The hybridization of a carbon atom depends on the number of electron domains that it has.
Each chemical bond counts as one single electron domain. This is the case for all chemical bonds: single, double, or triple. Each lone pair also counts as one electron domain. However, lone pairs are seldom seen on carbon atoms.
Each carbon atom has four valence electrons. It can form up to four chemical bonds. As a result, a carbon atom can have up to four electron domains. It has a minimum of two electron domains, with either two double bonds or one single bond and one triple bond.
- A carbon atom with four electron domains is sp³ hybridized;
- A carbon atom with three electron domains is sp² hybridized;
- A carbon atom with two electron domains is sp hybridized.
Starting from the left end (H₂C=CH-) of the molecule:
- The first carbon has three electron domains: two C-H single bonds and one C=C double bond; It is sp² hybridized.
- The second carbon has three electron domains: one C-H single bond, one C-C single bond, and one C=C double bond; it is sp² hybridized.
- The third carbon has three electron domains: two C-C single bonds and one C=O double bond; it is sp² hybridized.
- The fourth carbon has two electron domains: one C-C single bond and one C≡C triple bond; it is sp hybridized.
- The fifth carbon has two electron domains: one C-H single bond and one C≡C triple bond; it is sp hybridized.
when column B is like the attached pic: (missing in your question)
so the matches will be like that:
1- Qualitative :
as Qualitative is a general or nonspecific observation, they also don't require
measurements and even can't be measured, that is because of the reality is
being approximated only. It describes qualities and uses opinion
2- Hypothesis :
as a hypothesis is an educated guess quantitative, and it is a prediction stated
in " If and then " form. a hypothesis to be valid need a research such as:
-Encyclopedia & state and local research facilities & scientific journals.
3- Direct relationship:
as a Direct relationship is when two variable change in the same direction,
and one remaining larger than the other by the same factory.
- this is a type of a relationship in which there is a change with one variable, and corresponding with the change in the other. and because this corresponding change with the other variable in the same direction so it refers to a positive relationship.
4- Quantitative:
as Quantitative is a measured observation, It's an information or data based
on quantities obtained. And using numbers, equipment and standard units.
5- Control :
as control is standard, reference data or experiment qualitatively. this is what
you compare your experimental results to. This is for comparing results, it
used as a standard for comparison and use baseline measurements to use in
the comparing.
6- Theory :
as Theory is a presently accepted explanation of how something happened.
Scientifically acceptable general principles to explain phenomena. It the
general or abstract principles of the science. for example the wave theory of
light.
7- Law :
as a law is a statement that explains what something does under the same
conditions. when we take about law in science, it is a general rule to explain
the observations in the form of a mathematical statement. Scientific law may
be stated in words or expressed as a mathematical equations.
8- Best fit curve:
as best fit curve is a curve drawn to average the data's deviations direct
relationship. It is a process of constructing a curve that has best fit to a
series of data points.
so the matches will be like that:
1- Qualitative :
as Qualitative is a general or nonspecific observation, they also don't require
measurements and even can't be measured, that is because of the reality is
being approximated only. It describes qualities and uses opinion
2- Hypothesis :
as a hypothesis is an educated guess quantitative, and it is a prediction stated
in " If and then " form. a hypothesis to be valid need a research such as:
-Encyclopedia & state and local research facilities & scientific journals.
3- Direct relationship:
as a Direct relationship is when two variable change in the same direction,
and one remaining larger than the other by the same factory.
- this is a type of a relationship in which there is a change with one variable, and corresponding with the change in the other. and because this corresponding change with the other variable in the same direction so it refers to a positive relationship.
4- Quantitative:
as Quantitative is a measured observation, It's an information or data based
on quantities obtained. And using numbers, equipment and standard units.
5- Control :
as control is standard, reference data or experiment qualitatively. this is what
you compare your experimental results to. This is for comparing results, it
used as a standard for comparison and use baseline measurements to use in
the comparing.
6- Theory :
as Theory is a presently accepted explanation of how something happened.
Scientifically acceptable general principles to explain phenomena. It the
general or abstract principles of the science. for example the wave theory of
light.
7- Law :
as a law is a statement that explains what something does under the same
conditions. when we take about law in science, it is a general rule to explain
the observations in the form of a mathematical statement. Scientific law may
be stated in words or expressed as a mathematical equations.
8- Best fit curve:
as best fit curve is a curve drawn to average the data's deviations direct
relationship. It is a process of constructing a curve that has best fit to a
series of data points.