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3 years ago

How many valence electrons does carbon have? Is this atom satisfied? Explain.

Biology

2 answers:

Tems11 [23]3 years ago

4 0

Answer:

Carbon has 4 valence electrons. It is not satisfied. To be satisfied, it needs to covalently bond with 4 electrons to achieve octet (8 valence electrons).

vitfil [10]3 years ago

3 0

Answer:

4 valence electrons

Explanation:

Because of the relative stability, these atoms often form covalent bonds rather than ionic bonds that need a charge. One example is Carbon. It has 4 valence electrons, so it can make a 4+ or a 4- charge.

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Who provided x-ray diffraction photographs of purified dna fibers that suggested a helical structure with a consistent diameter

SSSSS [86.1K]

Answer:

Watson & Crick

Explanation:

They received the Nobel prize for science for their discovery in 1962. Their capacity to be able to represent DNA double helix in 3D was made possible by advancements in the model building- a science that allows three-dimensional structures to be modeled based upon known molecular distances and bond angles.

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3 years ago

Some complex multicellular organisms are organized at four levels to increase efficiency. What is the correct order of organizat

AysviL [449]

The answer is letter D. The simplest to most complex life organization is: cell, tissue, organ, organ system. Multicellular organisms are composed of the building blocks of life called cells. When cells are grouped together they form tissues that perform specific functions in an organism. Further in the line, when tissues are grouped together they form organs; organs are responsible in performing bodily functions in organisms. The heart, lungs, and brain are the most important organs in the human body. When organs work in an interconnected way they are called organ systems.

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3 years ago

Generally speaking, fossils can form when organisms Choose one: A. die and get buried during sedimentation. B. are buried by a l

svet-max [94.6K]

Answer: The question is not well stated.

It should be choose the false statement from the options.

The correct answer is option C.

Fossils are not formed when organisms are preserved in recrystallized limestone called marble.

Explanation:

Fossils refers to remains of ancients organisms either plants or animals that have been preserved using a natural means. Fossils can be formed when of plants and animals and get buried during sedimentation or are buried by a lava flow or travel over gravel and leave imprints.

Examples of fossils include bone,shells, wood, coal,oil, DNA segment, objects preserved in Amber e.t.c.

They are use for historic studies, decorations , tourist attractions e.t.c.

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3 years ago

BRAINLIEST! Define procrastination and list 4-5 ways that you combat procrastination.

julsineya [31]

Explanation:

The action of delaying or postponing something is called procrastination.

4-5 ways that you combat procrastination are listed below :

Getting rid of distractions
Reward yourself
Schedule a time for doing task
Don't be fearful for doing badly at task
Commit to the task

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3 years ago

An iris plant blooms when days are longer. This is an example of which type of plant response? gravitropism photoperiodism thigm

Tema [17]

This is an example of;

B. Photoperiodism

Photoperiodism is the response of an organism to seasonal changes in day length.

They are classified under three groups according to the photoperiods;

1. Short-day plants

2. Long-day plants

3. Day-neutral plants.

6 0

3 years ago

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