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lianna [129]
4 years ago
8

What factor determines that an oxygen atom can form two covalent bonds while a carbon atom can form four covalent bonds?

Biology
1 answer:
goblinko [34]4 years ago
3 0


The factor that determines this is the atomic structure of these two elements which determines how many electrons are found on the outer shell or energy level of these elements.

Ability  to form single, double or even multiple covalent bonds is directly dependent on the number of electrons  on the outer energy level.

The atomic structure of oxygen 2:8:6 with the outer shell having 6 electrons. Oxygen readily accepts and share 2 more electrons from another element  forming two covalent bonds.

Likewise carbon has an atomic structure of   2:4 with 4 electrons in the outer shell. It readily shares these electrons with other elements to form 4 covalent bonds with them.


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The average person blinks 25 times per minute how many times do they blink per year
Serggg [28]

If the average person blinks 25 times per minute you have to multiply and times it by 60(which is an hour) to equal {1,500} . Next times the number 1,500 by 24 because that is how many hours are in a day so that would equal {36,000} times a day. Now times 36,000 by 7 because that is how many days of the week so {252,000} is the answer per week.


Now to figure out how many times we blink in a year we will multiply

252,000 by 52 because there are 52 weeks in a year.


You get the answer 13,104,000


So you blink 13,104,000 times in a year.


Hope this helps

4 0
4 years ago
22. These three images represent the particle arrangement in ice, water, and steam.
pickupchik [31]

Answer:

A

Explanation: Solid's particles are compacted together so C would be ice, water is not is compact as ice is so water would be B, and lasty gas is well gas so it moves around freely which means the gases particles aren't as compact as water and ice, so gas would be A

5 0
3 years ago
9. Convection currents inside the Earth’s ______________ might drive plate motion.
mariarad [96]

Answer:

Convection currents in the earth's magma might drive plate motion .

Explanation:

Magma is the molten rock below the crust, in the mantle. Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents. These currents cause the movement of the plates inside the planet ..

3 0
3 years ago
Which element has properties most similar to those of chromium
Nataly_w [17]
Elements that have similar properties to chromium include molybdenum, tungsten, and seaborgium since they are all in the same family in group 6 of the periodic table. 
5 0
4 years ago
Read 2 more answers
Selection that acts over evolutionary time to preserve traits that increase an individual's ability to mate is known as ________
deff fn [24]

The selection that acts over evolutionary time to preserve traits that increase an individual's ability to mate is known as se_xual selection.

<h3>What is se_xual selection?</h3>

The expression 'se_xual selection' makes reference to the type of evolutionary constraint on the individual's ability to mate.

Se_xual selection is fundamental to increase the genetic variation and thus enhance adaptive chances.

Se_xual selection can be considered a special type of natural selection that acts at an individual level.

Learn more about se_xual selection here:

brainly.com/question/3603359

4 0
3 years ago
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