A covalent bond is formed when atoms share electrons true or flase

QUESTION POSTED AT 23/09/2019 - 04:18 AM

Answered by answersmine AT 23/09/2019 - 04:18 AM

The answer is trueA covalent bond is formed when atoms share electrons. 
Post your answer

Related questions

The pelagic zone includes those waters further from the land; it is generally cold and is below the benthic zone, the upper level of the ocean. TRUE FALSE

The correct answer here is False. The Benthic Zone lies below the Pelagic zone, which is not what it shows in this question.

ANSWERED AT 16/10/2019 - 10:41 PM


QUESTION POSTED AT 16/10/2019 - 10:41 PM

Lava that cools so quickly that ions do not have time to arrange into crystals will form igneous rocks with a _____.

Answer:

The answer is Glassy texture

Explanation:

ANSWERED AT 16/10/2019 - 10:36 PM


QUESTION POSTED AT 16/10/2019 - 10:36 PM

The Roman Coliseum and many other ancient examples of architecture are made of the metamorphic rock marble. True False

I believe it is true. :)                                              

ANSWERED AT 16/10/2019 - 10:14 PM


QUESTION POSTED AT 16/10/2019 - 10:14 PM

The most valuable native element mineral is gold. True False

Silver cost more then gold ppl just think gold is more better but silver has a higher cost but not in sum parts of america

ANSWERED AT 16/10/2019 - 10:12 PM


QUESTION POSTED AT 16/10/2019 - 10:12 PM

The products of contact metamorphism are often non-foliated. True False

I think answer is FALSE

ANSWERED AT 16/10/2019 - 10:12 PM


QUESTION POSTED AT 16/10/2019 - 10:12 PM

Which metamorphic rock is commonly formed by contact metamorphism and has non-foliated texture? gneiss schist hornfel

That would be your last option hornfel

ANSWERED AT 16/10/2019 - 10:08 PM


QUESTION POSTED AT 16/10/2019 - 10:08 PM

Sedimentary rocks can form at the earth's surface or within the earth. True False

True and false. It does form most often in a river, but not in the earths crust

ANSWERED AT 16/10/2019 - 10:03 PM


QUESTION POSTED AT 16/10/2019 - 10:03 PM

Sophia is observing slides under a microscope while adjusting its mirror so that a circle of light can be seen. Which type of microscope is she using? electron microscope compound light microscope scanning electron microscope

Answer:

The correct answer is the compound light microscope.

Explanation:

A compound light microscope comes with two or more lens and it has its own light source. There are objective lenses in a nose piece close to the specimen and ocular lenses in the binocular eyepieces.

A compound light microscope is comparatively small, so it’s easy to use and store, and it has its own light source.

Compound light microscopes reveal very fine details in slides because of their multiple lenses.

Thus, the correct answer is the compound light microscope.

ANSWERED AT 16/10/2019 - 09:56 PM


QUESTION POSTED AT 16/10/2019 - 09:56 PM

The number of atoms before a reaction is ________ the number of atoms after the reaction.

Matter cannot be created or destroyed. this means that the number of atoms before the reaction has to equal the number of atoms after the reaction.

ANSWERED AT 16/10/2019 - 09:31 PM


QUESTION POSTED AT 16/10/2019 - 09:31 PM

Which is the correct Lewis structure for carbon tetrabromide (CBr4), in which a central carbon atom is bound to four atoms of the group 7A element bromine?

When we make a rough chemical structure its like -
   br
    I
br-c-br
    I
   br
so as we can see that its having 4 bond pairs of c-br respectively so it qualifies for the hybridisation of sp3(4 bp+ 0 lp) 
thus it gives us a tetrahedral geometrical structure
............................................................................................
hope this helps:))

ANSWERED AT 16/10/2019 - 09:30 PM


QUESTION POSTED AT 16/10/2019 - 09:30 PM

Which characteristic do plants, people, and flatworms share? They all use cellular respiration to obtain energy. They all make their own food. They all ingest food.

Answer:
(They all use cellular respiration to obtain energy).

ANSWERED AT 16/10/2019 - 09:25 PM


QUESTION POSTED AT 16/10/2019 - 09:25 PM

Which of the following is not true concerning the layers of the Earth? a. The core is mostly composed of metals. b. The mantle has both solid and liquid regions. c. The layers of Earth are uniform in thickness. d. The lithosphere includes both the crust and upper, solid mantle.

Answer:

C. The layers of Earth are uniform in thickness.

Explanation:

The earth is made up of three layers, the crust, the mantle and the core. Each layer has different characteristics and temperatures, becoming warmer as it approaches the core.

The Earth is formed by three layers that are not uniform in thickness, composition, or characteristic. These layers are:

  • Earth's crust: Most superficial layer, relatively thin structure and very rocky.
  • Mantle: Located below the crust, it has solid properties.
  • Core: Earth's warmest inner layer. It has two parts:
  1. Outer core: formed by nickel and liquid iron.
  2. Inner core: Also formed of nickel, but with solid iron.

ANSWERED AT 16/10/2019 - 09:19 PM


QUESTION POSTED AT 16/10/2019 - 09:19 PM

Which of the following is a true statement about hypotheses? A. Even if hypotheses are not supported by data, they can still be valuable. B. Data collected during scientific investigations must always support hypotheses. C. It is not possible to test hypotheses through scientific investigations. D. If data does not agree with a hypothesis, the hypothesis should be changed to match the data.

Answer: B.  Data collected during scientific investigations must always support hypotheses.

Explanation:

Hypothesis is a statement which is based upon few evidences and facts which is used to assume the cause of a natural phenomena or anything else. The hypothesis can be rejected or accepted on the basis of the experimental process. That is if the results of the experimental process does not match with the hypothesis then the hypothesis can be rejected otherwise accepted.

The data obtain from the scientific investigation must prove the statement of the hypothesis. This will propose the fact that the assumption of the researcher is correct and forms the basis of new research and innovation.  

ANSWERED AT 16/10/2019 - 09:18 PM


QUESTION POSTED AT 16/10/2019 - 09:18 PM

Question 1(Multiple Choice Worth 2 points) In which of the following environments would you NOT expect to find fossils? Active volcanic islands An area with high concentration of sedimentary rocks The Grand Canyon A shallow ocean Question 2(Multiple Choice Worth 2 points) Some species are no longer living but we know they existed at one time. We know this because scientists have discovered fossil evidence we have other species to prove it we have written records we have observations Question 3(Multiple Choice Worth 2 points) Phenotype describes the genetic makeup of an individual the actual genes in an individual the DNA in an individual the appearance of an individual Question 4(Multiple Choice Worth 2 points) The process of fertilization joins sperm and egg y and x chromosomes two daughter cells two parent cells Question 5(Multiple Choice Worth 2 points) The ____ can be described as the basic unit of life. atom neutron cell nucleus

Question 1(Multiple Choice Worth 4 points)



The people of the Peloponnesian peninsula  

shared a common language and religion


were at constant war with each other


were united because of the flat, open countryside which made it easy to travel between different communities


were separated by rugged hills leaving them disconnected and not united




Question 2(Multiple Choice Worth 4 points)



Which of the following was the origin of today's marathons?


the announcement of the Athenian defeat at the Battle of Marathon


the announcement of the Athenian victory at the Battle of Marathon


the announcement of the defeat of the Persians at Mount Marathon


the announcement of the victory of the Persians at Mount Marathon




Question 3(Multiple Choice Worth 4 points)



How was the Greek navy able to defeat the Persian navy?  

Greece had superior generals.


Greece had smaller, quicker ships.


Persian sailors were mainly slaves.


The Greek gods had received enough human sacrifices.  



Question 4(Multiple Choice Worth 4 points)



After the Persian War, what did Sparta, Athens, and other Greek communities collect to ward off future external attacks?


slaves


corn and other grains


money


resources for building walls




Question 5(Multiple Choice Worth 4 points)



Why did Pericles' strategy fail?  

The citizens of Athens stayed within an overcrowded walled city.  

Sparta's navy was able to defeat the Athenian navy.


Sparta's army was able to defeat the Athenian army.


The Persians joined the Spartans.  



Question 6(Multiple Choice Worth 4 points)



How did Pericles die?


at the hands of the Spartan army


at the hands of the Spartan navy


at the hands of the Persian army


during the Athenian plague.  please help me


ANSWERED AT 16/10/2019 - 09:17 PM


QUESTION POSTED AT 16/10/2019 - 09:17 PM

Earth supports life forms numbering more than _____.

Earth supports 8.7 million different forms of life. Out of this, 6.5 million species inhabit the land and the rest 2.2 live in the oceans. This figure has recently been announced by the Census of the Marine life and is known as the global biodiversity of the earth. 

ANSWERED AT 16/10/2019 - 09:10 PM


QUESTION POSTED AT 16/10/2019 - 09:10 PM

American consumers have the lowest amount of waste per person in the world. True or False?

That's absolutely false. 

ANSWERED AT 16/10/2019 - 09:07 PM


QUESTION POSTED AT 16/10/2019 - 09:07 PM

If I have 10 electrons. How many protons are there?

If the atom is neutral (not an ion), it would have the same number of protons as electrons. Thus, 10 protons.

ANSWERED AT 16/10/2019 - 09:05 PM


QUESTION POSTED AT 16/10/2019 - 09:05 PM

Which best describes a cell that was formed as a result of meiosis?

A gamete is created as a result of meiosis. 

ANSWERED AT 16/10/2019 - 09:01 PM


QUESTION POSTED AT 16/10/2019 - 09:01 PM

Which form of energy is especially important for living things and why?

Im not sure if this was a mutiple choice, but i would say the sun or water. I'll explain both

Most living things need sunlight to grow like plants or farm crops and sun provides what it needs to grow and that dosent just benifit the plants it benifits us as well in order to stay healthy and fit you need vegetables and the sun helps provide that. The sun dosent just give you vegatables, In some places in order for cheese or some meat even it is a long process the meat or cheese goes through which involves sitting in the sun for hours 

Now, as far as water goes its pretty self explanitory water keep us alive but it keeps animals alive and well without animal what will people eat 

ANSWERED AT 16/10/2019 - 09:01 PM


QUESTION POSTED AT 16/10/2019 - 09:01 PM

Under which of the following conditions would a fossil most likely form

  The most important for an organism to fossilize is to buried rapidly. Higher chances of fossilization are in areas with high rate of sediment.

ANSWERED AT 16/10/2019 - 08:54 PM


QUESTION POSTED AT 16/10/2019 - 08:54 PM

If a cell does not contain membrane bound organelles, what else is most likely true about the cell

Do you have any answer choices?

ANSWERED AT 16/10/2019 - 08:40 PM


QUESTION POSTED AT 16/10/2019 - 08:40 PM

In plants and algae, _____ is the source of the electrons needed for photosynthesis.

Water.
The answer that goes in the blank is water

ANSWERED AT 16/10/2019 - 08:40 PM


QUESTION POSTED AT 16/10/2019 - 08:40 PM

The heart pumps blood through blood vessels to reach all areas of the body. together, the heart and blood vessels form a(n __________.

Organ system is the correct answer

ANSWERED AT 16/10/2019 - 08:35 PM


QUESTION POSTED AT 16/10/2019 - 08:35 PM

The two strands of dna that make up a double helix by covalent bonds

The DNA double helix is held together by two types of bonds, covalent and hydrogen. Covalent bonds occur within each linear strand and strongly bond the bases, sugars, and phosphate groups (both within each component and between components). Hydrogen bonds occur between the two strands and involve a base from one strand with a base from the second in complementary pairing. These hydrogen bonds are individually weak but collectively quite strong.

ANSWERED AT 16/10/2019 - 08:34 PM


QUESTION POSTED AT 16/10/2019 - 08:34 PM