Formaldehyde is an organic compound. Each molecule includes two hydrogen (H) atoms, one oxygen (O) atom, and one carbon (C) atom. Below are the dot structures for each of these elements.

At left, a purple circle labeled H surrounded by two concentric circles, the inner with nothing on it, the outer with 1 small green spheres. In center, a purple circle labeled O surrounded by two concentric circles, the inner with 2 small green spheres, the outer with 6 small green spheres. At right, a purple circle labeled C surrounded by two concentric circles, the inner with 2 small green spheres, the outer with 4 small green spheres.
Which diagram shows how the covalent bonds most likely form in a formaldehyde molecule?

C connected above and below to H's by 1 line each. C also connected by two lines to O, which has 2 dots each above and below.

C connected above and below to H's by 1 line each. C also connected by three lines to O, which has 2 dots each above and below.

O connected above and below to H's by 1 line each. O also connected by two lines to C, which has 2 dots above.

O connected above and below to H's by 1 line each. O also connected by two lines to C, which has 2 dots each above and below.

Answers

Answer 1

Answer- H

                |     ..

               C = O

                |     ..

               H

Explanation: Correct on Edg 2020/2021.

Answer 2

Answer:

A.

Explanation:


Related Questions

Jessica and Taylor are playing in a seesaw. Taylor is suspended in the air and is unable to move her seat down. Explain why Taylor cannot swing back down.

Jessica is standing on her seat causing Taylor to be suspended in the air.
The force pushing down is less than the force pushing up on Taylor's seat.
The weight of Jessica is more than the weight of Taylor.
Jessica and Taylor are equal of weight.

Answers

Answer:

The force pushing down is less than the force pushing up on Taylor's seat. Jessica is standing on her seat causing Taylor to be suspended in the air.

Answer:

B)

Explanation:

hope this helps you!  :)

what is the kreb cycle?​

Answers

Answer:

The citric acid cycle – also known as the TCA cycle or the Krebs cycle – is a series of chemical reactions used by all aerobic organisms to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins.

Answer and Explanation:

I believe the Krebs cycle is the pathway of oxidation, glucose, fats, and amino acids..

I could be wrong..

examples of mixed fertilizers ​

Answers

Mixed fertilizer in which the sum of the guaranteed analysis of total nitrogen (N), available phosphoric acid (P2O5), and soluble potash (K2O) totals less than twenty percent. Some examples of single fertilizers are: urea, ammonium sulphate, super sulphate (SP36), TSP, KCL.

what three phases of the cell cycle are considered interphase

Answers

Answer:

The cell cycle has three phases that must occur before mitosis, or cell division, happens. These three phases are collectively known as interphase. They are G1, S, and G2. The G stands for gap and the S stands for synthesis.

Explanation:

The three phases of the cell cycle that are considered interphase include G1, S phase and G2.

The cell cycle can be divided into the interphase and mitotic (M) phases.

The interphase can in turn be divided into a Growth G1 phase, synthesis (S) phase and Growth G2 phase.

The synthesis of the genetic material (DNA) occurs in the S phase, whereas in G1 and G2 the cell synthesizes all materials required to enter into cell division.

In conclusion, the three phases of the cell cycle that are considered interphase include G1, S phase and G2.

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1. The diagram below represents part of Earth's latitude-longitude system. 2 points
What is the latitude and longitude of point L?*
45°
30°
15° 0°
15° 30° 45°
30°
N
20°
10°

LI
10°
20°
30°
O (A) 5º E 30°N
(B) 5° N 30°E
(C) 5° W 30° S
O (D) 5° S 30°W

Answers

Answer:

I am not sure but the answer must be C

a radioactive element has a half-life of 3,000 years. if a sample of this element begins with a mass of 60 grams, how long would you have to wait for the mass to decrease to 15 grams

Answers

Answer:

N = 60 g

Half life : N/2 = 3000

N/4 = 15 g

Comment on the folding of protein in vaccum​

Answers

Answer:

Protein folding is a process by which a polypeptide chain folds to become a biologically active protein in its native 3D structure. ... The amino acids in the chain eventually interact with each other to form a well-defined, folded protein. The amino acid sequence of a protein determines its 3D structure.

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It is the four minaret tower. The city of Hyderabad is designed around it, and is often referred
as the 'Arc of Triumph of East.____________​

Answers

Answer:

it is Charminar..... i guess!!!

Explanation:

Which crop leaves soil with the lowest levels of nitrogen?

Answers

Answer:

cotton

Explanation:

Cotton crop leaves soil with the lowest levels of nitrogen.

What is a nitrogen?

Nitrogen is the chemical element with the symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System.

Nitrogen is important to the chemical industry. It is used to make fertilizers, nitric acid, nylon, dyes and explosives. To make these products, nitrogen must first be reacted with hydrogen to produce ammonia. This is done by the Haber process.

Nitrogen is important to all living things, including us. It plays a key role in plant growth: too little nitrogen and plants cannot thrive, leading to low crop yields; but too much nitrogen can be toxic to plants [1]. Nitrogen is necessary for our food supply, but excess nitrogen can harm the environment.

Learn more about nitrogen:

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You tell a story to a second person who tells it to a third person, and so on. As the story is retold, changes are introduced. Over time, the number of changes increases. How is this process an analogy for what happens to DNA over time? (Just 2-3 sentences)
40 points to whoever responds first

Answers

Answer:

Use Analogies You tell a story to a second person who tells it to a third person, and so on. As the story is retold, changes are introduced. Over time, the number of changes increases.

The story changes over time because of the way the teller and the listener communicating. The DNA of a newborn baby is a combination of their mom and dad. Every time the DNA changes it's because there is a new combination of two people.

In which stage of the cell cycle does the cell die
A) interphase
B) mitosis
C) apoptosis

Answers

The short answer is that cell death by apoptosis in various phases of cell cycle depends on the cell-type and inducer/stimulus. Hematopoietic cells can undergo apoptosis at all stages of cell cycle as noted by Bertrand. However, mesenchymal or epithelial cells usually undergo apoptosis at the G1/S or G2/M phase of the cell cycle.

What happens after Telophase?
&
36/86
>
C

Answers

Answer:

The chromosomes begin to uncoil, which makes them diffuse and less compact. Along with telophase, the cell undergoes a process called cytokinesis that divides the cytoplasm of the parental cell into two daughter cells.

Dose Centipede have cells

Answers

Answer:

eveything that has organic material has cells, for example, rocks have molecules not cells

Explanation:

Which feature is found in both cartilage and bone ?

Answers

Answer:

The features that are found in both cartilage and bone are,  living cells embedded in a matrix

Explanation:

Answer:

it would be the nose

Explanation:

Why is a pasture-type system is
more labor intensive than
controlled systems?
A. There is greater maintenance of the
equipment.
B. There is greater need to handle diseases.
C. There is greater area to cover to observe and
manage the animals.
D. There is greater cost of feed per animal.

Answers

Answer:

The correct option is C.

There is greater area to cover to observe and

manage the animals.

Explanation:

This is because pasture type system refers to a large area of land where grasses are grown and animals are allow to graze the area of land to obtained nutrients. In this system there is large area of land where animals are well observed while feeding in order to prevent the risk of loss and attacks.

What is dumping?
A.
Dumping is sending surplus products as aid to poor or disaster-stricken areas.
B.
Dumping is hoarding scarce goods to cause an increase in price.
C.
Dumping is disposing of food items that don’t meet state food standards.
D.
Dumping is exporting goods at prices that are lower than their value.

Answers

Answer:

C.?

Explanation:

Sorry if it wrong

For each of the following minerals, say what properties of the material make it important in carrying out it's particular function.
a. tar roads
b. iron bulgar bars
c. plastic furniture
d. metal jewellery
e. clay for building
f. cotton clothing

Answers

Answer:

1. Tar Roads: The qualities of Tar that makes it ideal for road construction are:

The tar-like material that is used for road construction is a combination  (emulsion) of water and liquid asphalt. It serves the purpose of permeating and closing up small lacerations in the existing pavement.

When the emulsion sticks to the "gravel" it reduces the potential for vehicles to skid on the road thus enhancing safety. The "gravel-like" emulsion is applied by rolling and sweeping.

Qualities of Tar are:

Adhesive: its the ability to stick to surfaces including materials such as gravel which it holds together makes it great for road construction;Waterproof: It is not water-soluble. Hence is not easily susceptible to the effects of running water. Resistant to High Temperature: The melting point of Tar is 54 degrees centigrade. The ground can heat up to 45 degrees celsius thus making Tar perfect for road construction as it can remain rigid even in the worst temperatures.

2. Iron Burglar Bars

Steel bars are made from iron. The qualities of steel which make it perfect for securing places and things are:

Strength; This is the ability to withstand breakage and or destruction.  Toughness: Steel is very tough and can not easily bend or break under static loads. Weldability: Most steel bars are actually welded together. Without this ability, steel probably would be useless as a material that can be used for protectionDurability: The only factor that degrades steel is rust. Rust happens when steel is exposed to oxygen which can be found in air and water.

3.) Plastic Furniture

The primary qualities of plastic that make them suitable for furniture are:

Chemical stability: It does not rust or degrade when exposed to weather elements such as oxygen, water, etc. Good impact resistance: Depending on its thickness, plastic can bear a lot of weight and can take a lot of impact without deforming or breaking Good transparency and wear resistance: Plastic can be made transparent. This quality is essential for aesthetic purposes and hence can be used for various kinds of good-looking furniture. As furniture, its surface does not come off like hence it's durability.Low thermal conductivity: This means that it can bear heat without transmitting it easily.  Ability to General formability, good coloring, low processing cost.

4) Metal Jewellery

One of the best metals for jewelery is Tungsten. This is so because it is more durable and stronger than any other kind of material that can be used for jewelery purposes. It is about ten times harder than 18K gold and about four times harder than titanium. Other materials that can be used are:

titaniumstainless steel and cobalt

5) Clay

In it's raw form, clay used for building might not be the best idea as it susceptible to water absorption and hence deformation which generally leads to a collapse of the structure. However, it becomes an excellent material of choice after it has been hardened into brick.

Brick is preferred in construction due to the following qualities:

hardnessHigh Compressive strength, Low Water AbsorptionFrost resistanceFireproofGreat Insulation

6) Cotton is usually preferred as the material of choice for most kinds of clothing due to the following qualities:

Softness. The cotton plant is soft and fluffy and results in a fabric often retains that soft feel. Durability: Its molecular structure makes it able to last very long. Absorbency: it is able to absorb moisture/water. Hence making it more comfortable than synthetic materials   High Dye Tolerance: Ability to hold dye well is an indespensable quality of a good fabric. You don't want to have a fabric whose colours are quick to fade. Breathability: This reduces is very important especially during summer or when the weather or environment is very hot.

Cheers

The tar is roads that have quantities to make them deal with the construction. The liquid is a mix of asphalt and can be adhesive and waterproof.

The iron bars are used for securing the place and things. plastic furniture is used to make suitable furniture and is used for chemical stability etc. The metal jeweler is of titanium, cobalt and stainless steel

Learn more about the following minerals.

brainly.com/question/26208691.

In a simulation they prepared the enzyme disgestion reaction in 4 tubes A+,A-,K+ and K- .what is the difference between the + and -

Answers

Answer:

i nb u ksbhsjhs shhsbsb nsksb s

1. The diagram below represents part of Earth's latitude-longitude system
What is the latitude and longitude of point L?*
45°
30°
15° 0°
15° 30° 45°
30°
N
20°
10°

LI
10°
20°
30°
O (A) 5º E 30°N
(B) 5° N 30°E
(C) 5° W 30° S
O (D) 5° S 30°W

Answers

Answer:

The answer is option D hopefully this helps

Energy Metabolism Pathways Carbohydrate metabolism is responsible for the formation, breakdown, and interconversion of carbohydrates in living organisms. The most important carbohydrate is glucose that is metabolized by all living cells in the first energy-yielding pathway known as glycolysis.
Use your knowledge of glucose for carbohydrate metabolism to select the term that best completes each sentence.
The glucose conversion to_________ opens anaerobic and aerobic metabolic pathways. ________in its role as a coenzyme during glycolysis, escorts hydrogen and electrons to the electron transport chain and the The TCA cycle. converts lactate to glucose and returns the glucose molecule to the muscles through
In the Cori cycle, the release of energy from_________ the process of anaerobic glycolysis.

Answers

Answer:

The glucose conversion to PYRUVATE opens anaerobic and aerobic metabolic pathways. VITAMIN B NIACIN in its role as a coenzyme during glycolysis, escorts hydrogen and electrons to the electron transport chain and the TCA cycle. In the Cori cycle, the release of energy from ATP converts lactate to glucose and returns the glucose molecule to the muscles through the process of Anaerobic Glycolysis.

Explanation:

In metabolism, glycolysis is defined as the splitting of the glucose molecule to form two molecules of pyruvic acid. It is the first main metabolic pathway in cellular respiration for the production of energy in form of ATP(Adenosine triphosphate).

In most cells, cellular respiration occurs in the presence of oxygen. This is known as AEROBIC RESPIRATION which produces the largest number of ATP. Energy can also be gotten by breaking down of glucose in the complete absence of oxygen. This is known as ANAEROBIC RESPIRATION.

The next stage in the degradation of glucose is a two step conversion of the two pyruvic acid molecules from glycolysis into two molecules of acetyl coenzyme A( acetyl - CoA). This occurs in the TCA( tricarboxylic acid) or Krebs cycle.

VITAMIN B NIACIN in its role as a coenzyme during glycolysis, escorts hydrogen and electrons to the electron transport chain and the TCA cycle. Coenzyme A is a derivative of vitamin B which combines with pyruvic acid to form acetyl CoA , 2 molecules of carbon dioxide and 4 molecules of hydrogen in TCA cycle.

In Cori Cycle, (which is also called Lactic acid cycle), energy released from ATP is used to convert lactate to glucose. This is to prevent increased lactic acid in the blood during anaerobic conditions in the muscles.

How do chemical weathering affect land formation?

Answers

Answer:

Chemical weathering erodes the land/basically sort of melts the land away due to the pollution in the rain.

Explanation:

Answer:

Chemical weathering changes the molecular structure of rocks and soil. ... Sometimes, chemical weathering dissolves large portions of limestone or other rock on the surface of the Earth to form a landscape called karst. In these areas, the surface rock is pockmarked with holes, sinkholes, and caves.

What is point source pollution?
In point source pollution, the pollutants come from a ______
, easily identifiable source.

Answers

the answer would be single

Answer:

What is point source pollution?

In point source pollution, the pollutants come from a

single, easily identifiable source.

Explanation:

plato answer

A)x-linked
B)No answer text provided
C)recessive
D)dominant

Answers

Answer:

D)dominant

Explanation:

The correct answer is D) dominant

5. The fossilized jawbones in the diagram below show the changes in organisms over time.

Answers

Answer:

B. These fossils provide evidence that evolution occurs over long periods of time

Explanation: The diagrams show different jawbones millions of years apart meaning that evolution took very long periods of time, I hope I'm correct

Answer:

the answer is B

Explanation:

i did the test on preformance

1. The expression of Hitchhikers thumb is due to recessive gene expression and you can express it. Use alphabet H. What is your genotype?

Answers

hh
Hope this helps :)

Did the seized tusk come from one of the recently slaughtered elephants? ________ What evidence supports your finding?

Answers

Complete question:

Now you are ready for your first major assignment. Your colleagues are investigating a newly seized tusk and wonder if the tusk is from a recently discovered crime where 10 elephants from the same population were found dead with their tusks removed. The genotype of the seized tusk for five short tandem repeat (STR) loci is shown in Table 1. Allele names for each of the STR loci correspond to their size in base pairs (bp). Table 2 lists the genotypes of the same five STR loci for 10 recently slaughtered elephants.

Did the seized tusk come from one of the recently slaughtered elephants? ________ What evidence supports your finding?

Note: You will find the tables in the attached files

Answer:  

Probably the seized tusk belonged to elephant number eight.

Explanation:

Potentially, the seized tusk might belong to individual number eight. In both the tusk and the elephant, the genetic analysis resulted in the same-sized alleles for each locus.

FH19: 193 193FH60: 147 147FH67:97 103FH71: 62 62FH129: 152 160

The fact that, among the ten individuals of the population, only the individual number 8 matches the tusk for SRT loci, suggests that it belongs to the animal, but it does not ensure it 100%.

What is your opinion about minor children (under the age of 18) donating one of their kidneys for their brother or sister? Write at least three sentences stating your opinion and backing your answer.

Answers

i believe that children under the age of 18 should not be permitted to donate kidneys. it could possibly cause health issues down the line. also decisions made at a young age might not be a good idea.

What are 3 examples of dna

Answers

Explanation:

An example of DNA is the chain of basic materials in the chromosomes of the human cell.

just check the photo dont worry that is correct

This type of sexual reproduction is when sperm and egg join together externally (outside of the body). *

Answers

Answer:

External Fertilization

Explanation:

Please mark brainliest

Capturing energy is critical to
every environment because
without it producers are unable to
A. absorb water
B. make their own food
C. reproduce
D. recycle nutrients

Answers

Answer:

C. reproduce

Explanation:

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