How many double bonds in C2H4, if this molecule is
possible?
A-1
B-2
C-3
D-4

Answers

Answer 1

Answer:

2 bonds...................

Answer 2

Answer:

answer is : A :1

Explanation:

Double bonds are made of two bonding pairs of electrons (a sigma bond and pi bond). Triple bonds have three bonding pairs of electrons (a sigma bond and two pi bonds).

As the number of bonds between atoms increases, the length decreases, strength increases, and dissociation energy increases. This is because when...


Related Questions

accordingly explain the condition necessary for respiration​

Answers

Answer:

air ,water,food

Explanation:

water: you need a lot of water so you can easy respirate

food : a good balance diet help in respirating

what's 9+10 ijiivtrzxr7rx7r​

Answers

Answer:

19

Explanation:

Answer:

9 + 10

is 19 is your answer

classification of casava​

Answers

Answer:

Manihot esculenta

Explanation:

i think this is the answer

Manihot esculenta

..................................

Biomolecules are the large molecules necessary for life that are built from smaller organic molecules. There are four major
classes of biological macromolecules: carbohydrates, Lipids, proteins, and nucleic acids, and each is an important component
of the cell and performs a wide variety of functions. Some common biomolecule functions are listed below. Select ALL the
functions of proteins
Options :
A. store energy
B. provide immunity
C. provide structure
D. catalyze reactions
E. store genetic information

Answers

Answer:

B-provide immunity,C-provide structure,D-catalyze reactions

Explanation:

I just did the USA Test Prep. I thought it only let me picked one but I chose b and d. I was just missing C:(lol wtv yw

Protein  promotes metabolic reactions, supports tissue growth and repair, and synchronizes biological processes. Proteins give your body a structural foundation while also ensuring optimal pH and fluid balance. Thus option B, C, D is correct.

What is function of protein?

Amino acids make up proteins. These substances aid in transforming T cells, B cells, and antibodies—important immune system components—into germ-fighters that recognize and eliminate potentially infectious cells as they enter your body.

Amino acid chains are the building blocks of proteins, which fold into distinctive three-dimensional structures.

The final folded shapes of proteins are well-suited for their tasks, and the bonds inside protein molecules assist to stabilize their structure.

An enzyme is a biological catalyst that speeds up a chemical reaction without changing its equilibrium, according to a short and straightforward definition.

Therefore, protein perform  a wide variety of functions in a cell.

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The type of reasoning that is the basis of the scientific method is _____ reasoning.

Answers

Deductive reasoning is applied to the scientific method

which among the following elements belong to period 3 in the periodic table? ​

Answers

Answer:

The third period contains eight elements: sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, and argon........

Explanation:

Thank you!!!

What is the function of restriction enzymes?
A)joins nucleotides during transcription
B)adds new nucleotides to the growing strand of DNA
C)joins nucleotides during replication
D)repairs breaks in sugar-phosphate backbones
E)cuts nucleic acids at specific sites

Answers

Answer:

Bacteria that cut DNA molecules at specific sequences.

Explanation:

In other words: E. Cuts nucleic acids at specific sites.

1. A decomposer ultimately obtains all its food from
O A. mushrooms.
O B. sunlight
O C. dead and decaying plant matter.
OD. preying on other living organism.

Answers

the answer is going to be C. hope this helps!
C ) dead and decaying plant matter. This is because they get their energy from that and the nutrients that decomposers release into the environment become part of the soil, making it fertile and good for plant growth. These nutrients become a part of new plants that grow from the fertile soil.

Put the steps of HIV cellular infection and replication in the correct order:

- The T helper cell is killed.
- New HIV virion is assembled.
- New HIV buds off the T helper cell getting it's envelope while the Protease enzyme matures the new virus.
- The Integrase enzyme integrates the viral genome with the T helper cell's genome.
- Uncoating of the capsid.
- Reverse Transcriptase turns the ssRNA genome into ds DNA.
- Merging of viral envelope with the T helper cell membrane.
- The T helper cell copies the HIV genome and makes HIV proteins.
- Attachment of the gp proteins in the HIV envelope to CD4 on the T helper cell.

Answers

holy person produces antibodies to packages that invade the body. But with the infection of H. I V, the body was, is the ability to produce antibodies and how is that possible? Um, and it shows that the matter said Axe and destroys CD for he cells, which help Erkki South. So we have determined the function of this and how we can affect, as we see in this of antibody production. So basically, the helper peace. So is the middleman in turned immune response. So we have an antigen presenting cell that presents an androgen that activates Alberti sell. The activation of that T cell releases side of kinds that activate B cells. Activation of B cells triggers proliferation of plasma cells, which Ruiz antibodies and thus is able to fight the whatever pathogen has entered the body. But if the virus directly kills off helper T cells, then there's no way for the immune system to actually launch a defense against HIV or any other pathogen. Because the cells and T cells, which carry out cell mediated and Hugh Meral immune responses, are not able to be activated and carried out. So let's see which answer best matches that a cease the CD 40 sells a record intermediate are required intermediate in a series of salty cell signal events that must be completed before B cells. Commager. Yes, that is true. As depicted by this diagram. Let's see if there's any other true statements he states the city for T cells have CD four molecules Cove in when we bound to their source cell surfaces and do not induce apoptosis and other cells during an immune response. So, really, we have nothing to the inducing a pop doses really has nothing to do with, uh, the question. It also does not see the forties city for T cells do not induce apoptosis. So that is just a false statement. Um, and it's just not relevant to the question. See, states That CD for T cell counts are about 1000 per micro liter and a healthy person, but drop over 400 per micro liter. So once again, this is not relevant to how C D four T cells and the loss of them, uh, contribute to the loss of any body synthesis. And D says that CD four cell precursors air formed in the bone marrow and then migrate to the thymus where they developed their T cell receptors. So once again, not relevant. So we can see that B, C and D are just irrelevant to the question of antibody synthesis and the connection to CD four C T cells, which, uh, the correct answer to is a

What is the formular for carbon dioxide​

Answers

Answer:

CO2

Explanation:

one carbon atom and 2 oxygen atoms

hope this helps :)

So, he’s basically correct. But, I’ll answer it still. CO2

3. Susceptibility to antibiotics is a trait, or inherited characteristic, of bacteria.
a. What are two variations, or different versions, of this trait?

Answers

Bacteria can be SUSCEPTIBLE or RESISTANT to antibiotics. Susceptible bacteria can't grow if the drug (i.e., the antibiotic) is present.

Susceptibility to antibiotics occurs when bacterial colonies can't grow in presence of the antibiotic (e.g., erythromycin).

Some antibiotic-resistant bacteria include:

Methicillin-resistant Staphylococcus aureus (it is one of the most common antibiotic-resistant bacteria)

Vancomycin-resistant Enterococcus

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what causes brain tumar

Answers

bru im tweaking my answer didnt even make sense Imaoo

Explain how water makes its way to the leaves in the tops of the tallest trees against the force of gravity. Name what the climbing of water is called and the two other properties that are responsible for making this possible.

Answers

Answer: Capillary action occurs because water is sticky, thanks to the forces of cohesion (water molecules like to stay close together) and adhesion (water molecules are attracted and stick to other substances).

It reminds me of naruto

list the four major types of organic compounds

Answers

carbohydrates, lipids, proteins, and nucleotides
yww lol

how are provirus and viral DNA related?

Answers

Answer: Howard Temin's provirus hypothesis holds that the viral RNA introduced into cells during infection becomes converted to DNA by reverse transcription. Viral DNA is then integrated into the host genome.

Explanation: Hope this helped!

Answer:Howard Temin's provirus hypothesis holds that the viral RNA introduced into cells during infection becomes converted to DNA by reverse transcription. Viral DNA is then integrated into the host genome.

Explanation:there really isn't a explanation

6. The theory that suggests that plates are slowly moving is called
A. Magnetic Reversal
C. Continental Slope
B. Plate Tectonic
D. Continental Drift

Answers

D. Continental Drift

What is the definition of
Filtration, Reabsorption, secretion and excretion?

Answers

Answer:

Excretion is the removal of waste products made in the cells during metabolism from the body.

Filtration is the process in which fluid and small molecules pass into the Bowman's capsule

Reabsorption is when water, ions and nutrients are transferred back into the interstitial fluid via both active and passive transport

Secretion is the removal of waste products from the blood and interstitial fluid.

Filtration is the removal of solid particles from a liquid or gas by a filter. Reabsorption is being absorbed again. Secretion is the creation and disposal of A substance produced by a cell. Execration Is the process of eliminating matter

2. How can you apply the decantation method in your everyday living?
6

Answers

Answer:

Answer: A common example is decantation of oil and vinegar. When a mixture of the two liquids is allowed to settle, the oil will float on top of the water so the two components may be separated. Kerosene and water can also be separated using decantation.

Explanation:

searched it

could someone help me match these? thanks also I WILL GIVE BRAINLIEST

Answers

Answer:

yes

Explanation:

bcoz i love ithbanjshdbxhjdj nahgdbehdja

Which of these two connective tissues, hyaline cartilage or bone (osseous), would you expect to heal more quickly if injured?

Answers

Answer:

Injury in bones is expected to heal quicker than damaged hyaline cartilage.

most elements can only be made where​

Answers

Answer:

The most common elements, like carbon and nitrogen, are created in the cores of most stars, fused from lighter elements like hydrogen and helium. The heaviest elements, like iron, however, are only formed in the massive stars which end their lives in supernova explosions.

Explanation:

Describe the stretch shortening cycle (sac)
and explain how it relates to exercise

Answers

Explanation:  The stretch-shortening cycle (SSC) refers to the muscle action when active muscle lengthening is immediately followed by active muscle shortening. ... The stretch-shortening cycle (SSC) refers to the muscle action when active muscle lengthening is immediately followed by active muscle shortening.

How do nonmetals tend to form bonds? ( O by losing protons
O by losing electrons
O by gaining electrons
O by gaining protons​

Answers

By gaining protons :))))

Answer:

C: by gaining electrons

What was the first genetically engineered product to reach the marketplace.
O amoxicillin
O human insulin
O tissue plasminogen activator
O penicillin

Answers

Answer:

b) Human insulin

Explanation:

Answer:

penicillin

yďbtdbkfdz

Cấu tạo của tế bào nhân sơ

Answers

Answer:

what is this?

Explanation:

i dont know

the middle ear is an what filled chamber?

Answers

Answer:

The middle ear is an air-filled chamber.

Explanation:

The middle ear is an air-filled cavity/chamber that is between the tympanic membrane and the inner ear.

Answer: Air-Filled

Explanation: :b

Discribe how stellas view of these cells and thair parts changed as she transitioed through the three levels of magnification be sure to identify at least one cell structure or part of the paramecium in your description

Answers

Answer:

hesabu yangu ya frei mbele logi masic ungiwana

Explanation:

hesabu yangu ya frei mbele logi masic ungiwana ya

A student pushes a toy car along a straight track. The car travels from point A to point B in 2 s.
0
1 m
2 m
3 m
4 m
A
B
What is the speed of the toy car?
A. 0.7 m/s
B. 1.5 m/s
C. 2.0 m/s
D. 6.0 m/s

Answers

Answer:

D.

I'm not sure for that

Explanation:

di ako sigurado sa sagot ko..

While Kepler supported the Copernican model of the universe, Kepler concluded the following:
A. The circular orbits of the Copernican model weren't correct. Paths of the planets were elliptical.
B. The circular orbits of the Copernican model weren't correct. Paths of the planets were rectangular.
C. All other bodies in the universe move around the moon in triangular paths.
D. All other bodies in the universe move around the earth in circular paths.

Answers

Given the laws put forward by Kepler, we can conclude that option A is correct, he proved that the orbits of the planets were in fact elliptical.

Though options B and C are false due to the impossible nature of the shapes they describe for planetary orbits, option D is also false but is something that many astronomers once believed. It wasn't until the Kepler observations that this theory was proven to be false.

Kepler believed in the Copernican model of the universe, in which the planets revolved around the sun, but through measuring and observing the movement of mars, he would come to the realization that the orbits of the planets were in fact not circular as he and many other believed, but rather elliptical in nature.

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bakit mahalaga ang Pag r-recycle?​

Answers

Answer:

Bagaman ang pag-recycle ay naging isa sa pang-araw-araw na gawain ng bawat isa, maraming tao ang hindi alam Bakit mahalaga ang pag-recycle. Upang mapanatili ang kapaligiran at likas na yaman, mahalagang pamahalaan nang maayos ang mga hilaw na materyales. Para dito, ang pag-recycle ay isang napakahalagang proseso mula nang makamit namin ang pagbawas ng mga hilaw na materyales at muling paggamit at pagsasama ng siklo ng buhay ng basura sa mga produkto.

Explanation:

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