For each pair (4), choose the stronger bond:

1. H–F (single bond) or H–Cl (single bond)
2. C–C (single bond) or C=C (double bond)
3. F–F (single bond) or H–F (single bond)
4. O=O (double bond) or C=C (double bond)

Answers

Answer 1

Answer:

line 3

Explanation:

let me know if you have any questions


Related Questions

Help! Can somebody explain the answer and how they got it?

"Write the equation for the first ionization of potassium."

Answers

Answer:

K°(g)* + 419 Kj/mole => K⁺(g) + e⁻

Explanation:

1st ionization step for potassium is the ionization of the 4s¹ electron. This requires 419 Kj/mole energy (endothermic). The reaction equation is ...

K°(g)* + 419 Kj/mole => K⁺(g) + e⁻

*note: Ionization of group IA metals requires they be in gas phase. That is, as shown by the Born-Haber Cycle** for formation of ionic compounds ...

K°(s) + 89.24 Kj/mole => K°(g); then ...

K°(g) + 419 Kj/mole => K⁺(g).

**Recommend review of Born-Haber cycle for formation of ionic compounds.

Arrange the steps in order to describe how photons and carbon dioxide (CO2) contribute to the warming of Earth.

CO2 in the atmosphere absorbs infrared
photons.

CO2 in the atmosphere emits infrared photons back toward Earth.

Photons from the Sun strike Earth and become infrared photons.

Earth radiates infrared photons into the atmosphere

The Sun radiates sunlight (visible)
photons

Answers

The Sun radiates sunlight (visible)  photons

Photons from the Sun strike Earth and become infrared photons.

Earth radiates infrared photons into the atmosphere

CO2 in the atmosphere absorbs infrared  photons.

CO2 in the atmosphere emits infrared photons back toward Earth.

Certain gases are known to contribute towards global warming. Such gases are called greenhouse gases. The infrared rays from the sun are absorbed by these gases as they are re-emitted from the earth and re-emitted.

The sun radiates photons to the earth which is re-radiated into outerspace from the earth's surface. CO2 and other greenhouse gases absorbs these gases and re-emit them to the earth thereby causing a gradually rise in the temperature of the earth called global warming.

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According to the law of conservation of energy, what will most likely happen in a closed system?

Answers

Answer:

It is right or wrong I cannot say if it is wrong forgive me.

Answer:

The energy in the system will likely be exchanged, but the matter will not be exchanged.

Explanation:

According to the first law of thermodynamics, also known as Law of Conservation of Energy, energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another. The law of conservation of mass also states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change.

Emission and abpsorption spectra from a given atom or molecule can tell us: Group of answer choices the composition of substances, even at great distances away, by identifying its uniques spectral fingerprint. The motion toward or away from us based on the doppler effect and corresponding red shift or blue shift The temperature of an object by using Wien's Law. All of the above.

Answers

Answer:

The motion towards or away from us based on the Doppler effect and corresponding red shift or blue shift.

Explanation:

The emission and absorption spectra demonstrates the lines where light has been absorbed by the atoms. The spikes can be observed due to atoms releasing photons at those wavelengths. Infrared and ultra violet waves can be observed during spectroscopy.

A pupil has drawn the electronic structure of fluorine and the diagram is shown below. However,
mistakes have been made. State three mistakes that have been made.

Answers

The first shell can only hold 2 electrons, but the pupil placed in 8 electrons.

The second shell can hold up to 8 electrons, but the pupil only placed in 2 electrons.

Flourine only has 9 total electrons, yet there are 10 electrons in the diagram.

Answer:

Explanation:

In the Fluorine atom there are 2 electrons in the innermost shell and 7 i the outer shell.

The process of diffusion can be described as: Movement of water from the area of high concentration of solute to the area of low concentration of solute. Movement of solute from the area of low concentration of solute to the area of high concentration of solute. Movement of water from the area of low concentration of solute to the area of high concentration of solute. Movement of solute from the area of high concentration of solute to the area of low concentration of solute.

Answers

Answer:

Movement of water from the area of high concentration of solute to the area of low concentration of solute.

Explanation:

Diffusion can be defined as the movement of gas molecules from a region of high concentration to a region of lower concentration until an equilibrium is attained or reached. This mixing of gas molecules in the liquid or gaseous state is due to their kinetic energy of random motion i.e without requiring bulk motion.

This ultimately implies that, diffusion is a phenomenon through which gas molecules in either a gaseous or liquid state spread out in response to a concentration gradient, which is simply the difference in concentration of the gases across a space.

During diffusion, molecules move from areas of high concentration to areas of low concentration. Also, diffusion does not require energy to move molecules.

Hence, the process of diffusion can be described as movement of water from the area of high concentration of solute to the area of low concentration of solute.

A solute can be defined as a substance that is typically dissolved in a liquid solvent such as water, coffee, tea, etc., to produce a solution.

Which statements are true in regard to the VSEPR theory?
Select all that apply.

Molecules acquire a shape that results in the greatest charge.

Molecules acquire a shape that minimizes the repulsions of electron groups.

Molecules acquire a shape that maximizes the distance of electron groups.

Molecules acquire a shape that results in the lowest possible energy state.

Answers

The correct option is D. 2) Anti-bonding electrons or lone pairs. These lone pairs, and bonds helps to form the shape which keeps these electrons separate as possible.

1a.calculate the relative formula mass of magnesium oxide when the relative atomic masses are O=16 Mg=24
1b.calculate the percentage by mass of magnesium in magnesium oxide​

Answers

here's the answer to your question

The relative mass of the magnesium oxide (MgO) is equal to 40 g. The percentage by mass of magnesium in MgO is 60 %.

What is the mass percentage?

The mass percentage of any element in a particular compound can be calculated from the number of parts by mass of the element in 100 parts by mass of a given compound.

Calculate the molar mass of the given compound by adding the atomic masses of the present elements. Then, the percentage of each element can be determined by dividing the total mass of the element by the molar mass of the compound multiplied by 100.

Given, the molecular formula of magnesium oxide is MgO. The atomic mass of Mg and O is 24 g and 16 g respectively.

The relative formula mass of the MgO = 40 g/mol

The mass percentage of the Mg = (24/40) × 100 = 60 %

Therefore, the mass percentage of the Mg in MgO is equal to 60 %.

Learn more about  the mass percentage, here:

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Complete combustion of a 0.350 g sample of a compound in a bomb calorimeter releases 14.0 kJ of heat. The bomb
calorimeter has a mass of 1.20 kg and a specific heat of 3.55 J/(g;°C).
If the initial temperature of the calorimeter is 22.5°C, what is its final temperature?
Use 0= mCOAT

Answers

Answer:

i cant understand what you wrote

Explanation:

it's a blank screen

What will happen if we drink liquid nitrogen?

Answers

Because of its low temperature liquid nitrogen can be extremely damaging to body tissue, causing frostbite and cryogenic burning on contact. If ingested it can lead to severe internal damage, destroying tissue in the mouth and digestive tract.

What is the valency of halogens?why​

Answers

Answer:

-1

Explanation:

that B) My color is sickle: I have a drop of water in my body when I was given heat, white powder was formed So who am i Lets identify. Write my chemical molecular formula​

Answers

Explanation:

i don't understood your question ⁉️

and what do u mean by my color is sickle

Research about the factors that influence the climates of these places including effects of Sun on the climate. Please give me fast i need help

Answers

Answer:

Distance from the sea, ocean currents, direction of prevailing winds, shape of the land, latitude, temperature, air pressure and  distance from the equator.

Explanation:

Distance from the sea, ocean currents, direction of prevailing winds, shape of the land, latitude, temperature, air pressure and  distance from the equator are the factors that influence the climates of any region. These factors has a great impact on the climate of a region, those regions which are nearer to the equator experiences hot climate whereas those regions which are far from the equator having cold climatic conditions.

a gas has a volume of 7L and a mass of 4.44*10^5 micrograms. what is it's density

Answers

Answer:

Explanation:

D = mass/volume.

for the units, I'll take it in g/L but I don't know which units you want.

4.44*10^5 mg =  0.444 grams.

0.444/7 = 0.0634 g/L

describe the location of the Philippines​

Answers

Answer:

Philippines, island country of Southeast Asia in the western Pacific Ocean. It is an archipelago consisting of more than 7,000 islands and islets lying about 500 miles (800 km) off the coast of Vietnam. Manila is the capital, but nearby Quezon City is the country's most-populous city.

Calculate the amount (in moles) of gas which occupies 250cm³ at STP

Answers

Answer:

0.01

Explanation:

volume of 22.4 L (22,400 ml) at s.t.p. 250 ml out of 22,400 ml is 0.01 rounded, therefore I assume that is the answer. About 0.01 mole occupies 250 cm3 at s.t.p.

What exactly is a proton? Is it a member of the periodic table?

Answers

The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present).

Vitamin C is a water-soluble vitamin, so your body doesn't store it. You have to get the required amount from your diet (citrus fruits are a great source!), or you could take a daily vitamin C supplement pill. Vitamin C is ascorbic acid, so to determine how much vitamin C (acid) has been placed in each pill, you could do an acid-base titration. One vitamin C pill was dissolved in water and titrated to an endpoint by 16.00 mL of a 0.447 M solution of NaOH. How many grams of ascorbic acid were there in the pill? (MW of ascorbic acid is 176.1 /mol). Explain and show your work.​

Answers

Answer:

Mass of ascorbic acid in the pill = 7.152 x 176.1/1000 = 1.26 g

Explanation:  

The mass of ascorbic acid in the pill would be,  

1.26 g  

Now,  

Moles of ascorbic acid = Moles of NaOH = 0.447 M x 16 ml = 7.152 mmol  

Mass of ascorbic acid in the pill = 7.152 x 176.1/1000 = 1.26 g

Calculate the amount of solute excess out when the 60 gm of saturated solution of

NH4Cl having solubility of 57 at 60 ℃ is cooled to 20 ℃ , the solubility being 35.

Answers

Answer:

weight of salt = 90 gram,

solubility = 50

sing formula

solubility of solute =

weightofsolventinsaturatedsolution

weightofsoluteinsaturatedsolution

×100

or 50=

weightofsolventinsaturatedsolutio

90gm

×100

so weight of solvent in saturated solution =

50

90gm

×100=180gm

Hence 180 gm of water is required to prepare a saturated solution.

What is the molarity of a solution made by dissolving 8.60 g of a solid with a
molar mass of 21.50 g/mol in 280.0 mL of solution.

Answers

Answer:

1.43 M

Explanation:

We'll begin by calculating the number of mole of the solid. This can be obtained as follow:

Mass of solid = 8.60 g

Molar mass of solid = 21.50 g/mol

Mole of solid =?

Mole = mass / molar mass

Mole of solid = 8.60 / 21.50

Mole of solid = 0.4 mole

Next, we shall convert 280 mL to litre (L). This can be obtained as follow:

1000 mL = 1 L

Therefore,

280 mL = 280 mL × 1 L / 1000 mL

280 mL = 0.28 L

Thus, 280 mL is equivalent to 0.28 L.

Finally, we shall determine the molarity of the solution. This can be obtained as illustrated below:

Mole of solid = 0.4 mole

Volume = 0.28 L

Molarity =?

Molarity = mole / Volume

Molarity = 0.4 / 0.28

Molarity = 1.43 M

Thus, the molarity of the solution is 1.43 M.

Question 3: Functional Groups
Identify the type of molecule from the name of the molecule.

Answers

Answer:

1. Organic Alcohol

2. Ester (specifically acetate ester)

3. Organic Alcohol

4. Carboxylic acid

5. Ketone

6. Ether

7. Amine

Explanation:

You can tell what type it is both from the nomenclature and looking at the functional group on the molecular structure. Hope this helps!

You go fishing and obtain some lead weights for your trip. Since you are the smartest chemistry student
in the land, you know that lead's density is 11.34 g/mL. If there are 50 weights in a 250. mL box, what is
the mass of each weight?

Pls show work if u can!

Answers

Answer:

56.7g

Explanation:

Density = mass/volume

According to this question, some lead (Pb) of certain weights was obtained on a fishing trip. The density of lead is given as 11.34g/mL. If the 50 weights are placed in a 250. mL box, the mass of the lead are as follows:

Density = mass ÷ volume

11.34g/mL = mass/250mL

mass = 250 × 11.34

mass = 2835g

Since the 50 weight of lead weighs 2835g, then the mass of each weight is calculated as follows:

= 2835/50

= 56.7g

Identify the group number and generic outer electron configuration for a neutral main‑group element with the following two Lewis dot symbols.

X with 1 dot on the top, bottom and right

X with 1 dot on all sides

Answers

Answer: Answer to #1 is 3A and ns2np1

Answer to #2 is 4A and ns2np2

Explanation:Group number is the number of valance electrons and generic outer electron configuration has to add up to equal the number of valance electrons

The element in the first diagram is in group 13 while the element in the second diagram is in group 14.

The Lewis structure of an atom of an element is a representation of the number of valence electrons on the outermost shell of the atom of that element. Every group of elements have a generic electron configuration which represents the number of valence electrons contained by atoms of elements in that group.

In the first diagram, the element X belongs to group 3A(13) and has a generic outer electron configuration, ns2np1. In the second diagram, the element X is in group 4A(14) and has outer electron configuration ns2np2.

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Which of the following olosaic structures represents a poskwe 9 protons, 10 mentions and 10 elections 12 protons, 1814 neutrons and 12 elections 12 protons, 12 neutrons and 10 elections​

Answers

Answer:

migraine

Explanation:

d

What information does the percent composition of an atom in a molecule
give?
A. The relative number of atoms one element contributes to a
molecule
B. The relative amount of mass an atom contributes to a molecule
C. The total mass that element contributes to a molecule
D. The total number of atoms of that element in a molecule

Answers

C.

This is basically the definition of percent composition which is how much mass a element contributes to a specific molecule.

Answer: B.

Explanation:

the relative amount of mass an atom contributes to a molecule

what do you mean by acceleration due to gravity of a body is 10 metre per second square​

Answers

Answer:

If a body is accelerated by 10m/s^2, it means that the body's speed (or velocity to be precise) is increasing by 10m/s every second. That is, if the initial ...

Assertion: Atomic mass of aluminium is 27 Reason: An atom of aluminium is 27 times heavier than 1 / 12th of the mass of the C – 12 atoms.​

Answers

Answer:

i is the correct answer.

Explanation:

the RAM of aluminum is indeed 27. And since the RAM of substances are measured in terms of the C-12 isotope then R indeed explains why the RAM Al is 27.

Specific heat capacity is _____.


greater for metal than for wood

the amount of heat required to raise the temperature of 1g of a substance 1 oC

represented by the symbol, Q

all of these

Answers

Answer:

all of this

Explanation:

15. The starting diol for this molecule is
O A. ethanol.
O B. propan-1,3-dioic acid.
O C. propan-1,3-diol.
O D. ethan-1,2-diol.

Answers

Answer with explanation

The starting diol for this molecule is :-The starting diol for this molecule is :-D) ethan-1,2-diol.

Hope my answer is helpful to you ☺️

PLZ HELP ME WITH MY WORK
For his science fair project, Martin studied the growth of trumpet vines. He grew 20 trumpet vines. All of the conditions were the same, except that he grew 10 in a flower bed without support and 10 in a flower bed near a trellis. The stems of the vines near the trellis twisted around the trellis, and these Yines grew tall and seemed much healthier than the vines grown without a trellis. In fact, four of the vines grown without a trellis died. Which characteristic of living things were the trumpet vines displaying as the stems twisted around the trellis?
A. Movement
B. Response to a stimulus
C. Use of energy
D. Reproduction​

Answers

Answer:

it's B

Explanation:

Climbing plants require an external support to grow vertically and enhance light acquisition. Vines that find a suitable support have greater performance and fitness than those that remain prostrate. Therefore, the location of a suitable support is a key process in the life history of climbing plants

Other Questions
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The strategy is to provide the best kitchen layout possible so that food scientists can devote their time and energy to product improvement, not wasted effort in the kitchen.Flow Refrigerator Counter Sink Storage StoveRefrigerator - 8 14 0 0Counter 7 - 4 4 8Sink 4 14 - 4 0Storage 3 0 0 - 5Stove 0 9 4 11 -For layout number one, the cumulative "loadtimesdistance" or "movementcost"equals=_____feet (enter your response as a whole number).For layout number two, the cumulative"loadtimesdistance" or "movement cost"= _________feet(enter your response as a whole number). Functions f and g are defined for all realnumbers. The function f has zeros at -2, 3, and 7:and the function g has zeros at -3, -1, 4, and 7.How many distinct zeros does the productfunction f g have? I really need the help please and thank you Which of the following is true for a pure monopolist?Group of answer choices:a: The firm has a perfectly elastic demand curve.b: The firm will always earn an economic profit.c: The demand curve is above the marginal revenue curve.d: None of these is true. What is the bad cholesterol that is linked to high triglyceride levels, and what disease can it cause? 1. Which of the following species migrate over large distances?Group of answer choicesa. monarch butterfliesb. wildebeestsc. cariboud. all of the above hai vt chuyn ng ngc chiu qua A vi B cng lc, ngc chiu gp nhau . Vt qua A c vn tc 10m/s, qua B c vn tc 15m/s. AB=100ma, ly trc ta l ng thng AB, gc ta B , c chiu dng t A sang B , gc thi gian l lc chng cng i qua A v B . 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What does Joe and Edmunds conversation most likely offer each of them? a sense of being needed a sense of brotherhood a sense of rebellion a sense of being understood Jenny puts 8 stickers on each page of her note book. She uses 72 stikers in all which equation can be use to find the number of in jennys note book The cost of three pants and four shirts is $68.45 if a pant costs $6.85 more than a shirt find the cost of a pant and a shirt estimate to the nearest whole number. Find the distance across the lake, assume the triangles are similar Her eyes are as black as the night is an example of Pythagorean TheoremThe diagram shows square 1, 2, and constructed on the sides of righttriangle31 2Which statement about the squares must be true? 1)(estudiar) los efectos del uso de la energa nuclear.2)(controlar) la emisin de humo de los carros.https://mylabs.px.pearsoned.com/Pegasus/Modules/Assessment Tool Presentation/frm Student Presentation.aspx?intAssetID=2000002180496013&mode=test&AssetLinddType here to searchBiLE Heat transfer takes place when:A. there is a temperature difference.B. conduction or convection occurs, but not radiation.OC. thermal energy is present.D. None of these For the function determine: How do I solve this? Can someone please help me with this?John is a 35-year-old male (he/him) administrative assistant who enjoys playing baseball on weekends. During one of their games, John began running from first to second base. As he pushed off to start running, John heard a pop and felt a sharp pain in his right calf as though he had just been kicked in the back of his leg. John fell to the ground and experienced significant pain when putting weight on his right leg. John tried to walk but had to be carried off the field and was taken to the emergency department. At the hospital, it was noted that John had significant swelling at the back of his right leg, had a palpable and visible deformity in the distal calf, and was only able to put small amounts of weight on his right leg. The emergency doctor squeezed the back of Johns right calf and noticed that the ankle would not plantarflex. An x-ray and blood work were ordered which came back without any significant findings.Case Study Questions:1. Explain the possible anatomical structures that were affected by the injury and how each relates to Johns presenting symptoms and test results (250 word maximum).2. 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From the management plan you've proposed, what effects will each treatment have on the patient's anatomy? Include any positive and negative effects this plan may have on the patient.