Help plzzzz urgent !!!!!!!!!!!!!!

Help Plzzzz Urgent !!!!!!!!!!!!!!

Answers

Answer 1

Answer: B < C < A

Explanation:

Ok so things that have the lowest pka are the strongest acids. the higher the pka the less acidic it is.


Related Questions

Atoms tend to form compounds because they have an unstable number of ___
A. Protons
B. Isotopes
C. Valence electrons
D.neutrons

Answers

A is the answer you are looking for
A. protons hope this helps

Calculate the amount of heat needed to evaporate 235.0 grams of water from 25.0°C to 100.0°C.

Answers

I hope this helps answer your question. :)

These problems are very hard to do digitally so I would recommend trying to practice these types of problems on paper :)

Match each form of energy with its correct description.
mechanical
involving the motion of atoms
chemical
involving electrical charges
thermal
involving the position and motion of
an object
electrical
involving energy stored in chemical
bonds

Answers

Answer

involving electrical charges: electrical

involving energy stored in chemical

bonds: thermal

involving the position and motion of

an object: mechanical

involving the motion of atoms: chemical

Explanation:

almost 100 this is right, sorry if this is wrong :)

Mechanical: involved the motion of atoms
Chemical: unblocked energy stored in chemical bonds
Thermal: involves the position and motion of an object
Electrical: involving electrical charges

Sunlight heating the sand on the beach on a hot summer day is an example of

a. conduction
b. convection
c. radiation
d. none of these

Answers

Answer:

c

Explanation:

Sunlight heating the sand on the beach on a hot summer day is an example of radiation which is electromagnetic radiation.

What is electromagnetic radiation?

The electromagnetic radiation consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.

The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.

In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.The position of an electromagnetic wave in an electromagnetic spectrum is characterized by it's frequency or wavelength.They are emitted by electrically charged particles which undergo acceleration and subsequently interact with other charged particles.

Learn more about electromagnetic radiation,here:

https://brainly.com/question/10759891

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what are the similarities and differences between the crocodile , sheep , and gorilla digestive system?​

Answers

Answer: Crocodile is a reptile whereas sheep and gorilla are the mammals.

Explanation:

Crocodile, sheep, and gorilla have alimentary canal in their digestive system. The urea is the common excretory waste.

Mouth is typically large in case of crocodile and comparatively small in sheep and gorilla.

In crocodile more sharp teeth are present as compared to sheep and gorilla for mastication of food and capturing the prey like fish or large animals like zebra.

The crocodile palate is more stronger than sheep and gorilla because it enable it to chew the bones of the prey.

Sea-Floor Spreading1. The arrows on the figure show the ocean floor spreading from the ridge. What are three kinds of evidence scientists have found to support this idea?
A. B. C.
I NEED HELP

Answers

Answer is

-B

Explanation

In what way do the atoms in the same row of the Periodic Table increase from left to right?

Answers

Answer:

As you move from left to right, the nucleus gains protons. This increases the positive charge of the nucleus and its attractive force on the electrons. At the same time, electrons are added to the atoms as you move from left to right across a period.

Explanation:

What is one danger associated with the use of hydrogen gas

Answers

Answer:

Topping the list of concerns is hydrogen burns. In the presence of an oxidizer -- oxygen is a good one -- hydrogen can catch fire, sometimes explosively, and it burns more easily than gasoline does.

Answer:

hydrogen burns

hope it helps

i need help on these questions please!!!
the link for the vid will be in the comments

Answers

I don’t see the video but I can still answer number 2! One example is when you boil water it evaporates as it gets hot. Another example is when you take a shower, the water on your body evaporates as you dry!

What kind of molecule can experience hydrogen bonding?
A. A nonpolar molecule containing a hydrogen atom
B. A molecule with hydrogen bonded to any nonmetal
C. A molecule with hydrogen bonded to O, N, or F
D. Any polar molecule containing a hydrogen atom

Answers

Answer:

Answer is C

Explanation:

C - A molecule with hydrogen bonded to O, N, or F

A molecule with hydrogen bonded to O, N, or F can experience hydrogen bonding. Therefore, the correct option is option C.

A hydrogen atom is attracted to another electronegative atom in a neighbouring molecule when it is connected to a strongly electronegative atom (O, N, or F). This attraction is more powerful than the usual dipole-dipole interactions between polar molecules.

The enormous electronegativity differential between hydrogen and the highly electronegative atom causes hydrogen bonding. The electronegative atom attracts the shared electrons in the covalent link, causing the hydrogen atom to gain a partial positive charge.

To know more about hydrogen bonding, here:

https://brainly.com/question/31139478

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Match the term with the definition.

Condensation
Evaporation
Sublimation
Freezing

A) A phase change from a gas to a liquid
B) A phase change from a solid to a gas
C) A phase change from a liquid to a gas
D) A phase change from a liquid to a solid

[Please Hellp!]

Answers

Condensation goes with A.

Evaporation goes with C.

Sublimation goes with B.

Freezing goes with D.

How does the suns energy contribute to the movement of water in the water cycle?

Answers

Answer:Evaporation

Explanation:

The suns heat speeds the movement of water molecules, until the molecules move fast enough that they jolt out the surface of the water individually. Overtime the water gradually evaporates into water vapor.

A gas is produced when 25 g of substance X is mixed into 60 g of solution Z in a beaker. The mass of the solution in the beaker after the reaction is 75 g. What is the mass of the gas released?
(X + Z -> gas + solution)

Answers

mass of the gas = 10 g

Further explanation

The law of conservation of mass :

In a closed / isolated system, the total mass of the substance before the reaction will be equal to the total mass of the reaction product.

Reaction

[tex]\tt X+Z\rightarrow gas+solution[/tex]

mass before reaction=mass after reaction

[tex]\tt 25+60=gas+75\\\\gas=25+60-75=10~g[/tex]

what are chiral carbon​

Answers

Answer:

A chiral carbon is a carbon bonded to four different groups ( four groups as carbon forms four bonds). The molecules formed are non superimposible on its mirror image.

the person who answered before me is correct!

______ have trees with cones.
A. temperate rainforests
B. boreal forests
C. tropical rainforests
D. temperate deciduous forests

Answers

D would be the correct answer for this

Answer:

D.

Explanation:

PLEASE HELP ASAP



A beach ball has a mass of 5g a volume of 20cm3. What is the object's density?

Answers

Answer:0,25 g/cm3 creo

Explanation:densidad es masa entre volumen

Answer:

0.25 g/cm³

Step-by-step explanation:

As we know

The density is given by

Density = Mass / Volume

Putting the values

Density = 5g / 20 cm³

Density = 0.25 g/cm³

Sorry if wrong I'm not great at math!

Drag the images into the correct category.


Contact Forces


Noncontact Forces

Answers

Answer:

Where are the categories, we need an image for reference or something to better understand the question

Mention any three ways of making salt. (please help me Asap)​

Answers

Solar Evaporation Method. This is the oldest method of salt production. ...
Rock Salt Mining Method. Morton also uses the second oldest method of producing salt – underground mining. ...
Vacuum Evaporation Method.

A large rift valley can be found along the east coast of Africa. It has been slowly widening over time, and it is now wide enough to contain many large lakes.
Which of these best explains the slow widening of this rift valley over time?
Group of answer choices

Earth's rotation

wind and water erosion

the Moon's gravitational pull

lithospheric plate movement

Answers

Answer:

wind and water erosion

Answer:

C is the answer

What mass of ethanol will release 410.0 J of heat when it cools
from 32.2°C to 19.1°C?
The specific heat of ethanol is 2.44 J/gºC.

Answers

12.8 g

(Don’t have explanation but it is right on CK-12)

What is the connection between the Bohr Model and Atomic emission spectra of elements?

Answers

Explanation:

electrons move arround nucleus in the orbit such as sun in suria system..

According to Bohr's model, an electron would absorb energy in the form of photons to get excited to a higher energy level as long as the photon's energy was equal to the energy difference between the initial and final energy levels.

Calculate the gravitational force between two objects when they are 0.75m apart each object has a mass of 5.00kg

Answers

Answer:

0.000000000666863

Explanation:

F = GMm/R²


what would happen if the
attractive forces between all of the particles
of matter on Earth were equal?

Answers

Either everything would solid (strong attractive force), liquid or gas (weaker attractive force). Everything would be the same matter

The magnitude of attractive forces between particles that compose matter determine the state of matter. Hence, if all particles of matter on earth have equal attractive forces, only a single state of matter (solid, liquid or gas) will exist on earth.

Matter exists in three states;

SolidLiquidGas

In solids, there exists the greatest magnitude of attractive forces between particles.

There are weaker inter-molecular attractive forces between liquid particles. However, inter molecular attractive  forces are almost non-existent in gases.

The reason for the existence of different states of matter on earth is difference in magnitude of inter molecular attractive forces in each state of matter.

If all particles of matter possess equal attractive forces, only one state of matter will be found on earth; either solid, liquid or gas.

Learn more; https://brainly.com/question/9007693

A photon has an energy of 2.34x10-28 J. What is its frequency?

Answers

Answer:

f = 3.53×10⁵ s⁻¹

Explanation:

Given data:

Energy of photon = 2.34×10⁻²⁸ J

Frequency = ?

Solution:

h = 6.63 ×10⁻³⁴

Formula:

E = hf

2.34×10⁻²⁸ J = 6.63 ×10⁻³⁴ × f

f = 2.34×10⁻²⁸ J /  6.63 ×10⁻³⁴ Js

f = 0.353×10⁶ s⁻¹

f = 3.53×10⁵ s⁻¹

8. The following system contains 20.0 psi each of gases A and B in the end bulbs with an evacuated bulb in the centre. Both stopcocks are opened at once. What is the new overall pressure in the system?


I literally have no idea how to even start this, I know that the answer is 13.3 psi, but I don't have any clue why or how to get there.

Answers

Answer:

13.3

Explanation:

Before opening the stopcocks you have 40psi in total.

After that, those 40psi will be divided into 3bulbs, so 40/3=13.3psi for the system.

How does the circulatory system work at the tissue level?

Answers

Answer:

Answer. Answer: The circulatory system is a network consisting of blood, blood vessels, and the heart. This network supplies tissues in the body with oxygen and other nutrients, transports hormones, and removes unnecessary waste products.

Explanation:

Answer:

ME AND YOU HAVE THE SAMEEEE USER BUT LOOK

The circulatory system is a network consisting of blood, blood vessels, and the heart. This network supplies tissues in the body with oxygen and other nutrients, transports hormones, and removes unnecessary waste products.

Explanation:

Which compound is
ionic?

Answers

Answer:

chemistry

Explanation:

Tigers and crocodiles are more closely related than tigers and sharks. Which statement about shared characteristics best supports this statement?

Answers

Answer: Crocodiles and tigers both have four legs

Explanation: Even when sharks and tigers are both meat eaters, the question is about similarities between tigers and crocodiles, so D is out. A is about crocodiles and sharks, so it's out also. B suits for sharks too, so it's out too. C is the most suitable answer, because both animals have four legs, which means that they belong to the group of quadrupede animals.

Answer:

Crocodiles and tigers both have four legs

Explanation:

Suzanne has a cat and uses a pet carrier to take her cat to the veterinarian. After a few years, the cat runs away and hides every time Suzanne gets the carrier out. Which best describes the cat's behavior? instinct reflex conditioned imprinting

Answers

Answer:

conditioned

Explanation:

The best term to describe the behavior of the cat is conditioned.

The cat has been conditioned to respond in a specific way to the pet carrier over time due to certain experiences - most likely, unpleasant ones. With repeated unpleasant experience associated with the per carrier, the cat has been conditioned to dislike/fear the pet carrier and thus, the recorded behavior.

Answer:

conditioned

Explanation:

What is the molar mass of H2SO4?

Answers

Answer:

98.08g/mol is your answer

Explanation:

hope this helps

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Congresspasses a bill.The presidentvetoes the bill.Congressoverrides thepresidentialveto.Which principle of U.S. government is illustrated in the sequence shownabove?A. Judicial review B. Checks and balances C. Popular sovereignty D. Federalism A gas is produced when 25 g of substance X is mixed into 60 g of solution Z in a beaker. The mass of the solution in the beaker after the reaction is 75 g. What is the mass of the gas released?(X + Z -> gas + solution) is -3/4 rational or irrational?is the square root of 2 rational or irrational? is 2 rational or irrational?is 3.75 rational or irrational? is 2 1/8 rational or irrational? Use the information below for the next five questions:An open organ pipe emits B (494 Hz) when the temperature is 14C. The speed of sound in air is v(331 + 0.60T)m/s, where T is the temperature in CDetermine the length of the pipe.What is the wavelength of the fundamental standing wave in the pipe?What is frequency of the fundamental standing wave in the pipe?What is the frequency in the traveling sound wave produced in the outside air?What is the wavelength in the traveling sound wave produced in the outside air?How far from the mouthpiece of the flute should the hole be that must be uncovered to play D above middle C at 294 Hz? The speed of sound in air is 343 m/s. help plzWhich of the following would be included in the U.S. gross domestic product(GDP) measure?O A. The value of Apple products made in CanadaB. The value of Levi jeans made in MalaysiaC. The value of Toyota cars made in CaliforniaD. The value of Nike shoes produced in ChinaSUBMIT One factor that determines the amount of oxygen transferred from the lungs to the blood isthe total functional surface area of the respiratory membrane.O TrueO False _compounds do not contain carbon the ratio 60 miles per hour is an example of a because it has two measurements having different units of measure How do you evaluate a division problem What resulted from the victory by the Athenians over the Persians at Marathon Given: BD is perpendicular to AC, measure DBA = 7x+6. Find x What major steps were taken in 1992 towards decentralization?will give brainiest How does the creation and evolution of our government make it the way it is today both locally, nationally, and globally? Resolver esta ecuacin How is the energy produced by respiration stored? (Googled answers will be reported) (actual answers please) Find the distance of a line given the following points. R(3, 1), W(-1, -2) pls help me yes you help The Backwoods American company in Problem 2.1 produces approximately 20,000 parkas annually. The quality management program the company implemented was able to improve the average percentage of good parkas produced by 2% each year, beginning with 83% good-quality parkas in 2012. Only about 20% of poor-quality parkas can be reworked.Total (not per parka) direct manufacturing cost is given below:Year 2003 2004 2005 2006 2007Direct Manufacturing Cost $420,900 $423,400 $424,700 $436,100 $435,500A) Compute the product yield for each of the five years.B) Using a rework cost of $12 per parka, determine the manufacturing cost per good parka for each of the five years. What you can you conclude about the improvement process? What is the 50th number in this sequence?Explain how you got your answer.5, 11, 17, 23, 29, 35, 41, What effect does a high carbon level have on the deep ocean? Why might it be important to keep an eye on the deep ocean carbon levels? What could that one number tell you about the cycle as a whole?