Physics Middle School

What is the correct definition of pH?

how basic a solution is


the concentration of potassium ions in solution


how acidic a solution is


the concentration of hydrogen ions in solution

Answers

Answer 1

Answer:

here is your answer..

Explanation:

the concentration of hydrogen ions in solution

Answer 2

Hydrogen ion concentration in a solution is called pH so, option 'D' is the correct answer.

What is pH ?

The concentration of hydrogen ions in a solution is measured by its pH, which is a measure of its acidity. Pure water splits into hydrogen and hydroxyl (OH-) ions in roughly equal amounts.

The word pH denotes the concentration of hydrogen ions in a solution, such as what percentage of a solution contains hydrogen ions. The pH scale ranges from 1 to 14, with 1 being the most acidic and 14 being the most alkaline.

Find out more information about 'alkaline'.

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Related Questions

And observer reviews for identical objects that are traveling at speed close to the speed of light in their legs be used to rank the objects according to their speeds A. No the Lankes of the four objects should be the same regardless of the speed B. Yes the shortest object is traveling the fastest C. Yes the longest object is traveling the fastest D. No the length of each object demands on the frame of reference of the observer

Answers

Answer:

C :)

Explanation:

1. Sketch a picture of the components of a galaxy. Write the name of our galaxy as the title of your drawing.2. Investigation3. Ervin is a current 5th grade student. One weekend he went on a trip to the beach with his family. After arriving at the beach, his mother put sunscreen on him to protect him from the Sun. Ervin and his older brother decided to go swimming in the ocean. While swimming his brother pointed out how large the Sun appeared. Later in the day, the Sun was covered up by dark clouds. When the Sun got covered, Ervin decided to stop swimming.At school on Monday, Ervin’s class was learning about the Sun. Ms. Chabert, his teacher, posed 3 questions to the class. Ervin was excited because he was able to use what he learned about the Sun at the beach to answer each question correctly. Use what YOU know about the Sun to answer the questions that Ervin’s teacher posed to the class. Answer in complete sentences please.A. Is the Sun a star?B. Why does the Sun appear large and bright?C. Is the Sun the largest star in the sky?D. What types of energy does the Sun give off?E. How does energy help us on a daily basis?

Answers

Square base. Would be the answer

Which effect is created when two sound waves that are close in pitch
interact?
O A. Echoes
O B. Loudness
C. Beats
O D. Intensity

Answers

Answer:

C. Beats

Explanation:

When waves are interfering with each other, the sound is louder in some places and softer in others. As a result, we hear pulses or beats in the sound.

Answer:

beats

Explanation:

got it right

Use physical properties to explain why house keys usually are made of metal rather than glass, wood, or fabric.​

Answers

Answer:

because if not metal than other things like glass wood or fabric would break or not be suitable for the key hole , physical properties of a metal key : luster, good thermal and electrical conductivity, and the capability of being permanently shaped or deformed at room temperature.

Which of the following is true of an isothermal process?
O A. AU = 0
B. Volume is constant.
C. Temperature is constant.
O D. W = 0

Which of the following is true of an isothermal process?O A. AU = 0B. Volume is constant.C. Temperature

Answers

Answer:

Isothermal process = Temperature is constant

Explanation:

As the name implies, iso means same and thermal is related to temperature. In isothermal process, the temperature of the system remains constant throughout. The exchange of heat takes place such that the thermal equilibrium is maintained.Hence, the correct option is (c) " temperature is constant".

Answer:

A, C, & D

Explanation:

A. ΔU = 0

C. Temperature is constant

D. W = Q

a p e .x approved right answers

A student builds a series circuit using three 1-ohm resistors. The current in the circuit is 1.5 amps. What is the voltage drop across each resistor?
(no explanation is needed! i just need the answer)

Answers

ANSWER:

Charge flows together through the external circuit at a rate that is everywhere the same. The current is no greater at one location as it is at another location. The actual amount of current varies inversely with the amount of overall resistance. There is a clear relationship between the resistance of the individual resistors and the overall resistance of the collection of resistors. As far as the battery that is pumping the charge is concerned, the presence of two 6-Ω ;resistors in series would be equivalent to having one 12-Ω resistor in the circuit. The presence of three 6-Ω resistors in series would be equivalent to having one 18-Ω resistor in the circuit. And the presence of four 6-Ω resistors in series would be equivalent to having one 24-Ω resistor in the circuit.

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which kelp removes and keeps co2 out of the atmosphere

Answers

Answer:

planting and managing forests

planting and managing forests

Foliation occurs when minerals are flattened by heat and pressure. this results in a layered or banded texture. What type of rock do you think is foliated?

Answers

Visible silicate minerals split into dark and light bands or lineations in a metamorphic foliation known as gneissic banding. Typically coarse and frequently folded, these grains. Gneiss is the name for a rock with this texture.

Foliated Metamorphic Rocks:
Some kinds of metamorphic rocks -- granite gneiss and biotite schist are two examples -- are strongly banded or foliated. (Foliated means the parallel arrangement of certain mineral grains that gives the rock a striped appearance.)

answer question 2 please

answer question 2 please

Answers

Answer: The greater the temperature difference the greater the rate at which transfers

list both types of energy before skydiver jumps out of the plane and as the sky diver is diving.

list both types of energy before skydiver jumps out of the plane and as the sky diver is diving.

Answers

Answer : This is an example of Kenitic and potential energy

Explanation:

kenitic: the act of moving or motion

potential: not. moving YET

he was not moving when he was on the plane and had potential energy cause he wasn't getting pulled down and kenitic energy was when he was getting pulled down from force of gravity when he was getting pulled to the ground when he was skydiving

Kinetic and potential

What is friction? Help plsss. Most accurate one will get brainliest!

Answers

Answer:

Explanation:

Friction is a force which opposes the relative motion of two objects in contact.

Answer: The resistance that one surface or object encounters when moving over another

Explanation: The action of one surface or object rubbing against one another.

Example: Sally rubbed the two sticks TOGETHER that is an example of friction.

Which of the following is not true?

a. Some fungi can be used to make medicines.
b. Fungi absorb nutrients from the things around them
c. Kingdom Fungi includes trees and vegetables
d. Fungi are important for their decomposing functions.

Answers

Answer:

C

Explanation:

Kingdom Fungi does not include trees and vegetables. It includes mushrooms, mildew, mold, rust, and I think yeast.

the correct Answer is c

the acceleration of a car is 5m/s² . what is the elapsed time for it to accelerate from 10 m/s to 50 m/s

show work.

Answers

The amount of time is equal to the amount of change in velocity divided by acceleration. 40 divided by 5 equals 8s

Answer:

Time taken to accelerate is 8s.

Explanation:

\(v=u+at\)
\(50=10+5t\)
t=8

Imagine your teacher asks you to design an experiment where you test the effect of temperature on the growth of a plant. You have 5 plants that you plant and place in different temperatures around the room. What would your variables be and what would your constants be.
pls do it dont do it if u dont know
dont do it for the points

Answers

Answer:

the variable would be the temperatuer. and the water u give it would be constant.

Explanation:

the same amount of water go's to all of the plant's . and u cange the variable  and your changing the temp .

Well water would be the constant and heat or temperature would be the variable. Hope this helped!!

Why is it important for a peer to review your writing, in addition to reviewing it yourself?You still have the ideas in your head, so you may not notice when they did not make it onto the page.
You will ignore all of the problems in your report because you won’t want to fix the problems.
All of the above
A peer has a better understanding of your topic than you do and can find mistakes.

Answers

Answer:All of the above

Explanation:

All of the above because they can see the mistakes you can’t and can shed light on a new perspective hope this helps

The graph shows the motion of a car. Which segment shows that the car is slowing down? A, B, C, or D Graph:

The graph shows the motion of a car. Which segment shows that the car is slowing down? A, B, C, or D

Answers

The answer is C because the line is down.

C segment of the graph shows that the car is slowing down.

What is velocity?

The rate at which a body's displacement changes in relation to time is known as its velocity. Velocity is a vector quantity with both magnitude and direction. SI unit of velocity is meter/second.

In the given graph, Velocity of varying with time. When the car is slowing down, the slope of the graph is negative in this region.

According to figure: segment C and segment E has negative slope.   Hence, according to the option: C segment of the graph shows that the car is slowing down.

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Charlotte Hornets NBA BASKETBALL TEAM

Answers

Answer:

I've heard both good and bad things about them! I'm going to go educate myself now

Explanation:

:)

Answer:

How good are they?

Explanation:

Mathew is simulating forces on a simple machine. He runs four tests as shown. Which test illustrates a balanced net force?

Mathew is simulating forces on a simple machine. He runs four tests as shown. Which test illustrates

Answers

Answer:

test 4

Explanation:

equal amount of force upward and downward

Answer: #4
Explain: equal amount of force upward and downward.

Your welcome

how does a free fall drop ride work with newtons 3rd law?

Answers

Answer:

A falling object is in free fall when the only force acting on the force is gravity.

Explanation:

Because the only force acting on you is gravity, the scale no longer is pushing your cart up. Or in other words - your no longer pushing down onto the scale.

A free fall drop ride works with newtons 3rd law as it tells us about the force of gravitation

For the effective radiation of heat from an electric heater. Why should we polish it to shine but not keep it clean or paint it green or black?

Answers

Answer:

Polish it to shine

Explanation:

Polish it so it can layer shine

If someone lifts less weight than you, explain why that person could be considered more powerful.

Answers

Answer:

there faster

Explanation:

stronger,wiser,better,THEY ARE BETTTEEEEEEEERRRRRRRR

Answer:

they're so strong that they don't need to lift heavy weights anymore because they're experts (slay lol). so they just have a simple daily workout.

How does the Wikileaks scenario show the negative power of the media?
A. The media compromised national security.
B. The media released popular information.
C. The media got someone in trouble.
D. The media can break the law.

Answers

Answer:

B. The media released popular information.

Explanation:

We do not share the power in our media.

Bbbbbbbbbbbbbbbbbbbbbbbbbb

help plz i need help as soon as posible i cand do physics

help plz i need help as soon as posible i cand do physics

Answers

SamE
It’s like so hard

how does evaporation happen on a stove
(dont mind the subject btw)

Answers

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer: Evaporation happens by heat being transferred to the pot, then the pot transfering the heat to the water, which caused the water to vibrate more, eventually turning it into water vapor, which is how evaporation happens on the stove.

Explanation:

I hope this helped!

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It vibrates the water which turn the water into water vapor

If a person attempts to read their e-mail while they are riding the bus, they are _______.
a.
Combining tasks
b.
Multitasking
c.
Sequential tasking
d.
Cleaving tasks

Answers

Answer:

A

Explanation:

Answer:

A

Explanation:

just took the test 4 mins ago

What two gases in the atmosphere do animals and plants need to breathe and grow?

Answers

Answer: Explanation:

Plants and animals each produce the gases that the other needs to live. Plants need carbon dioxide—people and other animals exhale carbon dioxide as a waste product. People and other animals need oxygen—plants produce oxygen during an important process called photosynthesis, which turns the sun's energy into nutrients.

Carbon Dioxide for plants and Oxygen for animals

Soil classification is partially determined by the presence of organic material, such as humus. Which would have more humus—a desert or a forest—and why? Check all that apply.

a forest because it has more trees to provide plant litter
a desert because it has soil with a larger particle size
a forest because it has more animals to mix the soil
a forest because the trees prevent rain from reaching the soil
a desert because the dry air decomposes plant litter

Soil classification is partially determined by the presence of organic material, such as humus. Which

Answers

a desert because it has soil with a larger particle size. Hence option B is correct. Hence option B is correct.

What is Dessert ?

Dessert is the final course of a meal. The dish includes sweet snacks like sweets and sometimes a beverage like dessert wine or liqueur. There is no tradition of a dessert course to finish a dinner in several regions of the world, such as Greece and West Africa, and in most parts of China.

Desserts include biscuits, cakes, cookies, custards, gelatins, ice creams, pastries, pies, puddings, macaroons, sweet soups, tarts, and fruit salad. Fruit is also typically seen in dessert courses due to its inherent sweetness. Desserts are made in certain cultures by sweetening savoury dishes. In the 18th and 19th centuries, when refined sugar and wheat were widely available and ostentation and artifice were desired, the dessert course achieved its pinnacle in the feasts of the European courts. Numerous creams, tarts, fruits, cakes, pastries, puddings, jellies, and meringues were given on tables decorated with flowers and architectural fancies made of sugar and pastry.

Hence option B is correct.

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Answer: The answers are a & c.

Explanation: I just did it

In a warehouse, the workers sometimes slide boxes along the floor to move them. Two boxes were sliding toward each other and crashed. The crash caused both boxes to change speed. Based on the information in the diagram, which statement is correct? In your answer, explain what the forces were like and why the boxes changed speed.

Box 1 has more mass than Box 2.
Box 1 and Box 2 are the same mass.
Box 1 has less mass than Box 2

Answers

Answer:

Box 1 and Box 2 are the same mass It caused both to change speed because they have both the same mass.

Explanation:

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List 6 Examples from the Movie "Home Alone" that follow all three of Issac Newtons Laws:
1. (list 6 examples)
2. (list 6 examples)
3. (list 7 examples)
PLEASE HELP ME WITH THIS I WILL GIVE BRAINLIEST!!!

Answers

Answer:

is this already to late to answer?

Explanation:

Where is energy coming from to move the propeller in this image?

a wind turbine with three long propeller blades
Public Domain

Clouds
Grass
Rocks
Wind

Answers

A wind turbine is super tall with three long propeller blades so WIND will generate it.
Wind it uses wind to move it
Other Questions
Find x , y ( 10 points) I have never felt able to describe my emotional reaction when I first came face to face with indisputable evidence of Nazi brutality and ruthless disregard of every shred of decency...I felt it my duty to be in a position from then on to testify at first-hand about these things in case there ever grew up at home the belief or assumption that the stories of Nazi brutality were just propaganda.General Dwight Eisenhower, letter to Chief of Staff George Marshall, 19454.In the excerpt Eisenhower describes his experience when the Allied troopsA organized the Nuremburg Trials.B landed on the Normandy beaches.C saw the devastation of the blitzkrieg in London. D arrived to liberate the Nazi concentration camps. The Great DebateOn September 26, 1960, seventy-four million viewers tuned in to watch a historic duel: the first televised presidential debate. The candidates were a young, relatively unknown Massachusetts senator named John F. Kennedy and the more experienced incumbent vice president, Richard M. Nixon. Although historians note that the candidates were equally skilled speakers, the differences in their televised performances were considerable. Viewers thought that Nixon, who had recently been hospitalized for an injury, appeared sallow and sweaty; by contrast, Kennedy looked handsome and relaxed. As Kennedy spoke, he fixed his gaze on the camera to address at-home viewers. On the other hand, Nixon directed his responses to reporters off camera, which made him seem cold and distant to television viewers. The differences in their appearances had a dramatic effect. Some people even recall that when they listened to the debate on the radio, they thought that Nixon had won, whereas when they saw clips on TV, they thought Kennedy was the better debater.What is the main idea of the passage? Two level sections of 40-m stations with center heights of 1.32 and 1.59 m in cut, base width 15 m, side slopes 1-1/2:1. Part A Compute Ve for the data given Express your answer to five significant figures. Ve m3 Which of the following assignments would be acceptable for a Florida real estate licensee who does not represent themselves as an appraiser and follows the Uniform Standards of Professional Appraisal Practice (USPAP)?(a) An assignment to give an estimate of value for an attorney in a divorce case.(b) An assignment to appraise a single family home for a VA loan.(c) An assignment to value a condominium for an FHA loan.(d) An assignment to appraise a time share unit for which a loan is being obtained from a Federally insured institution. I think the answer is A. 95, but I am not sure. Given that the following rhombus, find mGKH and mJFK if we know that mGFJ = 98 The sum of two consecutive numbers isthirty-five, what are the numbers? Which ones are functions, not a function, not enough information? Consider the following double integral 1 = $***** dy dr. dx. By reversing the order of integration of 1, we obtain: 1 = $ L94-ya dx dy 1 = $**** dx dy This option This option : - fi$*** dx dy None of how many hydrogen atoms are in one mole of caffeine If a charged particle is moving, it will have both and electric and magnetic field moving with it. true or false A hardware device that is used to store data and programs in a computer system is a(n)___input deviceoutput devicestorage deviceprocessing devicescanning device Identify the product(s) of the following reaction:H22 CO33 H22 O + CO22 AH22 CO33 BH22 and O33 CH22 O and CO22 DO and O22 The population of a dying town follows the exponential law: p(t) = P0e^ktwhere P0and k are constants (Or p(t) = P0b^twhere P0and b are constants.If the population was 10,000 in 2016 and 9,500 in 2018 then predict the population in 2023.Round your answer to the nearest whole number. Rapid population growth can result in large increases in the infant mortality rate if there is WILL GIVE BRILLIANTIEST!A small town voted to decide if a road should be expanded from two lanes to four lanes. The two-way table below shows theresults of the vote.FavorOpposeNeutralTotal3312469145153696Age18-25Age26-40Age40+Total102924638856106250Which correlation does the two-way table suggest?A Voters age 40 and over are least likely to favor road expansion.B. The majority of the voters are most likely to favor road expansionc. Voters between the ages of 26 and 40 are most likely to oppose road expansionD.Voters between the ages of 18 and 25 are least likely to favor road expansion Read the excerpt from the great gatsby. it was a matter of chance that i should have rented a house in one of the strangest communities in north america. it was on that slender riotous island which extends itself due east of new york"and where there are, among other natural curiosities, two unusual formations of land. which words from the passage are most indicative of the types of people the narrator will encounter in the novel? house and communities strangest and unusual matter and chance natural and formations Marco paid $36.89 for 8.6 gallons of gas. What is the price per gallon? all of the following criteria serve as a valid basis for identifying potential projects in most organizations except: