How do scientists measure the strength of acids and bases

Answers

Answer 1

Answer:

Scientists use something called the pH scale to measure how acidic or basic a liquid is.

Explanation:


Related Questions

Which phrase describes how dna provides evidence to support that life changes over time?

Answers

Answer:

some animals exhibit similar biological proteins

DNA contains the information which cells use to make proteins

DNA contains the coding for the formation of protein

similarity or differences in DNA show evolutionary relationships

DNA contains genes, which pass the instructions to produce and deliver proteins for the body, to synthesise

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What is limit of startfraction startroot x + 2 endroot minus 3 over x minus 7 endfraction as x approaches 7? negative one-sixth 0 one-sixth dne

Answers

The value of  limit of startfraction startroot x + 2 endroot minus 3 over x minus 7 endfraction when x approaches 7 is 1/6.

How to evaluate a function for a given value?

To evaluate a function for a particular value, plug in the value of the variable in the function.

The expression given in the problem is,

[tex]\lim_{x \to 7} \dfrac{\sqrt{(x+2)}-3}{x-7}[/tex]

Multiply the factor √(x+2)+3 above and below of fraction,

[tex]\lim_{x \to 7} \dfrac{\sqrt{(x+2)}-3}{x-7}\times\dfrac{\sqrt{(x+2)}+3}{\sqrt{(x+2)}+3}\\\lim_{x \to 7} \dfrac{\sqrt{(x+2)}^2-3^2}{(x-7)(\sqrt{(x+2)}+3)}\\\lim_{x \to 7} \dfrac{x+2-9}{(x-7)(\sqrt{(x+2)}+3)}\\\lim_{x \to 7} \dfrac{x-7}{(x-7)(\sqrt{(x+2)}+3)}\\\lim_{x \to 7} \dfrac{1}{\sqrt{(x+2)}+3)}[/tex]

The value of x tents to 7. Thus,

[tex]}\dfrac{1}{\sqrt{7+2)}+3}\\[/tex]

1/(3+3)=1/6

Thus, the value of  limit of startfraction startroot x + 2 endroot minus 3 over x minus 7 endfraction when x approaches 7 is 1/6.

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Answer:

c 1/6

Explanation:

Describe four types of packaging that prevent tampering with medicine

Answers

Answer:

Explanation:

Anti tampering is a package designed to clearly indicate that a medicine has been previously opened! Some products us foil wraps, ...

Who tells claudius and laertes about ophelia's death

Answers

Gertrude tells them if Ophelia's death

A brick is dropped from rest from a height of 4. 9 m. how long does it take the brick to reach the ground?

Answers

Answer:

1.0 s

Explanation:

What does islam have in common with judaism and christianity brainly

Answers

Answer:

They are all monotheistic faiths

Explanation:

Each believe in some sort of higher power & worship 1 god  

A number less than twice the square of the same number

Answers

Answer:

2x ^ 2 - 1

Explanation:

Mycorrhizal fungi form a mutualistic relationship with plants. with which part of the plant are they associated? a) stems b) leaves c) roots d) flowers

Answers

Mycorrhizal fungi form a mutualistic relationship with the root part of a plant and is denoted as option C.

What is Mutualism?

This is defined as ecological interaction between two or more species in which each species benefit.

An example is between land plants relying on mycorrhizal fungi for phosphorus, while the fungus receives nutrients formed by the plant in return.

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Angelo has $700,000 he wants to save. if the fdic insurance limit per depositor, per bank, is $250,000, which of these ways of distributing his money between three banks will guarantee that all of his money is insured?

Answers

The amount of $700,000 is advisable to be deposited in three different banks for safety of Angelo's money.

What is a bank deposit?

A deposit of money made with a bank to earn returns in the form of interest on such money is known as a bank deposit. The banks insure such deposits up to a certain limit, say $250,000.

Angelo can distribute his money into three different banks, with each deposit not exceeding $250,000 to ensure the safety of his bank deposits.

Hence, the way to insure the safety of Angelo's money via bank deposit is aforementioned.

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Which situations result in an increase in the national debt? select the two correct answers.

Answers

The two situations that result in an increase in the national debt include, an increase in intergovernmental debt and federal budget deficits.

What is a national debt?

A national debt can be defined as the total sum of debts owed by the government of a nation.

Situations that results to an increase in the national debt include:

federal budget deficitsborrowing from the Social Security Trust Fundlow interest rates promoting increased investmentraised debt ceilingsAn increase in intergovernmental debt, etc

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A current is induced in a wire by moving the wire through a magnetic field

Answers

Answer:

true

Explanation:

Which checking account would be best for nathan? account a account b account c account d

Answers

Answer:

Account Bank D

How does the antagonist move the plot forward in this excerpt? nagaina moves the plot forward by running to the rat-hole, where rikki-tikki will destroy her. nagaina moves the plot forward by rustling her tail and turning her head round and round. rikki-tikki moves the plot forward by jumping up and down to confuse nagaina in their fight. rikki-tikki moves the plot forward by giving the egg to nagaina, thereby forcing her to run away.

Answers

Answer:

B

Explanation:

I’m smart

Answer:

a

Explanation:

The recommended percent p (in decimal form) of nitrogen (by volume) in the air that a diver breathes is given by p=105.07d+33, where d is the depth (in feet) of the diver. find the depth when the air contains 47% recommended nitrogen by (a) solving an equation, and (b) using the inverse of the function. round to the nearest tenth.

Answers

The depth of the diver when the air contains 47% recommended nitrogen is -0.3 ft

To answer the question, we need to know what an equation is.

What is an equation?

An equation is a mathematical function that shows the relationship between two variables.

Given that he recommended percent p (in decimal form) of nitrogen (by volume) in the air that a diver breathes is given by p = 105.07d + 33, where d is the depth (in feet) of the diver.

Solving for the depth by solving the equation

To find the depth when the air contains 47% recommended nitrogen, we solve the equation with p = 47%

So, p = 105.07d + 33

47% = 105.07d + 33

0.47 = 105.07d + 33

0.47 - 33 = 105.07d

-32.53 = 105.07d

d = -32.53/105.07

d = -0.3096 ft

d ≅ -0.3 ft

Solving for the depth using the inverse function

Since p = 105.07d + 33

Making d subject of the formula, we have

d = (p - 33)/105.07

Substituting p = 47% = 0.47, we have

d = (0.47 - 33)/105.07

d = -32.53/105.07

d = -0.3096 ft

d ≅ -0.3 ft

So, the depth of the diver when the air contains 47% recommended nitrogen is -0.3 ft

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The shortest sides of two similar polygons have lengths in the ratio 2:5. the perimeter of the smaller polygon is 20. the perimeter of the larger polygon is 125 100 50

Answers

Answer:

A similar triangle has the same ratio on every side, so that means the perimeter has the same ratio as well. Set up the proportion: 2/5 = 20/xmultiply the means and extremes to get2x = 100divide both sides by 2x = 50The perimeter of the larger polygon is 50

Explanation:

Not sure if this is right but hope this helped!

If the latin root "port" means "to carry," then the word "transport" means to walk across. to carry across. to cross over. to cross out.

Answers

Answer:

B: To carry across

Explanation:

I looked it up in the dictionary and I got it right on an edge exam.

Answer:

B

Explanation:

Compare public debt to intragovernmental debt brainly

Answers

The difference is that public debt is owed to creditors while intragovernmental debt is owed to another part of government.

How to Classify Debts?

The public debt is defined as the amount of money that a government owes to creditors. Now, this debt held by the public is a large portion of the national debt.

However, Intragovernmental debt is defined as debt that one part of the government owes to another part of the government. Generally, this debt  is held in government trust funds, such as the Social Security trust funds.

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A 5 n force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s. the time for the collision is _____ seconds.

Answers

The time for the collision is 3.6S.

What is collision?

The collision is an encounter between particles resulting in exchange or transformation of energy.

According to the question,

Force,

F = 5 N

Mass,

m = 3 kg

Velocity,

v₁ = 9 m/s and v₂ = 3 m/s

As we know,

F=m*(v/t)

so,

5=3*(9-3/t)

T=3*6/5

T=18/5

hence, the time for the collision is

T= 3.6S.

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Enter the correct 4 digit code (no spaces)

Answers

Answer:

a 5

b 9

c 3

d 4

Explanation:

if you were to substitute in these numbers it would be valid.

3+2=5

1+3=4

mabe 4+5 =9

Leadership is a talent that cannot be learned. please select the best answer from the choices provided t f

Answers

Answer: false bcuz anyone can learn and develop good leadership :3

Answer:

The statement is false because anyone can learn good leadership skills.

Explanation:

Leadership is defined as a skill, not a talent. Through repetition and practice, anyone can learn to become an effective leader.

Which quotation from the passage provides evidence of the implied claim

Answers

Answer:

a, we mutually pledge to each other our lives, our fortunes, and out sacred honor

A manager drew this box-and-whisker plot to represent the ages of her 23 employees. every employee is a different age.

Answers

Answer:

Explanation:

About 5 employees have ages that are older than 54 years.

What is a box plot?

A box plot provides the summary of a data using the five number summary that is minimum, lower quartile, median, upper quartile and maximum.

From the diagram, the third quartile is 54 years. Hence 75% of the employees are between 35 to 57 years.

25% are older than 54 years, hence:

Employers older than 54 years = 25% of 23 employees = 5.75

About 5 employees have ages that are older than 54 years.

The experimental probability of rolling an odd number is %, which is % more than the theoretical probability.

Answers

Of the twenty times in this experiment the following are prime (3,5,2,7,3,7,2,2,7,3,3,5) or 12 of the twenty

12/20 = 6/10  = 60%

So 60% is the experimental probabilty.

The theoretical probability given that there are four prime numbers (2,3,5,7) out of 8 on the dice should be 50%  because 1/2 of the numbers are prime.

The experimental probability is 10% more than the theoretical probability

60% - 50% = 10%Answer:

Explanation:

The water from hot springs near the ebeko volcano in the pacific ocean has a very low ph. what does a low ph indicate about the water?

Answers

The water of the hot spring near ebeko volcano in the Pacific Ocean has low pH, which means that the water is acidic. Acids have low pH.

What is pH?

pH is the measurement of acidic and alkaline of any liquid. The acids have low pH than 7 and bases have high pH than 7.

Low pH water will corrode or dissolve metals and other substance in it.

Thus, the water of the hot spring near ebeko volcano in the Pacific Ocean has low pH, which means that the water is acidic. Acids have low pH.

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I've already ruined my brand-new jeans, and i've only had them on for three hour!

Answers

man that's rough buddy

Blue collar workers typically receive __________ wages. a. commissioned b. hourly c. part-time d. salaried please select the best answer from the choices provided a b c d

Answers

The way blue collar workers typically receive their wages is; B: Hourly

How to Identify types of wages?

There are different ways of paying wages to workers. Wages is the renumeration due to a worker for a job done.

Now, the wages could be paid hourly, daily, weekly, monthly or any other agreed periods.

However, while white collar workers are usually paid monthly, blue collar workers are usually paid hourly.

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Answer: B. Hourly

Explanation: Blue collar workers typically receive hourly wages.

On a national level, the american public was the violence faced by the civil rights protestors in birmingham.

Answers

Answer:

outraged.

Explanation:

they had to be outraged and I would be to.

On a national level the American public was outraged by the violence faced by the civil rights protestors in Birmingham.

What was Birmingham Campaign?

One of the most important campaigns of the civil rights movement of the time was Project C or the Birmingham Campaign of the Spring of 1963. Protesters organized many marches and boycotts in downtown Birmingham such as in the City Hall.

People were protesting in a non-violent way against segregation laws when they where met by the police with violent use of the force with dogs and high-pressure fire hoses. On a national level. The American public was outraged by the violence faced by the civil rights protestors in Birmingham.

The Birmingham campaign, or Birmingham movement, was a movement founded in early 1963 by the Southern Christian Leadership Conference to pay application to the unification efforts of African Americans in Birmingham, Alabama. The civil rights movement was an unusual journey for balance.

Therefore, On a national level the American public was outraged by the violence faced by the civil rights protestors in Birmingham.

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Tim wants to buy a new subcompact car, which costs $20,000. he will pay a down payment of 10 percent and finance the rest at 12 percent. if he finances the vehicle over 5 years, how much will his total finance charge be?

Answers

Based on the calculations, Tim's total finance charge would be equal to $12,048.

What is total finance charge?

The total finance charge can be defined as the amount of interest and other expenses which a customer would have to pay a lender, for borrowing an amount of money (credit).

In this scenario, Tim's monthly payment would be equal to $800.80 and after five (5) years, the total amount of money he'll pay is given by:

Total amount = $800.80 × 12 × 5

Total amount = $48,048.

For the total finance charge, we have:

Total finance charge = Total amount - Principal

Total finance charge = 48,048 - 36,000

Total finance charge = $12,048.

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Answer:

its in the 6 thousands !!

Explanation:

Not too sure

Alice thinks that she is the president's illegitimate daughter

Answers

Answer:

she needs to get a DNA test and she can find out if they are a match if they are then she's legit if not a match then shes correct

Explaination

DNA test

Of the 318 sophomores, 140 are taking algebra 2 and 102 are taking chemistry. of those that are taking chemistry, 76 are not taking algebra 2. if a sophomore is chosen at random, find the probability that they are taking algebra 2, if it is known that they take chemistry.

Answers

The probability that the sophomores are taking algebra 2 is equal to 0.63.

How to find the probability?

In order to determine the probability that the sophomores are taking algebra 2, we would calculate the number of sophomores that takes algebra 2 but not chemistry and those that do not take chemistry.

For algebra 2 but not chemistry, we have:

Algebra 2 but not chemistry = 140 - 76

Algebra 2 but not chemistry = 64.

For those not taking chemistry, we have:

Not taking chemistry = 318 - 102

Not taking chemistry = 216.

Now, we can find the probability that the sophomores are taking algebra 2:

P(A) = 64/102

P(A) = 32/51

P(A) = 0.63.

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