The correct statement and conclusion about sodium hydroxide (NaOH) is: The negative log of the concentration of [tex]OH^-[/tex] ions is 12, so Sodium hydroxide is a strong base.
In Chemistry, pH literally means the power of hydrogen ions and it can be defined as a measure of the molar concentration of hydrogen ions in a particular solution, thereby, specifying the following;
The acidity of a chemical solution.The neutrality of a chemical solution.The basicity (alkanility) of a chemical solution.On a related note, a pH scale is a scale that is used to measure the concentration of hydrogen ions in both acidic and basic (alkaline) solutions.
Generally, a pH scale is calibrated with a standard measurement that ranges from 0 to 14.
On a pH scale, a solution with a pH of 7 is neutral, a solution with a pH below 7 is acidic and a solution is considered to be basic (alkaline) when its pH is above 7.
In this experiment, a small amount of sodium hydroxide is added to water, to give a pH of 12 when the chemical reaction reaches equilibrium.
Hence, the negative log of the concentration of [tex]OH^-[/tex] ions is 12, so Sodium hydroxide is a strong base.
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Answer:
The negative log of the concentration of OH– ions is 2. Sodium hydroxide is a strong base.
Which pair of points should be used to find the line of best-fit for the scatterplot?. On a graph, a trend line would go through points K and M. J and L J and M K and L K and M
Answer: it’s D I did the quiz
Explanation:
Answer: Enjoy your A <3
Explanation:
rank the following in terms of increasing boiling point:
What is seen in the image below? A sketch by Leonardo da Vinci of a platform with wires attached to circular blades in the sky.
Answer:
Blades in the sky known as ¨The Helicopter¨
Explanation:
Just took the test got 100%
Answer: Blades in the sky known as ¨The Helicopter¨
Explanation: got 100
how did the balance of power between spain and the united states
Answer:
Spanish influence in the Western Hemisphere declined.
U.S. influence in the Eastern Hemisphere increased.
Explanation:
A diagram of chloroplast stroma and thylakoid lumen showing chemical energy, ferredoxin, ferredoxin-N A D p reductase, A D P synthase, and oxygen-evolving complex. Photosynthesis converts light energy to chemical energy. Which molecules are the end product of this transformation of energy in this reaction? ADP and NADPH ADP and NADP ATP and NADPH ATP and NADP
Answer: c
ATP and NADPH
Explanation:
Chloroplast stromal and thylakoid lumen showing chemical energy, ferredoxin ATP, and NADPH. Thus, option (C) is correct.
What is chemical energy?Chemical energy is the energy of chemical substances that are released when they experience a chemical reaction and transubstantiate into other substances. Some examples of storage media for chemical energy include batteries, food, and gasoline.
Stromal, in botany, refers to the colorless fluid surrounding the gran within the chloroplast. Within the stoma are gran, the sub-organelles or daughter cells, Chloroplast stromal and thylakoid lumen showing chemical energy, ferredoxin ATP, and NADPH. A diagram of chloroplast stromal and thylakoid lumen showing chemical energy vigor, ferredoxin, ferredoxin-N A D p reductase, A D P synthase,
Therefore, Thus option (C) is correct
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adelaide sorted mineral samples into two groups: dull and shiny. which of the following properties did adelaide use to separate mineral samples into group?
Answer:
B. luster
Explanation:
This is about physical properties used in classification of minerals.
The four basic properties used to identify minerals from the ground are;
1) Luster; this is a property which shows how well the reflection occurs when a mineral is exposed to light.
2)color; different minerals have different colors and this is a good property to identify minerals.
3) diaphaneity; this is defined as the ability of a mineral to have light transmitted through it.
4) shape: this is also a good property to identify minerals.
There are other properties used to identify minerals like streak which is the colour of the powdered form of a mineral, hardness, fracture e.t.c.
Now,we want to classify the mineral samples as either dull or shiny. For a mineral to be dull, it means it will not be able to reflect light properly whereas if it is shiny, light will easily be reflected from it.
The only property of minerals in the options that corresponds with shiny or dull is the Luster property.
Thus, option B is correct.
Why are cause and effect graphic organizers useful? a. Because they show relationships among events c. Because they tell us what will happen in the future b. Because they identify when time began d. All of these
Answer:
D All of the above. Timeliness, relationship of events, and predictions can All be shown with a cause and effect organizer.
The reason why cause and effect graphic organizers are useful is because of: D. All of these.
What is a cause and effect graphic organizer?A cause and effect graphic organizer can be defined as a type of chart which highlights and shows the relationship between two things (events) in which an occurrence of one (cause) typically leads to the occurrence of another (effect).
In this context, the reason why cause and effect graphic organizers are useful is because of:
They show relationships among events. They tell us what will happen in the future. They identify when time began.Read more on cause and effect here: https://brainly.com/question/25680753
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Read the excerpt from the journals of Lewis and Clark, then answer the question. Based on what you’ve learned so far, why did Lewis and Clark hand out different-sized medals? Because they owed one chief more than the other. Because some chiefs had given them more valuable gifts first Because they wanted to indicate that some chiefs were more powerful in their eyes than others
Answer: C I just did it.
Explanation: I got it correct
Because they wanted to indicate that some chiefs were more powerful in their eyes than others is the correct option for journal.
What is a journal?
A general journal is a daybook or subsidiary journal used to record transactions connected to opening stock, depreciation, adjustment entries, accounting errors, etc.
Journal vouchers, copies of management reports, and invoices are all examples of source materials for general journal entries.
Since transactions were first recorded in a journal before being physically posted to accounts in the general ledger or a subsidiary ledger, journals are prime entry books and can also be referred to as books of original entry.
In it, debiting one or more accounts and crediting another one or more accounts with the same sum total is used to record double entry accounting entries.
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Angelique makes beaded jewelry. The graph below shows the number of beads on varying cord lengths. Jewelry A graph has cord length (inches) on the x-axis and number of beads on the y-axis. A line has a regression equation of y = 2.52 x 1.61. A necklace contains 88 beads. Based on the information above, which is the best estimate for the cord length? 21 inches 26 inches 34 inches 36 inches
Answer:
c. 34
Explanation:
I just did the test and got it right
Answer:
The answer is c. 34 hope this helps...
Explanation:
which key argument is conveyed in the declaration of independence?
Answer:
The Declaration of Independence included these three major ideas: People have certain Inalienable Rights including Life, Liberty and Pursuit of Happiness. All Men are created equal. Individuals have a civic duty to defend these rights for themselves and others.
Explanation:
the half life of radium-226 is 1600 years. after how many half-lives would 25% of the radium-226 remain?
Answer:
400
Explanation:
list four physical properties of metal, nonmetals and metalloids
Answer:
hope it helps................
The ear’s neural tissue lies on the __________, which forms the floor of the cochlea. A. ossicle B. auditory canal C. basilar membrane D. auditory nerve
Answer:
What is C. basilar membrane
Explanation:
The ear's neural tissue lies on the basilar membrane, which forms the floor of the cochlea.
Have a happy day! <3Miss Hawaii
Answer:
C. basilar membrane
Explanation:
Took the test and got it right.
Wealthy merchants such as Cosimo de’ Medici ruled Italian churches. suburban areas. city-states. rural areas.
Answer:
City States.
Explanation:
Wealthy merchants such as Cosimo de’ Medici ruled Italian churches to city states.
What is City states?Ancient Greece had a polis, or city-state, form of government. Each city-state was set up with an urban core and the countryside surrounding it. In a polis, the city was enclosed by protective outside walls and included public areas with temples and governmental structures.
The summit of a hill, or acropolis, was frequently where the temples and political structures were erected. The well-known Parthenon in Athens is an iconic example of a monument that was the focal point of an ancient acropolis.
A temple dedicated to the goddess Athena was called the Parthenon. Since the city served as the epicenter of trade, commerce, culture, and political action, the bulk of people in a polis lived there.
Therefore, Wealthy merchants such as Cosimo de’ Medici ruled Italian churches to city states.
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a pie is cut so that one piece, which is one quarter of the pie, is twice as large as each of the other pieces. into how many pieces is the pie cut?
Answer:7
Explanation: pie
I was a Portuguese nobleman who left Portugal in 1497, sailed around Africa, and reached India in May 1498. Who was I? Question 1 options: Pedro Cabral Vasco da Gama Ferdinand Magellan
Answer:
vascoda do gama
Explanation:
hope it helps :P
Maria is considering buying a television and a refrigerator for her new apartment. Her monthly budget is $200. Maria will pay an extra if she uses the rent-to-own program to buy the television, rather than waiting until she saves up enough money to pay cash for it. If she saves her money and pays cash, she can purchase a refrigerator in .
Answer:
Explanation:
Maria will pay an extra amount of $924 to &951 to buy the television, rather than waiting until she saves up enough money to pay cash for it.
If Maria saves her money and pays cash, she can own a refrigerator in 4 months.
There are 52.3 weeks in a year, and depending on when she buys it, she can manage to make 52 or 53 payments that would make a total of $1404 a year or $1431 a year, if paying cash is $480, the difference would be either $924 or $951.
The refrigerator costs $800 and with the budget, she has a month, she can buy one after 4 months.
4 months at $200 a month= $800
Answer:
1. $924
2. 4 months
Explanation:
Here are the answers, I'm not gonna leave some long boring answer, when I know what ya'll need.
kendra compares the unit rates for the following four boxes of cereal so she can choose the one that is the best value. which box of cereal should she choose?
Answer:cereal is 4
Explanation: It is 4 due to the units collide togehter.
How are the federal executive branch and most state executive branches similar? Both have department heads that manage government agencies. Both have a vice president serving as second in command. Both allow citizens to elect all leaders of executive departments. Both can draft and pass laws governing citizens’ behavior.
The federal executive branch and most state executive branches are similar because A. Both have department heads that manage government agencies.
The Federal executive branch is responsible for enforcing the laws of the land. The department head is the President. The state executive branch also has a department head that's known as the Governor.
It should be noted that the legislative government drafts and pass laws that govern citizens’ behavior. Also, the statement that both have a vice president serving as second in command is incorrect. The state government doesn't have a vice president.
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Answer:
both have department heads that manage government agencies
Explanation:
Generally, females tend to be more flexible than males. Question 5 options: True False
The Answer is True
Explanation: I did the test and got a 100% tell me if this helped :)
why might it be adaptive for stomata to occur mostly (if not entirely) on the undersides of leaves?
Answer:
because they will recieve less sunlight therefore water will be losed at a slower rate,water does not evaporate as quickly, which allows for transpiration to occur.
Explanation:
(✷‿✷)
Social Security and Personal Income tax are called Payroll taxes because _____. a. they help to balance the national payroll budget. b. they are automatically deducted from payroll. c. once paid, they are used to supplement the paychecks of people in need. d. you need to prove you have paid them before you can pick up your paycheck.
Answer:
b. they are automatically deducted from payroll.
Explanation:
Answer:
b. they are automatically deducted from payroll
Explanation:
Calligraphy _________________ a. was considered a sacred and respectable form of art. b. can be found only in Islamic art. c. was used along side figural imagery. d. was first used by Islamic artists during the 15th century. Please select the best answer from the choices provided A B C D
Calligraphy was considered a sacred and respectable form of art. Check more about Calligraphy below
What makes calligraphy a form of art?The term Calligraphy is known to be a type of art of creating beautiful symbols through the use of hand and arranging them in a good manner.
Conclusively, Calligraphy was considered a sacred and respectable form of art because it often needs a specific kind or set of skills and methods for placing and inscribing words which is not very common.
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in the 1830s, _________ became the device for nominating party candidates for the presidency.
Answer:
The answer is B. state caucuses and conventions
In addition to immigration, what is another factor that has changed American identify? The concept of an American identity has changed over time. Major events in US history have also had significant effects on American literature. When the colonists came to the New World from Europe, they began writing letters, essays, and articles that documented their daily experiences and hardships. For example, when slavery and the subsequent civil rights movement were pressing issues in society, many people wrote passionate letters, essays, poems, and biographies that expanded upon all sides of the topic.
Apart from immigration, another factor that has changed American identity is industrialization.
It should be noted that immigration has played a vital role in the development of the United States. There has been an influx of people from all over the world into the country and this helped the growth of the country.
Another factor was also the industrialization that occurred in the country. This led to many people coming into the country. This led to the development of the country.
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Answer:
For example, when slavery and the subsequent civil rights movement were pressing issues in society, many people wrote passionate letters, essays, poems, and biographies that expanded upon all sides of the topic.
Explanation:
I got it right on plato
if 9 people greet each other at a meeting by shaking hands with one another, how many handshakes will take place?
what is the area in square meters of 6 triangles draw a diagram
At an end of the year sale, Gabriela bought more than 12 bottles of hand soaps and lotions. If x represents the number of hand soaps and y represents the number of lotions she bought, which inequality best represents her purchase? x y < 12 x y > 12 x y ≤ 12 x y ≥ 12
Answer:
x+y>12
Explanation:
she bought more than 12, so y+x equals more than 12
which kind of disturbance is created by moving a spring toy up and down?
perpedicular to the wave motion
Hope this helped you- have a good day bro cya)
which of these tools can be used to measure the mass of an object