Answer:
T
Explanation:
egg 2021
do i ask a girl out on a date?
Answer:
Be a gentleman
Explanation:
I got a GF
Concentrated nitric acid has a molarity of 15.9 M and a density of 1.42 g/mL. Calculate the following concentrations using 1.00 L of HNO3.
a) % by mass
b) molality
c) mole fraction
Answer: a) percent by mass = [tex]70.5\%[/tex]
b) molality = 38.01mol/kg
c) mole fraction = 0.40
Explanation:
Given molarity = 15.9 M
moles of [tex]HNO_3[/tex] = 15.9 moles in 1.00 L of solution
mass of [tex]HNO_3[/tex] = [tex]moles\times {\text {Molar mass}}=15.9mol\times 63g/mol=1001.7g[/tex]
Density of solution of = 1.42 g/ml
Volume of solution = 1.00 L = 1000 ml
Mass of solution = [tex]Density\times volume= 1.42g/ml\times 1000ml=1420g[/tex]
mass of solvent = mass of solution - mass of solute = (1420-1001.7) g = 418.3 g = 0.4183 kg
moles of solvent = [tex]\frac{\text {given mass}}{\text {Molar mass}}=\frac{418.3g}{18g/mol}=23.2mol[/tex]
percent by mass =[tex]\frac{\text {mass of nitric acid}}{\text {mass of solution}}\times 100=\frac{1001.2}{1420}\times 100=70.5\%[/tex]
molality = [tex]\frac{\text {no of moles of solute}}{\text {mass of solvent in kg}}=\frac{15.9mol}{0.4183kg}=38.01mol/kg[/tex]
mole fraction = [tex]\frac{\text {moles of solute}}{\text {total moles}}=\frac{15.9}{15.9+23.2}=0.40[/tex]
Ebecca reads a book at a rate of 1 page every 4 minutes. If her reading rate remains the same, which method could be used to determine the number of minutes for her to read 16 pages. Group of answer choices add 4 and 16 divide 16 by 4 multiply 4 by 16 subtract 4 from 16.
Answer:
Multiply 4 by 16
Explanation:
Given
[tex]Rate = 1\ page/4\ minutes[/tex]
Required
Select the method that maintains her rate for 16 pages
To get the method for 16 pages, we simply multiply 4 by 16. This is shown below
[tex]Rate = 1\ page/4\ minutes[/tex]
Calculate the unit rate
[tex]Rate = \frac{1}{4} page/min[/tex]
[tex]Rate = 0.25 page/min[/tex]
For 16 pages, it is:
[tex]Rate = \frac{16 page}{4 min * 4}[/tex]
[tex]Rate = \frac{16 page}{4 min * 16}[/tex] -- Here, we multiply 4 by 16
[tex]Rate = \frac{16 page}{64\ min}[/tex]
[tex]Rate = \frac{16}{64} page/min[/tex]
[tex]Rate = 0.25 page/min[/tex]
See that the unit rates remain the same.
Other options will give different rates
2) What was the impact of the new and improved caravel ship in
exploration?
A.) The new caravel was faster, but clumsier contributing to a lag in trading.
B.) The new and improved caravel made exploration and trade amongst nations more even.
C.) The new and improved caravel gave Portugahan
advantage in exploration and trading in the world.
D.) The caravel increased the time it took to trade due to the new size of the ship, thus impacting the
efficiency of trade.
Answer:
B.
Explanation:
The caravel was a ship used to explore the New World in the 15th and 16th Century, during the Age of Discovery. The Caravel was developed and modified from simple fishing ships to sailing ships by Portuguese to explore the African coast and the Atlantic Ocean.
The new and improved caravel made it possible for European to explore and colonize the New World. With the desire to expand their boundaries of politics, economy, religion, and science, they explored the New World using the Caravel.
Therefore, option B is correct.
What is your favour color
jedi master green
jedi knight blue
sith red
jedi temple guard yellow
mix dark and light purple
solo or not on either side white .
The dark Saber mandalorian .
Can someone answer my other question?. :(
Answer:
what is the question my guy
Please help me with this problem. I don’t understand it.
Answer:
34
Explanation:
mid point of 0 and 3 is 1.5, -1 to 0 is 1, so the average value over that is 1.5
then 3 to 1, mid point is 2, with a lenght of 1, so 1.
midpotni of 1 and 5 is 3, over a length of 2, so 6
5 and 8 -> 6.5, length of 2 -> 13
8 and 4 -> 6, length of 1 -> 6
4 and 9 -> 6.5, length of 1 -> 6.5
add em up
1.5+1+6+13+6+6.5 = 34
Question 3 of 10
Which of these must be true for an agricultural technique to be considered
sustainable?
A. It must meet society's needs while minimizing environmental
impact.
O B. It must protect the environment at all costs.
OC. t must serve present society at the cost of future generations.
D. It must use only traditional farming practices.
Answer:
A. It must meet society's needs while minimizing environmental
impact.
Explanation:
Given that sustainability is the practice of utilizing and maintaining natural resources without causing defects to biodiversity balance.
Hence, for an agricultural technique to be considered sustainable "It must meet society's needs while minimizing environmental impact."
This implies that there should be a balance between natural resource exploitation and ecological balance, such that humans can enjoy both the resources and nature without one affecting the other and at the same time, with no negative effect on humans.
Warmer temperatures at the Earth's poles could change atmospheric circulation and wind patterns. Propose a solution for how communities near the poles can prepare for these changes in wind.
Warmer temperatures at the poles could alter wind patterns and atmospheric circulation.
What is atmospheric circulation?Through atmospheric circulation, heat is transferred over the surface of the Earth. This has an effect on the water cycle, including cloud formation and precipitation events. The movement of air masses determines our everyday weather, and long-term patterns in circulation have an impact on regional climate and ecosystems.
This pattern, called atmospheric circulation, is a result of the Earth being heated by the Sun more at the equator than in the poles. The rotation of the Earth has an effect on it as well. In the tropics, near the equator, warm air rises.
Atmospheric circulation, or the movement of heat and air over the earth's surface, is governed by Hadley, Ferrel, and polar cells.
Thus, Warmer temperatures at the poles could alter wind patterns.
For more information about atmospheric circulation, click here:
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Read these two passages from 1788, which are related to the debate over the ratification of the Constitution.
If men were angels, no government would be necessary. . . . you must first enable the government to control the governed; and in the next place oblige it to control itself. A dependence on the people is . . . the primary control on the government.
–Federalist 51, 1788
In a national government, unless cautiously and fortunately administered, the disputes will be the deep-rooted differences of interest, where part of the empire must be injured by the operation of general law.
–A Maryland farmer, 1788
How is the first passage, taken from the Federalist papers, an example of the stance of a Federalist?
It favors state governments over the federal government.
It promotes the concept of a strong federal government.
It opposes separating powers in the federal government.
It dismisses the importance of the federal government.
Answer:
It promotes the concept of a strong federal government.
Explanation:
The first text reinforces the need to promote strong federal government. This concept was the main idea defended by the federalists and can be defended by the text when the author states that a people needs to be governed by a system that has the power to organize men, to control them in relation to their defects. The text shows that men are not angels, so it is necessary that a powerful system has the power to lead them. That powerful system is the federal government.
In which of the following states would gerrymandering have the LEAST impact?
O A state in which there are a variety of ethnic groups living in each district
O A state in which there is an even split among the political party groups within the state
O A state in which 95 percent of citizens belong to the same political party
O A state in which there is a strong third-party presence
O A state in which a proportional-election system is practiced
Answer:
c
Explanation:
Answer:
A state in which 95 percent of citizens belong to the same political party
Explanation
i took the exam i got it right
Which student is doing the best based on a number-grading system? ill a give a brainilest
The student that is doing the best is Julia because she has the highest score.
What is a number-grading system?In education, number-grading systems are systems based on numbers used to measure students' performance. There are two common systems all around the world.
1 to 10: In this system, the highest grade is 10 and the lowest grade is 1. This means a student that is given a 1 is performing poorly.1 to 5: This system is quite similar to the first system because 5, which is the highest number represents the best performance.What student is doing the best?The student that is doing the best is Julia, she got a score of 5 and therefore she is the one that has the best performance on the coursework.
Note: This question is incomplete because the options are not given; here is the missing part.
Julia, who scored a 5 on her coursework.
Samuel, who scored a 1 on his coursework.
Mariana, who scored a 3 on her coursework.
Benjamin, who scored a 4 on his coursework.
Learn more about number-grading in: https://brainly.com/question/165537
In the mind of Jay Gatsby, his view of success involves self-improvement, wealth, and social standing with upper class society.
Explain what you believe is missing from this list of requirements for
Success.
Answer:
Structuralism was more focused on introspection, whereas Gestalt was focused on perception. Structuralism focused on research methods that utilized trained subjects- they thought you had to work at the process of introspection. Gestalt had naive subjects and thought they should study the natural flow of perception.
Explanation:
i give 99 points and you give branist i did this 3 times
Answer:
thanks
Explanation:
What is the role of boundaries, and how do they function within or between states?
WILL PICK BRAINLIEST
Which of the following pairs accurately matches the food or animal with its point of origin?
Africa: sweet potatoes, bell peppers, pineapples, turkeys
South America: cattle, goats, bananas, barley
North America: horses, pigs, wheat, sugar
Europe: potatoes, coffee, cattle, onions
Africa: chickens, peas, sheep, radishes
Answer:
Africa: chickens, peas, sheep, radishes
Explanation:
The pair which matches the food or animal with its point of origin is; Africa: chickens, peas, sheep, radishes
African origin of sheeps:Archaeological information supports separate introductions and dispersion histories for the African thin-tailed and fat-tailed sheep. The first sheep entered Africa via the Isthmus of Suez and/or the southern Sinai Peninsula, between 7500 and 7000 BP.
Additionally, chickens, peas and radishes also found their origin with Africa.
Read more on African origin animals;
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Emily and her husband are thrilled as they peer into Emily's uterus by means of an ultrasound. The physician reports that the pregnancy appears normal and that their baby's organs, spine, and arms and legs are developing as expected. Given this information, the current stage of prenatal development is the (3 points)
embryonic period
germinal period
zygotic period
fetal stage
placenta
Answer:
A. embryonic period
Explanation:
if not then fetal stage- where the growth is furthured.
From the given information, the current stage of prenatal development is the; A: Embryonic Period
The process of prenatal development is divided into three main stages namely;
Germinal Stage; This stage is defined as the first two weeks after conception. This is the beginning stage of conception and as such it is the stage when the sperm and the egg cell unite in one fallopian tube.Embryonic Stage; This stage is from the third through the eighth week after conception. In this stage we can see the baby already developing with organs, legs, arms e.t.cFetal Period; This stage is the time frame from the ninth week after conception until the woman gives birth. This stage shows more and more changes in the brain and generally until conception time.In conclusion, the correct option for that stage of prenatal development is called Embryonic Period.
Read more about prenatal development at; https://brainly.com/question/9622335
