Answer:
[tex]{ \rm{28.2\% = \frac{141}{500} = 0.282 }} \\ [/tex]
Answer:
Decimal=0.282
Fraction=141/500
Please help!! Due tonight! Will give brainliest to a HELPFUL ANSWER!
Answer:
mass of sample, M = 1.2359g
mass of CO2, mCO2 = 2.241g
mass of H, mH = 0.0648g
Since the compound is an organic compound,
when organic cpd is combusted it releases CO2 and H2O and NO2.
i) Mass of C, mC = unknown
CO2 molar mass, MCO2 = 44g/mol
C molar mass, MC = 12g/mol
mC = mCO2 × MC
MCO2
mC = 2.241g × 12g of C
44g of CO2
mC = 0.61g of C
C% = 49.36%
ii) mass percent of N = 28.84% of N
mass of N, mN = unknown
NO2 molar mass, MNO2 = 46g/mol
N molar mass, MN = 14g/mol
mN% = mN
M
where, M is mass of the sample.
mN = mN% × M
mN = 28.84% × 1.2359g
mN = 0.356g
iii) mass of O, mO = unknown
mass of sample = mC + mN + mO + mH
1.2359g = 0.61g + 0.356g + mO + 0.0648g
mO = 1.2359g - 1.0308g
mO = 0.2051g
O% = 16.56%
H% = 5.24%
iv) Empirical formula,
Element | C | H | N | O |
% |49.36%|5.24%|28.84%|16.56% |
A. M| 12 | 2 | 14 | 16 |
|49.36/12| 5.24/2 | 28.84/14 | 16.56/1|
n= |C= 4.1 | H= 2.6 |N= 2.1 |O= 1|
A.R |C=4.1|H=2.6|N=2.1|O=1|
Simplest | 4 | 3 | 2 | 1|
ratio
C4H3N20 is the empirical formula.
n = number of moles and at A. R is atomic ratio and I divided by smallest number of moles.
A. M = atomic mass.
meaning of accountancy??
wrong answer will be reported
Answer:
Accountancy is the rehearse of recording, classifying, and describing and recording of transactions for a business.
Explanation:
It is also a subject.It is known as Accounting.Practitioners of accounting are known as accountants.PLEASE HELP WILL GIVE BRAINLY!!!!!!
How has the use of the term "serial killer" changed in our society?
Answer:
Technology, proximity and mobility of both victims and killers has changed over time. Of course, the car became a huge part of serial killing. Now we have the internet, so stalking and selecting targets online is a recent innovation. ... Technology moves along with serial homicide
Explanation:
ano ang great depression
Answer:
The Great Depression was a servere worldwide economic depression that took place mostly during the 1930s, beginning in the United States. The timing of the Great Depression varied across the world, in most countries, started in 1929 and lasted until the late 1930s.
Please help I been getting bots lol I need help asap <3 thanks
siya ay nahalal na pangulo ng rebolusyonaryo
Answer:
Emilio Aguinaldo
Explanation:
#CarryOnLearning
Which of the following does NOT result in a driver license suspension?
A. Dropping out of high school
B. Stealing from a retailer
C. Failing to pay child support
D. Using Tabasco after you turn 21
The CORRECT answer to this question is D.
Your license will be suspended if you:
Drop out of high school
Steal from a retailer
Use tobacco while you're underage
Using tobacco after age 21 is not underage, therefore it will NOT suspend your drivers liscense.
The answer option which does not result in a driver license suspension is: D. Using Tabasco after you turn 21.
A driver license can be defined as a formal document that legally attest and certify that an individual knows how to drive an automobile vehicle and as such, he or she is permitted to drive within the stated jurisdictions. Also, it is usually issued after a driver successfully passes series of test and examination.
Generally, the driver license of an individual would be suspended for the following reasons:
When he or she drops out of high school.Stealing from a retailer or any other person.When he or she fails to pay child support.However, a driver that uses Tabasco after turning 21 years of age would not have his or her driver license suspended.
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Which of the following is NOT one of the strategies utilized by the Counter Reformation?
Answer:
COUNCIL OF TRENT
Explanation:
What would a creditor do to gain legal permission to repossess a borrower's
property?
O A. The creditor would place a lien on the borrower's property.
B. The creditor would charge the borrower a penalty.
C. The creditor would hire a collection agency.
D. The creditor would garnish the borrower's wages.
Answer:
A. The creditor would place a lien on the borrower's property.
Explanation:
According to this population pyramid, what current social issue is MOST LIKELY to be a concern to the government?
A) Uneven distribution of men and women in the 55–65 age demographic
B) Lack of workers to support the economy
C) High infant mortality rates
D) Access to jobs and resources for the 20–35 age demographic
E) Housing for the 70–75 age demographic
Answer:
B
Explanation:
I'd say B because it's likely the only thing the government would care about. They wouldn't care about deaths, as long as there was someone to do the jobs they don't want to.
how can you show appreciation for the arts of calabarzon and bicol region
One can show appreciation for the arts of the Calabarzon and Bicol region by showing respect and admiration for their arts.
Art is the expression of human creative skill in a visual form such as sculpture, painting, or producing works to be appreciated primarily for their beauty. Art can include literature, dance, painting, music, etc.
Some of the arts of the Calabarzon and Bicol region include the pinya fabric. This was used for wedding gowns and formal attire. Pinya fabric was made from pineapple fibers. Some other arts include ukit, higantes, etc.
One can show appreciation for the arts of the Calabarzon and Bicol region by showing respect and admiring their arts.
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If a sphere technically has 1 face, doesn't that mean that a circle should have 1 side?
Explain why
Note: this is just out of curiosity
Answer:
no because a side is defined as edges connecting to form a face
Explanation:
a circle has no edges so no face
What are pictures of the different type of tools to use in space and what do they use it for
Answer:
Tools to use in space:
•Earth-based Observations
•Airborne and Orbital Telescapes
•Probes and Fly-by Spacecraft
•Orbiters
•Landers
•Rovers
•Sample Return
MAPEH - The one who answer will be brainliest
Please Answer now.
Music Thank you
type of notation and what they showed
Answer:
Big-O Notation,Omega Notation,Theta Notation
Explanation:
Big O notation specifically describes worst case scenario.
Omega(Ω) notation specifically describes best case scenario.
Theta notation represents the average complexity of an algorithm.
What factors are causing India’s population to increase while many other nations are below replacement levels?
Answer:
India is set to surpass China as the world’s most populous country by 2027, according to recent United Nations projections. The country now has 1.37 billion people — second only to China’s 1.4 billion — and is expected to add another 230 million by 2050, many of whom will be among the world’s poorest.
Prime Minister Narendra Modi may have had those facts in mind earlier this year when he called on Indians to have small families. Yet those alarming statistics hide a more complex reality, and some positive trends, experts say.
As in much of the rest of the world, India’s growth rate has been slowing for the past few decades, a decline attributed to increasing alleviation of poverty; rising education levels, especially among women; and growing urbanization. Most Indian states are expected to hit replacement fertility levels of 2.1 children per woman by 2021. Fertility rate has already declined to an average of 2.2 in 2017, according to a government survey of 22 major states, while urban fertility has already fallen below replacement level, to 1.7 children per woman. (The replacement fertility level refers to the number of children born per woman so that one generation exactly replaces the preceding one.)
Still, nine of those states have fertility rates above replacement levels, including five of the poorest. And experts say that India still has a large unmet need for modern contraceptive methods and relies too heavily on sterilizing women. The United Nations estimates that more than 10 million Indian women a year have unintended pregnancies.
According to current estimates, India’s population will peak in the early 2060s at 1.7 billion, putting additional pressure on the environment and natural resources and boosting greenhouse gas emissions —though the average Indian generates a fraction of the planet-warming emissions produced by the average American or European. Most of India’s population increase by mid-century will be due to demographic momentum, meaning that even as fertility rates fall below replacement levels, the large numbers of young people will continue to boost the country’s population, says P. Arokiasamy, head of the Department of Development Studies at the Indian Institute of Population Sciences in Mumbai.
Explanation:
Explanation:
POVERTY
While billions enjoy an affluent style, more than a tenth of the world’s population live in extreme poverty today. Poverty is not a consequence of limited global resources, but political and economic injustice. However, the poorest people are almost always at greatest risk from environmental damage, climate change and competition for resources. The effects of unsustainable population hit the poorest first, and hardest.
Solve for a -3(7a+5)=27
Explanation:
distribute the -3 to 7a +5 which equals -10a -15=27. Then add 15 to both sides to get -10a =42them divide -10 on both sides. Which equals -4.2.
Random question! trying to calm down after life today!
does anyone else's cat steal your desk?! who else has a cat? and if you don't then do you like cats? what bread is your favorite?
Answer: I‘m allergic to cats but I love them all lol
Answer:i like cats and wheat or white bread is my facorite
Explanation: because can be cute or fricking demons
Explain one way in which trade affected the environment during the period 1200-1450
Answer: Facilitated the transmission of disease
Explanation:
For example The Mongols were all about expanding. When they were taking over other empires and civilizations they were spreading the fleas that harbored the disease.
Over the past 30 years, the number of undocumented immigrants in the United States *
2 points
has increased because of the demand for menial laborers in the United States has grown.
has increased because of more relaxed border security since September 11, 2001.
has decreased because of greater border security.
has decreased because of poor economic conditions in the United States.
A and B only.
Sa tingin mo, tama ba ang ginawa ni teodoro patino na isiwalat ang samahang kkk? Ipaliwang.
Answer:
I'm sorry I can't understand you
21. An astronaut travels to the moon. What is true regarding her mass
A. Her mass and weight are greater on Earth.
B. Her mass and weight are the same on Moon as on the Earth.
C. Her mass is the same on the Earth and the Moon, but her weig
D. Her weight is the same on the Earth and the Moon, but her ma
Answer:
C is the correct option.
Explanation:
Mass remains the same on Moon as it was on Earth but the weight differs on Moon because of gravity is less on the Moon than on Earth.
What percentage of the body is burned if a 16 year old male burned his entire back, the back of his left leg, and his entire right arm?
Answer: You can quickly estimate the size of a burn by using the "rule of nines." This method divides the body's surface area into percentages.
Explanation:
Peter says if you subtract 14 from my number and multiply the difference by -3 the result is -30 what is peters number
Answer
His number is -34
A researcher is trying to determine whether a new painkilling medicine is effective in reducing headaches. Twenty adult participants sit in a noisy environment for 30 minutes and then rate the severity of their headaches on a scale from 0 (none) to 5 (intense). Group M (the medicine group) receives a normal dose of the medicine. Group C (the control group) rests quietly. After 20 minutes, all participants again complete the headache rating scale. The statistically significant differences in headache severity on the posttest appear in the graph below.
Which of the following statements is supported by the results of this experiment?
Answer:
THE MEDICINE
Explanation:
The medicine, remember independent variable which causes a change in behavior.
What is an independent variable?In an experiment or study, an independent variable is a variable that the researcher modifies or alters in order to examine the impact on the dependent variable. To ascertain its effect on the dependent variable, the variable is tested or researched.
In other terms, an independent variable is a variable in the experiment or study that is not affected by any other factors. It is typically indicated by the letter "X" and is what changes or impacts the dependent variable.
For instance, the amount of fertilizer put to the soil would be the manipulated variable in an experiment to determine the impact of fertilizer on plant development.
Therefore, the medicine, remember independent variable which causes a change in behavior.
Learn more about variable, here:
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How do psychologists use the scientific method?
A. To help gather and measure evidence precisely
B. As guidance for conducting tests and observations
C. As guidance for the practice of psychoanalysis
D. To control human behavior
Answer:
A and C i think
Explanation:
Psychologists use the scientific method to conduct their research. The scientific method is a standardized way of making observations, gathering data, forming theories, testing predictions, and interpreting results. Researchers make observations in order to describe and measure behavior.
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kapag nabuhay ka sa sinaunang panahon, nais mo bang manirahan sa mga pook na malapit sa ilog? bakit?
Answer:
oo dahil masmadali kang makakuha ng tubig, kailangan natin ang tubig para mabuhay. ibig sabihin, mas madali tayong makakakuha ng pangangailangan natin kapag malapit ang sariling tahanan malapit sa ilog.
Explanation:
eeee
Hamid is playing a trivia game with multiple choice questions. Each question has2 correct answers among5 answer choices.
Answer:
2/5 odds
Explanation:
Answer:
0.1 i did khan academy
Explanation:
what shifts in survivor ship curves would you expect to see if environmental problems worsen and polluted related diseases increase?
Besides the constraint of the general life history strategy of a species, the shape of survivorship curves can be affected by both biotic and abiotic factors, such as competition and temperature.
What reasoning does Martin Luther give to support his demands?
Answer:
His writings were responsible for fractionalizing the Catholic Church and sparking the Protestant Reformation. His central teachings, that the Bible is the central source of religious authority and that salvation is reached through faith and not deeds, shaped the core of Protestantism
Explanation: