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Ciaria

Questions and answers by visitors named Ciaria

Questions (106)

Calculate the hydroxide ion concentration of a solution with pH = 8.25.
1. 5 answers
2. 6,457 views
Which quotation from “The Unknown Citizen” is the clearest example of satirical writing?A. “Except for the War till the
1. 4 answers
2. 860 views
Write a short story about a main character who undergoes a change or learns something. If you feel your creativity is lacking,
1. 5 answers
2. 1,237 views
Why a model of the atom is crucial to understanding chemistry and in explaining the behavior of matter?
1. 3 answers
2. 677 views
What is the mass of a cube of aluminum that is 4.0 cm on each edge? The density of aluminum is 2.7 g/cm3.
1. 4 answers
2. 1,576 views
What is the percentage of nitrogen in N2O?
1. 6 answers
2. 1,093 views
How many nonbonding electrons does phosphorus have?is it 5 valence electrons
1. 4 answers
2. 1,228 views
Identify the precipitate in this reaction: calcium nitrate reacts with sodium phosphate.2Na3PO4 + 3Ca(NO3)2--->6NaNO3 +
1. 4 answers
2. 7,273 views
The following is a Limiting Reactant problem:Magnesium nitride is formed in the reaction of magnesium metal with nitrogen gas in
1. 3 answers
2. 801 views
Why do compounds with strong intermolecular attractive forces have higher boiling points than compounds with weak intermolecular
1. 4 answers
2. 1,828 views
Why is the first ionization energy of a nonmetal much higher than that of an alkali metal in its same period?
1. 3 answers
2. 1,174 views
How many dots should be indicated in the electron dot structure of arsenic?How many electrons are in the highest energy orbital
1. 3 answers
2. 751 views
Why are the atomic masses of elements usually decimal numbers?
1. 3 answers
2. 444 views
If an element has 12 protons and 17 neutrons, how many electrons must it have?
1. 3 answers
2. 485 views
Complete and balance this reaction: sulfuric acid reacts with barium chloride
1. 5 answers
2. 1,280 views
Write the formula for iron (III) sulfate.My answer is Fe2(SO4)3
1. 2 answers
2. 597 views
Perform this operation and report the answer to the correct number of significant figures: What is the mass of a cube of
1. 3 answers
2. 1,078 views
is "The Poetic Interpretation of the Twist" by Cornelius Eady a literature poem ?
1. 4 answers
2. 1,560 views
Absolute zero isA. the temperature at which the motion of particles theoretically ceases. B. defined as 0°C. C. the triple
1. 1 answer
2. 410 views
According to the kinetic theory, gases consist of particles thatA. occupy considerable volume. B. are relatively close together.
1. 3 answers
2. 1,018 views
why gasoline wouldn't dissolve in water ?
1. 3 answers
2. 324 views
how perspiration helps keep you cool on a hot day.?Perspiration keep’s you cool on a hot day because your really steamy and
1. 2 answers
2. 606 views
You have two sealed jars of water at the same temperature. In the first jar there is a large amount of water. In the second jar
1. 2 answers
2. 592 views
why water expands when it freezes?Water expands when it freezes because it starts to bend. when all the water molecules are in
1. 2 answers
2. 523 views
explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk.
1. 2 answers
2. 491 views
What is the oxidation number of phosphorus in P2O3?O mostly always has a -2 charge, three O's = -6. The two P atoms must balance
1. 4 answers
2. 3,969 views
Tritium (H-3) has a half-life of 12.3 years. How old is a bottle of olive oil if the tritium content is 25% that of a new sample
1. 6 answers
2. 5,554 views
What type of radiation is emitted when K-38 decays into Ca-38?
1. 4 answers
2. 378 views
You have two sealed jars of water at the same temperature. In the first jar there is a large amount of water. In the second jar
1. 3 answers
2. 947 views
Why must the number of electrons lost equal the number of electrons gained in every redox reaction?
1. 3 answers
2. 813 views
explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk.
1. 4 answers
2. 1,012 views
The Kw of water varies with temperature. Calculate the pH of water at 46⁰C with a Kw = 1.219 x 10-14.
1. 3 answers
2. 488 views
The freezing of water at 0⁰C can be represented as follows:H2O (l) ↔ H2O(s) The density of liquid water is 1.00 g/cm3. The
1. 7 answers
2. 1,831 views
If 5.40 kcal of heat is added to 1.00 kg of ice at 0⁰C, how much liquid water at 0⁰C is produced?
1. 1 answer
2. 472 views
A student collected the following data for a fixed volume of gas: Temperature(C) pressure(mm of hg) 10 726 20 750 40 800 70
1. 3 answers
2. 543 views
What salt results from the neutralization of acetic acid with potassium hydroxide?
1. 1 answer
2. 398 views
A student collected the following data for a fixed volume of gas: Temperature(C) pressure(mm of hg) 10 726 20 750 40 800 70
1. 2 answers
2. 557 views
A student collected the following data for a fixed volume of gas:Temperature (C) Pressure (mm of hg) 10 726 20 750 40 800 70
1. 5 answers
2. 1,877 views
What salt results from the neutralization of acetic acid with potassium hydroxide?
1. 4 answers
2. 1,680 views
If 5.40 kcal of heat is added to 1.00 kg of ice at 0⁰C, how much liquid water at 0⁰C is produced? Show all calculations
1. 2 answers
2. 585 views
The Kw of water varies with temperature. Calculate the pH of water at 46⁰C with a Kw = 1.219 x 10-14. Show all calculations
1. 4 answers
2. 568 views
What is the cause of hexagonal structure ?
1. 1 answer
2. 297 views
Sabemos que JuanA. estudió matemáticas. B. estudió arte. C. estudió literatura española.
1. 2 answers
2. 569 views
Cuando el empleado del hotel es atento y cortés es bueno darle _____.A. un ascensor B. una llave C. una propina D. un
1. 3 answers
2. 515 views
Si vas al mar, vas a disfrutar del _____ y de _____.
1. 5 answers
2. 670 views
Es mejor que Uds. _____ en la excursión hoy porque mañana no hay suficiente tiempo.A. vayan B. van C. va D. vaya
1. 3 answers
2. 651 views
Si necesitas dinero en efectivo, hay _____ en muchos lugares en la excursión.A. quioscos B. artesanías C. cajeros automáticos
1. 3 answers
2. 551 views
Hicimos _____ a una catedral histórica en Madrid.A. un quiosco B. una gira C. un ruido D. una propina
1. 2 answers
2. 521 views
Si quieres trabajar en un laboratorio químico, serás _____.A. arquitecto B. científico C. mecánico D. veterinario
1. 5 answers
2. 517 views
Como me gusta estar al aire libre y hacer ejercicio, creo que me gustaría seguir una carrera como _____.A. científico de
1. 4 answers
2. 661 views
Algún día tendrás que _____.A. seguir una carrera B. ganarte la vida C. graduarte del colegio D. All of the above A or D ?
1. 5 answers
2. 576 views
Creo que después de terminar el programa de estudios en computación, yo _____ todo lo que necesito para seguir esa carrera.A.
1. 5 answers
2. 923 views
In the spaces provided, write the vocabulary expression that could replace the underlined words in each sentence without
1. 7 answers
2. 1,716 views
Name the property of real numbers illustrated by the equation.-4(x + 3) = -4x - 12 A. Associative Property of Multiplication B.
1. 4 answers
2. 1,711 views
Is the inequality below sometimes, always, or never true?-2(2x + 9) > -4x + 9 A. always B. sometimes C. never C ?
1. 2 answers
2. 937 views
Evaluate the expression for the given value of the variable(s).-x2 - 4x; x = –3 A. –17 B. 11 C. –1 D. 3 d ?
1. 1 answer
2. 443 views
Insert <, >, or = to make the sentence true.SQR3 SQR7 A. > B. < C. = C?
1. 2 answers
2. 700 views
What are the intercepts of the equation? Graph the equation.-3x + 4y = -12 A. x-intercept: (4, 0) y-intercept: (0, –3) B.
1. 3 answers
2. 945 views
1. What polynomial has a graph that passes through the given points?(-2, 2) (-1, -1) (1, 5) (3, 67) A. y = -x3 + 4x2 + 2x - 2 B.
1. 2 answers
2. 943 views
Let f(x) = -5x - 4 and g(x) = 6x - 7. Find f(x) + g(x)A. x + 3 B. x - 11 C. -11x = 3b D. -11x - 11 C?
1. 3 answers
2. 867 views
Let f(x) = 3x - 6 and g(x) = x - 2. Find f/g and its domain.A. 3; all real numbers B. 3; all real numbers except x = 2 C. -3;
1. 3 answers
2. 1,215 views
Let f(x) = x + 2 and g(x) = x2 Find ( g o f)(-5)A. -3 B. 9 C. 49 D. -10 B?
1. 3 answers
2. 286 views
For the function f(x) = x2 - 12, find (f o f-1)(4)A. 0 B. 4 C. 6 D. 10 A
1. 1 answer
2. 347 views
Simplify: 4sqrt400/4sqrt80 Show your work.4sqrt400/4sqrt5 = 4sqrt80 4sqrt80=4sqrt16 * 4sqrt5= 2*4sqrt5= 2^4sqrt5 Is this
1. 2 answers
2. 820 views
For the given quadratic equation convert into vertex form, find the vertex, and find the value for x = 6. Show your work.y =
1. 4 answers
2. 2,036 views
If a function, f(x) is shifted to the left four units, what will the transformed function look like?
1. 4 answers
2. 2,434 views
The velocity of sound in air is given by the equation , where v is the velocity in meters per second and t is the
1. 5 answers
2. 3,528 views
The volume in cubic feet of a box can be expressed as (x)=x^3-6x^2=8x , or as the product of three linear factors with
1. 3 answers
2. 1,839 views
In an experiment, a petri dish with a colony of bacteria is exposed to cold temperatures and then warmed again.Find a quadratic
1. 5 answers
2. 1,695 views
1. Consider the leading term of the polynomial function. What is the end behavior of the graph? Describe the end behavior and
1. 2 answers
2. 782 views
Consider the leading term of the polynomial function. What is the end behavior of the graph? Describe the end behavior and
1. 3 answers
2. 794 views
1. This graph illustrates the fact that there is a ________________ turnout for general elections than for primaries.2. When the
1. 11 answers
2. 676 views
Political parties are a principal means by which the people’s will is made known to the government and government is held
1. 4 answers
2. 873 views
How was President Roosevelt’s proposal?
1. 4 answers
2. 468 views
“The need for collecting large campaign funds would vanish [go away] if Congress provided an appropriation [federal money] for
1. 2 answers
2. 991 views
Which statement does NOT describe a major difference between Franklin’s and Cisneros’ life and writing goals?A. He records
1. 4 answers
2. 734 views
Was Olaudah Equiano moved to different slave ships trying to escape ?
1. 4 answers
2. 474 views
Where was Olaudah Equiano story set ?
1. 4 answers
2. 392 views
In “A Rose for Emily,” what type of conflict is shown by Homer Barron's not being “a marrying man”?A. internal conflict
1. 2 answers
2. 1,047 views
What do the dust tracks in the title symbolize?A. poverty in a backwater southern community B. the path to a new way of life C.
1. 10 answers
2. 2,580 views
What part of this selection from The Woman Warrior best illustrates the complications faced by bicultural families?A. Brave
1. 3 answers
2. 462 views
In which sentence is the word punitive used correctly?A. Mario proposed an ingenious, punitive solution to the math problem. B.
1. 6 answers
2. 491 views
Read the following passage from “Coyote v. Acme”: Such injuries sustained by Mr. Coyote have temporarily restricted his
1. 5 answers
2. 1,493 views
A fictional event ...Am I supposed to write about a real story that has happened in MY life ? Or make up a story ? Write a short
1. 22 answers
2. 1,223 views
In , <c is a right angle. Find the remaining sides and angles. Round your answers to the nearest tenth. Show your work.a
1. 3 answers
2. 429 views
Please show your work to find the mean and standard deviation of the data. Round to the nearest tenth.20, 16, 18, 14, 9, 20, 16
1. 6 answers
2. 1,881 views
A sound wave is modeled with the equation . y=1/4cos 2pi/3tretaa. Find the period. Explain your method. b. Find the amplitude.
1. 4 answers
2. 4,476 views
What are the points of discontinuity? Are they all removable? Please show your work. y=(x-5) / x^2 - 6x +5
1. 4 answers
2. 2,341 views
Verify the identity , justify each steptanØ+cotØ = 1/ sin Ø cosØ
1. 4 answers
2. 866 views
Verify the identity .cot (treta-pi/2) = -tan treta
1. 1 answer
2. 396 views
Verify the identity .cot ( theta - pi / 2 )= - tan theta
1. 3 answers
2. 504 views
Find the values of the 30th and 90th percentiles of the data. Please show your work.129, 113, 200, 100, 105, 132, 100, 176, 146,
1. 2 answers
2. 815 views
Compare the graphs of the inverse variations. Please provide at least 3 comparisonsy= (-0.2/x) and y= (-0.3/x) -0.05, -0.075 ,
1. 1 answer
2. 599 views
Find the values of the 30th and 90th percentiles of the data. Please show your work.129, 113, 200, 100, 105, 132, 100, 176, 146,
1. 2 answers
2. 1,132 views
Compare the graphs of the inverse variations. Please provide at least 3 comparisonsy= (-0.2/x) and y= (-0.3/x) -0.05, -0.075 ,
1. 2 answers
2. 565 views
Which of the following words has experienced the most significant connotative and denotative shift over time as a result of
1. 10 answers
2. 449 views
What is most likely the purpose of King’s Letter from Birmingham Jail? [RI.9-10.6]A. to publicize his personal achievements as
1. 7 answers
2. 756 views
Which word in the following sentence is spelt incorrectly? “The ambidectrous student was conspicuously popular on the baseball
1. 1 answer
2. 437 views
The friendly _____ looking puppy pawed on the window to attract the attention of the people walking by on the sidewalk.
1. 11 answers
2. 379 views
I have found that when I travel some cities effuse warmth and hospitality while others are very difficult for a stranger to
1. 13 answers
2. 502 views

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