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Maria

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Calculate the concentration of H+ ions of an aqueous solution of nitrous acid ( HNO2) to 0.02 mol/L knowing that the degree of
1. 1 answer
2. 682 views
A 40kg mass hangs from two cables. One cable is at a 25 degree angle. The other cable is horizontally attatched to the mass.
1. 1 answer
2. 702 views
George bought some CDs at his local store. He paid $15.95 for each CD. Nora bout the same number of CDs from a store online. She
1. 2 answers
2. 2,008 views
What literary device is most strongly represented in the following line from “Beowulf?”“Follower and the strongest of the
1. 3 answers
2. 1,364 views
Solve0=e^3x-9e^2x+20e^x
1. 1 answer
2. 450 views
A team of dogs drags a 81.2 kg sled 3.12 km over a horizontal surface at a constant speed.The coefficient of friction between
1. 3 answers
2. 2,820 views
A rectangular yard measuring 25ft by 35ftis bordered (and surrounded) by a fence. Inside, a walk that is 2ft wide goes all the
1. 2 answers
2. 924 views
a sample of 0.5g gaseous alkane occupies a volume of 200cm3 at STP,find molar Mass
1. 1 answer
2. 513 views
The sum of twenty one and five times a number f is 61 total
1. 5 answers
2. 2,079 views
112.00g of nitrogen gas is reacted with an excess or abundant amount of oxygen gas. The single product, a gas, is determined to
1. 1 answer
2. 670 views
What is social studies?social studies is when you learn about your history and they tell you what happen back then when a lot of
1. 3 answers
2. 1,139 views
What is temperature when you do math. In seventh grade math is hard and I don't understand what my teachers tell me they say
1. 5 answers
2. 1,014 views
Write three equivalent ratios for each?a). 2 : 1 = b). 32 : 4 = c). 27 : 15 = d) 10/3 =
1. 1 answer
2. 755 views
Can someone help me with this equation please? The directions are:Write an equation for the line in point/slope form and
1. 2 answers
2. 992 views
Show that(x + 1)(x – 3)(x – 4) = x3 – 6x2 + 5x + 12 I'm so sorry but I can't show any working for this as I don't have a
1. 1 answer
2. 439 views
It continues to fly along the same horizontal arc but increases its speed at the rate of1.41 m/s.Find the magnitude of
1. 2 answers
2. 1,364 views
Claudia is celebrating her birthday 18th. A year have 12 months. About haw many months lived Claudia in 18 years?.
1. 1 answer
2. 384 views
1. The human endocrine system is made up of which of the following structures? (1 point)vessels receptors glands * chambers 2.
1. 8 answers
2. 1,232 views
1. The human endocrine system is made up of which of the following structures? (1 point)vessels receptors glands * chambers 2.
1. 4 answers
2. 1,426 views
Sketch the curve with equationy = (x -1)³ - 4(x - 1) It's not really the sketching which is the problem but more working out
1. 1 answer
2. 644 views
How to do the Calypso (from th odyssey book) GN page
1. 0 answers
2. 391 views
A pet store has 4 dogs for sale. They have three times as many fish for sale, twice as many birds for sale, and half as many
1. 3 answers
2. 871 views
-4(-3x+w)+6(-6w+2x)
1. 2 answers
2. 305 views
1) How many grams of CH4 (MM = 16.043) are needed to react with 50.0g of CL2 (MM=70.91)?2) What is the molarity of a solution
1. 1 answer
2. 1,103 views
With relation to Avogadro's Constant:How many hydrogen ions are present in 3 moles of dilute sulphuric acid? As sulphuric acid
1. 1 answer
2. 532 views
The weight of box A is 4/5 of box B. If box B is placed on one side of a balance scale, it is balanced by box A and a 4/5 pound
1. 1 answer
2. 505 views
balace scale, it is balance by box a and a 4/5 pound weight. How much does box b weight.8 (12.8oz)1/5 B
1. 1 answer
2. 399 views
What is 2p+4x=8 solve for x?
1. 1 answer
2. 373 views
Assume that the manufacturing of plastic (PVC) windows is a perfectly competitive industry. The market demand for plastic
1. 0 answers
2. 635 views
Hoy can i name the entire physical universe?
1. 0 answers
2. 429 views
The concrete for a sidewalk is being poured outside the perimeter of a new subdivision, which is a 280 ft. by 720 ft. rectangle.
1. 2 answers
2. 699 views
What does the word mimetic tell us about the difference between novels and most of the literature of the 1800s?A. Novels were
1. 1 answer
2. 965 views
Two blocks of masses is m and 2m are held in the equilibrium on a frictionless incline. In terms of m and x, find the magnitude
1. 0 answers
2. 888 views
About how many participants are needed for 80% power in each of the following planned studies that will use a t test for
1. 1 answer
2. 513 views
Assume that you are 23 years old and that you place $3,000 year-end deposits each year into a stock index fund that earns an
1. 1 answer
2. 673 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. 1 answer
2. 620 views
Find the 100th term in the sequence 77, 71, 65, 59How do you go about doing this question without the need to list them all out?
1. 2 answers
2. 890 views
What is the units digit of 7^42 .I know I can just plug it in a calculator, but what is a faster way
1. 4 answers
2. 1,852 views
Find the 100th place to the right of the decimal point in the decimal expansion of 1/13.
1. 2 answers
2. 3,053 views
here is a public debate between the three candidates for the U.S. Senate. During the debate, the topics of oil and energy are
1. 7 answers
2. 1,790 views
If all counties in Florida had used the same procedures for recounting votes in the 2000 presidential election, then how might
1. 2 answers
2. 963 views
The First Amendment to the Constitution protects freedom of speech and of the press. Which of the following examples best
1. 5 answers
2. 819 views
John knows many people who feel that small business need more support from the government. They support tax break and other
1. 5 answers
2. 1,055 views
jill, the editor of the school newspaper, is running for class president. Her opponent is Jack, the captain of the school's ski
1. 7 answers
2. 1,539 views
Rick wants to support a bill that is about to be voted on in his state's legislature. How might Rick more effectively support
1. 11 answers
2. 2,098 views
Libertarians believe that individual liberty is very important.They believe that people have the right to engage in any activity
1. 5 answers
2. 1,540 views
Two candidates are running for office in the state senate. During a debate, the candidates say the following: Candidate A:
1. 2 answers
2. 1,411 views
An oil company in Houston, Texas is hiring a geologist. The company interviewed 16 candidates. After the interviews, they ranked
1. 1 answer
2. 496 views
Five cards are dealt from a deck of 24 cards to form a euchre hand. Is this a combination or permutation?4 actors are chosen To
1. 1 answer
2. 630 views
Count the number of ways to award first place to third place to the top three groups in an engineering competition.
1. 1 answer
2. 409 views
Consider two students, a 65 kg guy and a 50 kg girl who are attracted to each other, gravitationally, that is. They sit next to
1. 2 answers
2. 505 views
Grayson is designing a rectangular athletic field. On his scale drawing. the vertices of the rectangle are (4,5), (9,10), and
1. 69 answers
2. 7,732 views
A racket exerted an average force of 152.0 N on a ball initially at rest. If the ball has a mass of 0.070 kg and was in contact
1. 4 answers
2. 2,115 views
You are given an organic solution which reacts with most organic solvents. how would you obtain the IR spectrum of it?
1. 0 answers
2. 406 views
What is the equilibrium equation for FeS(s) + 2H3O+(aq) - Fe2+(aq) + H2S(aq) + 2H2O(l) ? Explain if possible !
1. 1 answer
2. 1,453 views
If a 0.50-kg block initially at rest on a frictionless, horizontal surface is acted upon by a force of 8.0 N for a distance of 4
1. 1 answer
2. 1,262 views
What value of x makes this equation true?1/3(9x-2)+1=2(4x+1) a) x=-3 b)x=-1/3 c)x=1/3 d)x=3 Please explain. Having a hard time
1. 2 answers
2. 1,192 views
charlie says that y=2x squared is not a function because the same y-value sometimes corresponds to more than one x-value. Is
1. 1 answer
2. 472 views
C18H32O2 + 2H2 - C18H3602; oxidized or reduced?
1. 1 answer
2. 870 views
1. If m∠1=37º , what is m∠4?a) 53º b) 43º c) 37º d) 27º 2. If m∠1=50º , what is m∠5? a) 50º b) 40º c) 35º d)
1. 3 answers
2. 1,335 views
the scale listed on the box containing a model ship is 1 inch to 8 feet. which proportion can be used to find the actual length
1. 1 answer
2. 449 views
You're in an airplane that flies horizontally with speed 830km/h (230m/s ) when an engine falls off. Neglecting air resistance,
1. 1 answer
2. 2,258 views
Why wasn't cross multiplication used.Five editors finish a project in 3 1/2 weeks. How many editors are needed to complete the
1. 1 answer
2. 650 views
Is there some other way I can explain this to my 8th grader.Five editors finish a project in 3 1/2 weeks. How many editors are
1. 2 answers
2. 532 views
Five editors finish a project in 3 1/2 weeks. How many editors are needed to complete the same project in 1 1/6 weeks?
1. 1 answer
2. 754 views
Donna has scored73 , 82 , 71 , 79 , and 69 on her previous five tests. What score does she need on her next test so that her
1. 2 answers
2. 663 views
If 20dm3 methane was burned in pure oxygen: CH4(g) + 2O2(g) arrow CO2(g) + 2H2O(l)how do I work out the volume of carbon dioxide
1. 3 answers
2. 907 views
Lamar made a garden in the shape of a rectangle with an area of 36 square feet. The shorter side of the garden measures 4 feet.
1. 4 answers
2. 3,151 views
John brings fruit punch to a school party. He brings 6 gallons of fruit punch but the students only drink 3/4 of it. How much
1. 3 answers
2. 355 views
1.evaluate without using a calculator2logx+1=log900 2.solve the following equation A. 3log(x-2)=4.714 B. 16^x-3 = 8^2x+1
1. 1 answer
2. 642 views
How many grams of Na2CO3 must be dissolved in 3.75 L of aqueous solution to yield a molar concentration of 1.75 molar?
1. 1 answer
2. 1,237 views
A body with a mass of 490kg is pulled along a horizontal plane at a constant velocity.the pulling force is 1.2 kN is making an
1. 3 answers
2. 444 views
1. A body with a mass of 490kg is pulled along a horizontal plane at a constant velocity.the pulling force is 1.2 kN is making
1. 1 answer
2. 563 views
Looking down C2-C3 of 2-methylpentane, is the first newman projection staggered or eclipsed?
1. 2 answers
2. 602 views
It's an irregular hexagon. The base of the hexagon is 12m, the length of one side is 9m, the length of the other sides are 5m,
1. 2 answers
2. 840 views
Two people are holding up the ends of a 4.40-kg wooden board that is l = 1.95 m long. A m = 2.00-kg box sits on the board, 0.50
1. 0 answers
2. 746 views
a service of juice is 250 ml. how many servings are in a doze liters of juice?
1. 1 answer
2. 441 views
Aaron has 5 pounds of flour. He needs 1/8 of a pound of flour to make a single cupcake. how many cupcakes can he make?
1. 1 answer
2. 610 views
Netta faxed n pages from the library. The library charges $1.50 per page. Later the same day, Netta faxed n more pages from a
1. 3 answers
2. 2,197 views
What will the pH be if 15 mL of 0.1 M HCl are added to the buffer obtained by mixing 70 mL of 0.5 M CH3NH2 and 30 mL of 1.0 M
1. 4 answers
2. 3,723 views
What are some arguments against extending human life?Please describe at least one objection and one objection from your research
1. 1 answer
2. 566 views
Mia buys 3 gallons of gas that costs d dollars per gallon. Bob buys g gallons of gas that costs $3 per gallon.a) Write an
1. 7 answers
2. 2,089 views
Research and describe one current application of the knowledge of the atom. This application can be in any field of your choice.
1. 1 answer
2. 492 views
For questions #14 – 16, write an equation for the reaction of magnesium oxide with sodium chloride to produce magnesium
1. 1 answer
2. 550 views
A company rents its care for a daily fee, plus an additional charge per miles driven. Trip one is 4 days, 450 miles, and cost
1. 1 answer
2. 465 views
A weightlifter has a basal metabolic rate of 64.6 W. As he is working out, his metabolic rate increases by about 650 W.(a) How
1. 1 answer
2. 642 views
A weightlifter has a basal metabolic rate of 64.6 W. As he is working out, his metabolic rate increases by about 650 W.(a) How
1. 2 answers
2. 1,873 views
(a) How many hours does it take him to work off a 450 Calorie bagel if he stays in bed all day?(b) How long does it take him if
1. 0 answers
2. 563 views
an ice skater applies a horizontal force to a 20 kg block on frictionless, level ice causing the block to accelerate uniformly
1. 1 answer
2. 1,707 views
A sample contains 3.5×1019 radioactive atoms with a half life of 10000 years. How many atoms are expected to decay in the first
1. 1 answer
2. 505 views
-6 - radical 10 / 3+8 radical 10
1. 1 answer
2. 431 views
The percentage of people not covered by health care insurance in 2003 was 15.6% (Statistical Abstract of the United States,
1. 0 answers
2. 894 views
The Voltage v , Current I and Resistance R are related by the equation V=IR. Suppose that V is increasing at a rate of 2
1. 1 answer
2. 840 views
What effect has the 1991 gulf war had on current day terrorism ?
1. 1 answer
2. 502 views
The ionic compund sometimes called yellow uranium is used to produce colored glazes for ceramics. It is 7.252% sodium, 75.084%
1. 2 answers
2. 673 views
The Trouble with Television by Robert Mac NeilIt is difficult to escape the influence of television. If you fit the statistical
1. 3 answers
2. 698 views
Ethic CaseThe Controller for Anderson Electric, Ron Foss, is reviewing the year-end adjusting entries prepared by the accounting
1. 0 answers
2. 686 views
Quadrilateral Math has been dissected into squares. The area of the red square is 64 square units and the area of the blue
1. 1 answer
2. 1,013 views
Calculate the value (calories) for the heat of solution.Mass of NaOH: 2.03 g ΔT for reaction A : 8 °C
1. 1 answer
2. 1,699 views
An object slides on a level surface in the +x direction. It slows and comes to a stop with a constant acceleration of -2.45
1. 1 answer
2. 1,040 views

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