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Kelsey

Questions (314)

What is 17.4 psi converted to atm?
1. 1 answer
2. 388 views
What volume of O2 at 912mmHg and 33 degrees C is required to synthesize 11.0 mol of NO?
1. 1 answer
2. 430 views
how many milliliters of a 5% stock solution are needed to prepare 250ml of a 2% solution?
1. 0 answers
2. 537 views
If 1.0L of spilled 1M HCl needed to be neutralized using solid sodium carbonate, how many grams of solid would be required?a)53g
1. 2 answers
2. 1,944 views
A block of wood is pulled by a horizontal string across a horizontal surface at a constant velotcity with a force of 20 N. What
1. 0 answers
2. 642 views
A box weighing 600 N is pushed along a horizontal floor at a constant velocity with a force of 250 N parallel to the floor. What
1. 1 answer
2. 1,729 views
A 25-kg crate requires a horizontal force of 40 N to set it in motion. What is the coefficient of static friction between the
1. 2 answers
2. 497 views
1) here has been a great deal of controversy over whether cell phones cause brain cancer due to the emission of high energy
1. 1 answer
2. 525 views
The first ionization energy is the energy necessary to completely remove the outermost electron from an atom. For a Hydrogen
1. 0 answers
2. 617 views
Round to the nearest hundred and the nearest tenth. 625
1. 2 answers
2. 983 views
Reasoning question... in order from least to greatest the six numbers whose digits are 2,8, and 9...
1. 1 answer
2. 476 views
What is the theme of the poem A Kite is a Victim. What are juxtapositions in this poem
1. 1 answer
2. 1,018 views
Could you tell me how to go about analyzing or theme or poem"A Kite Is a Victim" by Leonard Cohen What are juxtapositions ?
1. 3 answers
2. 794 views
A 1000 kg boat is traveling at 90 km/h when its engine is shut off. The magnitude of the kinetic frictional force f_k between
1. 1 answer
2. 2,365 views
Cd/Cd2+//H+/H2/PtWrite the oxidation and reductionhalf reactions. Sketch a possible deisgn cell. I am unclear on the Pt portion
1. 2 answers
2. 2,838 views
2H2O2 --- 2H2O + O2 is this a redox reaction if so what is the oxidized reactant and reduced reactant
1. 1 answer
2. 9,086 views
Two half cells in a galvanic cell consist of one iron electroide in a solution of iron sulphate and a silver electrode in a
1. 1 answer
2. 735 views
I am having problems with this redox question.3 Ag2S + 2Al ---6 Ag + Al2S3 What are the charges on each;
1. 1 answer
2. 1,468 views
I am having problems with this redox question.3 Ag2S + 2Al ---6 Ag + Al2S3 What are the charges on each;
1. 0 answers
2. 672 views
2NaHCO3 --- Na2CO3 + H2O + CO22Fe + 6 HCl -- 2 FeCl3 + 3H2 2HBr + Ca(OH)2 -- CaBr2 + 2H2O N2 + 3H -- 2NH3 2H2O -- 2H2O + O is
1. 0 answers
2. 733 views
a) show a balanced neutralization reaction for each.b) Determine how many moles of base are needed to neutralize 2 mles of acid
1. 1 answer
2. 534 views
A technician needs to determine the concentration of lead ions in a sample of watera) Suggest a test chemical that can be added
1. 0 answers
2. 585 views
A technician needs to determine the concentration of lead ions in a sample of watera) Suggest a test chemical that can be added
1. 2 answers
2. 571 views
2.00mL of 0.01 mol/L aqueous sodium sulphide is used to test a 50.omL sample of water containing 0.0005 mol/L mercury (II)
1. 3 answers
2. 595 views
what chemical test can be used to test for lead in water
1. 1 answer
2. 405 views
a contaminated water sample has a H of 3. How many times more acidic is this sample compared to neutral water of 7
1. 1 answer
2. 407 views
write a complete strucural formula for each reaction, Name the reactio and then the reactants and productsC3H6 + Cl2 --- C3H6Cl2
1. 1 answer
2. 727 views
Using structural formula, draw formulae illustrating the complete combustion of ethanol
1. 3 answers
2. 617 views
what two tests can I use to determine if a comound is an alcohol or a short or long chained carboxylic acid. I have two
1. 3 answers
2. 404 views
Please be specific. In an experiement 23.4 g of iron sulphide, FeS are added to excess oxygen, and 16.5 of Iron oxide, Fe2O3 are
1. 1 answer
2. 1,005 views
I have posted this once and still cannot get the correct answer.Determine the mass of carbon monoxide that is produced when 45.6
1. 1 answer
2. 791 views
What is a meteor mad out of?
1. 1 answer
2. 404 views
How do I prepare 500 ml of a .100 mol/L solution of copper sulphate.
1. 1 answer
2. 611 views
In an experiement 23.4 g of iron sulphide are added to excess oxygen and 16.5 grams of iron (III) oxide, Fe2O3 are produced the
1. 2 answers
2. 965 views
Determine how many atoms there are in 1 litre of hexane or gasoline. A litre of gasoline has a mass of approximately 850.0
1. 1 answer
2. 466 views
Determine how many atoms there are in 1 litre of hexane or gasoline. A litre of gasoline has a mass of approximately 850.0
1. 1 answer
2. 568 views
Determine the mass of carbon monoxide that is produced when 45.6 g of methane, ch4 react with 73.2 g of oxygen gas, o2. The
1. 1 answer
2. 884 views
let a,m, and n be whole numbers where m>n and a is not zero. a^m/a^n= a^m-n
1. 1 answer
2. 245 views
Could someone please check over my answers, and let me know if any of them are wrong. If they are wrong could you please give me
1. 4 answers
2. 663 views
Could someone please check my answers. If they are incorrect could you please give me the correct answers or tell me where I
1. 4 answers
2. 754 views
Could someone please check my answers. If they are wrong could you give me the correct answer or tell me where to find
1. 0 answers
2. 929 views
A row of six 1 N wooden blocks is being pushed across a tabletop at a constant speed by a tow tractor that exerts a force of 1.3
1. 0 answers
2. 649 views
I read over my answers and re-done them, could someone please check them again for me.. Thanks in advance1. By creating a
1. 6 answers
2. 828 views
Would someone check my answers please, thanks for any help..1. By creating a committee on social welfare, the American
1. 3 answers
2. 802 views
is the acceleration of a child sitting near the center of a merry go round larger than the acceleration of a child sitting near
1. 1 answer
2. 473 views
is the acceleration of a child sitting near the center of a merry go round larger than the acceleration of a child sitting near
1. 1 answer
2. 530 views
A 60.0 kg runner expends 355 W of power while running a marathon. Assuming that 8.00% of the energy is delivered to the muscle
1. 1 answer
2. 632 views
A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Two metallic
1. 2 answers
2. 818 views
A spherical steel ball bearing has a diameter of 2.540 cm at 24°C.(a) What is the diameter when its temperature is raised to
1. 2 answers
2. 1,205 views
A brass ring of diameter 10.00 cm at 19.9°C is heated and slipped over an aluminum rod of diameter 10.01 cm at 19.9°C. Assume
1. 0 answers
2. 945 views
(a) An ideal gas occupies a volume of 1.6-cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the
1. 3 answers
2. 1,479 views
A potter's wheel having a radius 0.55 m and a moment of inertia 11.6 kg·m2 is rotating freely at 55 rev/min. The potter can
1. 1 answer
2. 1,166 views
A rubber ball filled with air has a diameter of 25.1 cm and a mass of 0.618 kg. What force is required to hold the ball in
1. 2 answers
2. 1,236 views
A satellite moves in a circular orbit around Earth at a speed of 4390 m/s(a) Determine the satellite's altitude above the
1. 2 answers
2. 795 views
A satellite moves in a circular orbit around Earth at a speed of 4390 m/s.(a) Determine the satellite's altitude above the
1. 2 answers
2. 782 views
Objects with masses of 190 kg and a 490 kg are separated by 0.380 m.(a) Find the net gravitational force exerted by these
1. 1 answer
2. 956 views
During what period of life does immunocompetence develop?
1. 0 answers
2. 406 views
(a) What is the tangential acceleration of a bug on the rim of a 6.0 in. diameter disk if the disk moves from rest to an angular
1. 1 answer
2. 886 views
(a) What is the tangential acceleration of a bug on the rim of a 6.0 in. diameter disk if the disk moves from rest to an angular
1. 3 answers
2. 1,083 views
A car initially traveling at 31.0 m/s undergoes a constant negative acceleration of magnitude 2.00 m/s2 after its brakes are
1. 1 answer
2. 1,042 views
A dentist's drill starts from rest. After 3.00 s of constant angular acceleration it turns at a rate of 2.8 104 rev/min.(a) Find
1. 1 answer
2. 830 views
A skier of mass 76 kg is pulled up a slope by a motor-driven cable.(a) How much work is required to pull him 40 m up a 30°
1. 1 answer
2. 1,486 views
Two blocks, A and B (with mass 50 kg and 100 kg, respectively), are connected by a string. (one mass is on the incline, the
1. 0 answers
2. 1,399 views
Tarzan swings on a 27.0 m long vine initially inclined at an angle of 33.0° with the vertical.(a) What is his speed at the
1. 2 answers
2. 852 views
A 770 N man stands in the middle of a frozen pond of radius 9.0 m. He is unable to get to the other side because of a lack of
1. 2 answers
2. 639 views
When an automobile moves with constant speed down a highway, most of the power developed by the engine is used to compensate for
1. 2 answers
2. 1,579 views
Tarzan swings on a 27.0 m long vine initially inclined at an angle of 33.0° with the vertical.(a) What is his speed at the
1. 4 answers
2. 1,065 views
Ok so this question was posted before but I'm confused by the answer. The problem is: The two masses (m1 = 5.0 kg and m2 = 3.0
1. 1 answer
2. 647 views
For every 25 mm of rain falling on the avarage home, 5000 L runs off the roof. Some people use barrels to collect this rain
1. 1 answer
2. 559 views
We are learning Indirect object pronouns and I need help with the following questions.Traduce las frases al espanol. 11. He
1. 2 answers
2. 557 views
I don't remember my instructor going over this and the book isn't explaining it very well. Can anyone help answer these?Indicate
1. 2 answers
2. 6,007 views
I'm not sure how to answer this question....Assume that magnesium would act atom-for-atom exactly the same as copper in this
1. 1 answer
2. 930 views
Does this look correct? Thx!Write the balanced equation for the reaction between solid copper and silver nitrate, that produces
1. 1 answer
2. 634 views
3 facts about motion
1. 4 answers
2. 547 views
how do i find the perimeter of a triangle with missing measurements? i have no clue how to do this!
1. 1 answer
2. 410 views
A man is walking away from a lamppost with a light source h = 6 m above the ground. The man is m = 1.5 m tall. How long is the
1. 1 answer
2. 2,870 views
Something that is tangential to getting good results:a. drinking tea b. proper planning c. paying attention d. working hard a.
1. 8 answers
2. 638 views
My teacher says to take booknotes on To Kill a Mockingbird but I don't know what booknotes are?
1. 1 answer
2. 387 views
I am just editing my essay for my one class and this is a question I always get stumped on which is the proper way.Would a comma
1. 1 answer
2. 513 views
At what rate will $150 double itself in 14 years? do I solve this?
1. 1 answer
2. 387 views
Consider the graph of the equation y=ax^2+bx+c, when a does not equal 0. If a is multiplied by 3, what is true of the graph of
1. 2 answers
2. 3,071 views
What is the probability of selecting a boy and a girl if their are 7 girls and 3 boys.
1. 1 answer
2. 537 views
describe what happens to the graph of y=X^2 in the following situations.a. y is replaced with (y+1) b. x is replaced with(x-5)
1. 0 answers
2. 500 views
Prove: if th bisector of an angle whose vertex lies on a circle passes through the center of the circle, then it is the
1. 3 answers
2. 1,453 views
Zn(OH)2 solid (molecular mass = 99.41 amu) is added to 0.500 L of 0.50 M HBr. The resultant solution which is acidic, requires
1. 1 answer
2. 742 views
You dissolve 157.1 g of ammonium nitrate in a 250 mL volumetric flask and add water to the mark (call this solution A). You take
1. 0 answers
2. 654 views
1. You dissolve 157.1 g of ammonium nitrate in a 250 mL volumetric flask and add water to the mark (call this solution A). You
1. 0 answers
2. 681 views
Part 1 Chapt 41. You dissolve 157.1 g of ammonium nitrate in a 250 mL volumetric flask and add water to the mark (call this
1. 0 answers
2. 769 views
what is the longest multiplication combination for 120
1. 5 answers
2. 765 views
what part of speech is about?what part of speech is (is)?
1. 1 answer
2. 476 views
How do I write a movie title in an essay? I am trying to write about the giant keyboard in the movie BIG. Do I put quotes around
1. 1 answer
2. 963 views
What mammal order has the following dental formula 006/406
1. 1 answer
2. 415 views
How would I graph the inequality x<2y-y^2 or is there even a way that I could graph it?
1. 1 answer
2. 497 views
I need help with these probability problems.1). Five chips are selected from a bag without replacement. The bag originally
1. 2 answers
2. 1,042 views
I need help with this problem:Two planes start from Los Angeles International Airport and fly in opposite directions. The second
1. 3 answers
2. 1,108 views
I need help solving this logarithmic equation: ln x + ln (x+3) = 1.I know ln x + ln (x+3)=ln [x(x+3)] and that is ln x^2 + 3x
1. 2 answers
2. 453 views
How would I find the expression of the nth term sequence given the terms of 2, 1, 4/5, 5/7, 6/9 and the expression of the nth
1. 1 answer
2. 625 views
You're supposed to graph each equation when,2x+3y=9
1. 1 answer
2. 333 views
What happens when a cold surface water current collides with a warm surface water current?
1. 3 answers
2. 358 views
A particle is moving at some constant speed. Use the following information to answer the following questions.s(t)=100/t©÷+12;
1. 1 answer
2. 1,008 views

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