Questions and answers by

jessie

Questions (265)

x-value%09y-value if y=x+6%0D%0A%0D%0A=%0D%0A%0D%0A+%0D%0A6%0D%0A %09y-value if
1. 1 answer
2. 173 views
given volume and concentration of base & initial volume and pH of acid, find the Ka of the acidInitial pH of acid: 2.76 Initial
1. 0 answers
2. 238 views
Please check my grammar below.Starting 9:30pm all studio photograph and printing photos will be collected tomorrow at 9:30am
1. 1 answer
2. 249 views
Change the italicized group of words into the element indicated at the end of the sentence. Then rewrite the sentence.Confused
1. 1 answer
2. 821 views
Which of the following is not part of the theory of evolution?A.Organisms tend to produce more offspring than can survive to
1. 3 answers
2. 671 views
i dont know how to do this please help!!!!!!!!!!!!!//-8+4/-/3-9//
1. 3 answers
2. 250 views
Point A(-10,10) is the midpoint of segment BD. If the coordinate of B are (2, -4), then what are the coordinates of D?
1. 1 answer
2. 350 views
pleasecorrect my english grammar below.I would like to avail company's transportation to drop and pick me up during my working
1. 1 answer
2. 404 views
Read each definition and write the corresponding word or expression.el opuesto (opposite) de seco a) fresco b) dulce c) mojado
1. 7 answers
2. 703 views
Compare the graphs of the inverse variations. Please provide at least 3 comparisons.y = -0.2/x and y= -0.3/x. i found -0.1/x ,
1. 4 answers
2. 636 views
. Is there any bias in the survey question? Explain.What do think would help students pay more attention in class? i don't
1. 5 answers
2. 8,345 views
can yall check my answers?16. identify the sentence in which the underlined pronoun is used incorrectly a. YOU'RE never going to
1. 11 answers
2. 11,269 views
Please help me correct my english grammar below.Dear Sir, Good day, thank you again for your effort in helping me to hire and
1. 1 answer
2. 909 views
Dear Sir,Good day, thank you again for your effort in helping me to hire and working back in the company it would be a great
1. 1 answer
2. 850 views
As cars passed a checkpoint, the following speeds were clocked and recorded.Speed (mph): 55 62 61 54 68 72 59 61 70 what's the
1. 2 answers
2. 591 views
A ball is dropped from a height of 18 m.On each rebound it rises 2/3 of the height from which it last fell. What distance has it
1. 3 answers
2. 11,793 views
Please help me to get the answers for these questions in order to help my niece for their assignment answers correctly. thanksAn
1. 2 answers
2. 660 views
Please could you check my grammar. thanks1.Other Color Print Price, depending on the image’s size
1. 2 answers
2. 484 views
Please help correct my answers for potential interview.what are your strenghts and weaknesses? my greatest strengths is i always
1. 1 answer
2. 606 views
Pleaese correct my answers on the potential interview for telll me about yourself.i'm 48 years old, previously i have been
1. 2 answers
2. 508 views
please help me to correct my anserw below:1. Shhhh! Be quiet! John (sleep) _____. He might hear us from the other room. 1.sleeps
1. 2 answers
2. 4,699 views
please kindly help if my answers below are coorect.thank you. Teacher: So you want to learn _____ English? 1. To Talk 2.Talking
1. 1 answer
2. 912 views
Please help me to correct my answers below.let me know the correct answers. thank you1. Justin (write) _____ his speech for the
1. 2 answers
2. 3,904 views
Please help me to correct my anserw below.thank youPetroleum, or crude oil, is one of the world's (1) _____ natural resources.
1. 4 answers
2. 5,925 views
Please help if my answers are correct and let me know the correct answers below. thank you.Can we see (1) _____ the earth is a
1. 1 answer
2. 1,531 views
Please help me to correct my answers below.let me know the correct answers. thank you1. Justin (write) _____ his speech for the
1. 2 answers
2. 1,752 views
please kindly help if my answers below are coorect.thank you. Teacher: So you want to learn _____ English? 1. To Talk 2.Talking
1. 1 answer
2. 762 views
In an extensive study involving thousands of British children, Arden and Plomin (2006) foundsignificantly higher variance in the
1. 0 answers
2. 839 views
Which of the following statements about the pH scale is not true?A. In a pH expression, the hydronium ions, H3O+, can be
1. 1 answer
2. 4,314 views
When are more products of a reaction available initially than at equilibrium?A. K = 0 B. Q < K C. Q = K D. Q > K
1. 1 answer
2. 479 views
When are more products of a reaction available initially than at equilibrium?A. K = 0 B. Q < K C. Q = K D. Q > K
1. 0 answers
2. 511 views
Given the following solubility constants, which list arranges the solutes in order of increasing solubility?CaCO3: Ksp = 2.8 ×
1. 1 answer
2. 1,656 views
Given the equilibrium concentrations in the table, what is the equilibrium constant for the synthesis of ammonia at this
1. 1 answer
2. 705 views
What change do you expect if the value of the reaction quotient is greater than the value of the equilibrium constant?A. The
1. 0 answers
2. 1,040 views
Which of the following is true about the results of a neutralization reaction?A. An acid and a base form water and salt. B.
1. 1 answer
2. 782 views
What does a buffer do?A. It resists a change in pH when H+ or OH- is added to a solution. B. It prevents an acid-base reaction
1. 1 answer
2. 707 views
Why is HCl required in the stomach?A. To transport proteins into the small intestines B. To help absorb other acids in the
1. 0 answers
2. 858 views
The [OH-] ion concentration of a sample is 1 × 10-10 M. What is the concentration of [H+] in the sample at 25°C?A. 1 × 10-14
1. 0 answers
2. 512 views
Which of the following chemical reactions represents a neutralization reaction?A. CH4 + 2O2 CO2 + H2O B. HCl + NaOH H2O + NaCl
1. 3 answers
2. 3,976 views
Which of the following is true about the results of a neutralization reaction?A. An acid and a base form water and salt. B.
1. 2 answers
2. 1,851 views
What is the general form for the simplest type of acid-base reaction?A. acid + base salt + water B. acid + base base + acid C.
1. 3 answers
2. 4,414 views
A, B, C, and D are 4 salts whose Ksp values are 9.21 × 10-8, 7.44 × 10-11, 1.07 × 10-21, and 38.65, respectively. What is the
1. 2 answers
2. 1,446 views
Acetic acid is known to be a weak acid. What will happen to the acidity of the solution when sodium acetate is added to acetic
1. 3 answers
2. 1,901 views
Which of the following bases could you write an equilibrium expression for?A. Ba(OH)2 B. KOH C. NaOH D. NH3
1. 3 answers
2. 1,910 views
During a chemical reaction, if Q = K, what can be said about the reaction?A. The reaction still proceeds in both directions, but
1. 3 answers
2. 1,517 views
Which of the following is true of the solubility product constant?A. It is the product of the initial concentrations of the ions
1. 1 answer
2. 616 views
Which equation would describe the following equilibrium constant?Kc = [Bi3+]2[S2-]3 A. Bi2S3(s) + 6HCl(aq) 2BiCl3(aq) + 3H2S(aq)
1. 2 answers
2. 793 views
What happens to the following reaction at equilibrium if the pressure is decreased?2H2(g) + O2(g) 2H2O(g) A. The equilibrium
1. 1 answer
2. 635 views
What is the equilibrium expression for the change when iron(II) chloride dissolves?FeCl2(s) Fe2+(aq) + 2Cl-(aq)
1. 2 answers
2. 1,725 views
What is the equilibrium expression for the following acid dissociation reaction?CH3COOH + H2O CH3COO- + H3O+ A.
1. 0 answers
2. 983 views
use the limit process to find the slope of the graph of 'square root' x+8 at (8,4)a. 4 b. 1/4 c. the slope is undefined at this
1. 1 answer
2. 603 views
solve the system of equations for x and y{ x^2 - 11x -y =-24 x^2 - 11x + y = -24
1. 2 answers
2. 725 views
evaluate the expression(94) (93) a. 94 b. 93 c. 1 d. 88 e. -5
1. 0 answers
2. 357 views
find the area of the parallelogram that has the vectors as adjacent sidesu = -2i + j + 5k v = 4i - 3j - 3k a. 11 b. squareroot
1. 1 answer
2. 886 views
determinelim f(x) x -> 1 where f(x) = { 13 - x^2, x < or equal to 1 11 - x, x > 1 a. 11 b. limit does not exist c. 13 d. 10 e.
1. 1 answer
2. 473 views
find the values of x and y that will make the matrix equal[x y] 1 9 = [3 5] 1 9 the answer options are a. x=-3 y=-5 b. x=5 y=3
1. 1 answer
2. 437 views
What is the equilibrium expression for the following acid dissociation reaction?CH3COOH + H2O CH3COO- + H3O+ A.
1. 1 answer
2. 1,571 views
A reaction has an equilibrium constant very much less than 1. Will the reaction proceed spontaneously?A. Yes, because products
1. 0 answers
2. 629 views
If the equilibrium constant is much less than 1, how can you tell where the equilibrium lies?A. Reactants are in the numerator
1. 0 answers
2. 475 views
What information does an equilibrium constant give about a reaction?A. It tells how long it takes the reaction to reach
1. 5 answers
2. 9,608 views
Under constant pressure, a system of gases is sealed in a cylinder and then allowed to expand. What can you conclude about the
1. 11 answers
2. 3,627 views
Knowing what information would allow you to order gas molecules according to their velocity?A. Pressure and temperature B.
1. 2 answers
2. 2,403 views
Which of the following terms are present in the rate law?A. The rate constant, the concentration of the reactants, and the order
1. 2 answers
2. 2,353 views
verify this trigonometric identitycos 'a' - cos 'b' / sin 'a' + sin 'b' + sin 'a' - sin 'b' / cos 'a' + cos 'b' = 0 please help
1. 2 answers
2. 647 views
The formula for rust can be represented by Fe2O3. How many moles of Fe are present in 27.6 g of the compound?
1. 2 answers
2. 1,314 views
February 3,2016Kim Morran Ballabari Dear Mr.Kenneth Jei Javier Se, This is my explanation regarding with my absents from your
1. 1 answer
2. 440 views
if you answered 12 questions correctly on a test with a total of 21 questions, what is the percent of what you go right?
1. 1 answer
2. 629 views
AN.15,2016From: Genecito Jimenez Dear sir/madam, The JIMENEZ INTERNET CAFE has been operating the business started last
1. 1 answer
2. 691 views
Computers shophours 8:00 a.am - 2 a.m.
1. 3 answers
2. 405 views
Please help me to arrange correct grammar below:Nov. 18,2015 Please be informed that starting on Nov.23, 2015 Due to high
1. 2 answers
2. 589 views
Please help me correct grammar.Please be informed that starting on Nov.22,2015. Due to high consumptiom for the lectric bills.
1. 1 answer
2. 549 views
Please help correct grammar sentence below:1. Please be informed that starting on Nov.22,2015 rate of internet charge will be
1. 2 answers
2. 599 views
At 350 feet from the base of a cliff, a surveyor sights the top of it at an angle of 300 301. Find the cliff from horizontal.
1. 1 answer
2. 468 views
What is the number of unpaired electrons for the following compounds:Cobalt (II) chloride Copper (II) chloride Iron (II)
1. 1 answer
2. 2,210 views
What is the % w/v of 13.2 g of salt dissolved in 264 mL of solvent?
1. 2 answers
2. 396 views
How many grams of Pb(IO3)2(s) are precipitated when 27.0 mL of 3.00 M Pb(NO3)2(aq) are mixed with 30.0 mL of a 5.00 M KIO3(aq)
1. 2 answers
2. 1,110 views
Oct. 1, 2014To Whom It May Cocern During my absence I hereby authorize Mr. Rame Ahmed Mostafa / Sandra Marquez to transact all
1. 2 answers
2. 537 views
please help me if this is correct in grammar.please correct so that i will know the correct grammar. 1.Anyone have done this
1. 1 answer
2. 577 views
please help me.which is correct: 1.Anyone have this experience 2.Anyone has this this experience
1. 1 answer
2. 420 views
It is important to be as far away from the cliff as possible before opening the parachute. How far from the cliff is this jumper
1. 1 answer
2. 1,114 views
Please help me which one is coreect in grammar and please explain me.1.She was moving to singapore on June 2012 for job
1. 1 answer
2. 452 views
please help me to correct my english grammar the letter below..I mr. Maria lopez bonafide borrrower of housing loan through pag
1. 1 answer
2. 535 views
an object has an acceleration of 12.5 m/s2. if the net force experienced by the object is decreased by a factor of 4.5 then what
1. 1 answer
2. 1,256 views
Determine whether each sequence is arithmetic or geometric. Find the next three terms.1. 14, 19, 24, 29, . . . (1 point)
1. 6 answers
2. 1,848 views
5. Air is a good conductor of heat. (1 point)true false 6. When you hold a ball above the ground it has kinetic energy. (1
1. 1 answer
2. 662 views
2. A device that can be used both for cooling and heating is a _____. (1 point)heat engine compressor heat pump vaporizer 3. All
1. 3 answers
2. 780 views
1. The thermal energy of an object is _____. (1 point)its potential energy its average kinetic energy its potential energy minus
1. 7 answers
2. 2,916 views
kim drew the trapezoid below.find the measure of <rts in degrees
1. 0 answers
2. 395 views
4c(11-c²) distribute the multiplication over the addition
1. 1 answer
2. 313 views
If you had a Iscocles triangle bca and the vertex c was 21y+13 and <b was 6y+1 would <a be congruent to <b since it states that
1. 1 answer
2. 941 views
4. Small pieces of rock that enter Earth's atmosphere at speeds of 15 to 70 km/s and burn up are called ____. (1 point)stars
1. 4 answers
2. 884 views
1. Scientists hypothesize that the sun formed ____. (1 point)less than a billion years ago from a cloud of gas and dust less
1. 5 answers
2. 1,322 views
when two perpendicular lines intersect, do they form four congruent angles?
1. 1 answer
2. 775 views
when two perpendicular lines intersect, do they form four congruent angles?
1. 1 answer
2. 937 views
The image of the point (1, -2) after a rotation of 180° about the origin is
1. 0 answers
2. 573 views
The image of the point (1, -2) after a rotation of 180° about the origin is
1. 0 answers
2. 542 views
The image of the point (1, -2) after a rotation of 180° about the origin is
1. 1 answer
2. 1,009 views
a 40g piece of ice at 0.0 degrees C is added to a sample of water at 8.0 degrees C.the ice melts and the temp of the water
1. 1 answer
2. 662 views
please help me to corect grammar:Those who are always correcting with other people. They are just showing off and pretending
1. 2 answers
2. 855 views
please help me to corect grammar:.those who are alwasys correcting other people, just showing off and pretending being smart but
1. 1 answer
2. 590 views