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. 152 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. 212 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. 220 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. 786 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. 628 views
i dont know how to do this please help!!!!!!!!!!!!!//-8+4/-/3-9//
1. 3 answers
2. 234 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. 336 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. 374 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. 680 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. 601 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. 8,293 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. 11,217 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. 872 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. 813 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. 551 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. 11,745 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. 615 views
Please could you check my grammar. thanks1.Other Color Print Price, depending on the image’s size
1. 2 answers
2. 454 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. 565 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. 470 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. 4,657 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. 874 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. 3,868 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. 5,879 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. 1,497 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. 1,710 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. 721 views
In an extensive study involving thousands of British children, Arden and Plomin (2006) foundsignificantly higher variance in the
1. 0 answers
2. 805 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. 4,280 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. 444 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. 475 views
Given the following solubility constants, which list arranges the solutes in order of increasing solubility?CaCO3: Ksp = 2.8 ×
1. 1 answer
2. 1,615 views
Given the equilibrium concentrations in the table, what is the equilibrium constant for the synthesis of ammonia at this
1. 1 answer
2. 670 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. 996 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. 735 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. 668 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. 821 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. 488 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. 3,929 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. 1,789 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. 4,351 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. 1,412 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. 1,845 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. 1,880 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. 1,480 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. 573 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. 750 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. 590 views
What is the equilibrium expression for the change when iron(II) chloride dissolves?FeCl2(s) Fe2+(aq) + 2Cl-(aq)
1. 2 answers
2. 1,689 views
What is the equilibrium expression for the following acid dissociation reaction?CH3COOH + H2O CH3COO- + H3O+ A.
1. 0 answers
2. 935 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. 571 views
solve the system of equations for x and y{ x^2 - 11x -y =-24 x^2 - 11x + y = -24
1. 2 answers
2. 688 views
evaluate the expression(94) (93) a. 94 b. 93 c. 1 d. 88 e. -5
1. 0 answers
2. 338 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. 833 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. 452 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. 411 views
What is the equilibrium expression for the following acid dissociation reaction?CH3COOH + H2O CH3COO- + H3O+ A.
1. 1 answer
2. 1,526 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. 589 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. 444 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. 9,562 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. 3,582 views
Knowing what information would allow you to order gas molecules according to their velocity?A. Pressure and temperature B.
1. 2 answers
2. 2,361 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. 2,312 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. 590 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. 1,275 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. 414 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. 589 views
AN.15,2016From: Genecito Jimenez Dear sir/madam, The JIMENEZ INTERNET CAFE has been operating the business started last
1. 1 answer
2. 670 views
Computers shophours 8:00 a.am - 2 a.m.
1. 3 answers
2. 383 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. 553 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. 511 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. 558 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. 435 views
What is the number of unpaired electrons for the following compounds:Cobalt (II) chloride Copper (II) chloride Iron (II)
1. 1 answer
2. 2,159 views
What is the % w/v of 13.2 g of salt dissolved in 264 mL of solvent?
1. 2 answers
2. 375 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. 1,075 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. 501 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. 544 views
please help me.which is correct: 1.Anyone have this experience 2.Anyone has this this experience
1. 1 answer
2. 370 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. 1,085 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. 420 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. 496 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. 1,223 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. 1,796 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. 632 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. 731 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. 2,856 views
kim drew the trapezoid below.find the measure of <rts in degrees
1. 0 answers
2. 373 views
4c(11-c²) distribute the multiplication over the addition
1. 1 answer
2. 293 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. 910 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. 852 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. 1,279 views
when two perpendicular lines intersect, do they form four congruent angles?
1. 1 answer
2. 751 views
when two perpendicular lines intersect, do they form four congruent angles?
1. 1 answer
2. 908 views
The image of the point (1, -2) after a rotation of 180° about the origin is
1. 0 answers
2. 547 views
The image of the point (1, -2) after a rotation of 180° about the origin is
1. 0 answers
2. 513 views
The image of the point (1, -2) after a rotation of 180° about the origin is
1. 1 answer
2. 977 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. 632 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. 828 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. 562 views