lili
This page lists questions and answers that were posted by visitors named lili.
Questions
The following questions were asked by visitors named lili.
week 11 and 12 its hard
17 years ago
the surface area of a sphere if the radius, r, is 6 meters.
17 years ago
come cambiare la scuola
17 years ago
when was willian (Bill) H. Gates born?
16 years ago
What would be the effect of raising the temperature and increasing the carrier gas flow rate on the ability to resolve two closely spaced peaks?
16 years ago
Can you suggest some possible reasons for using a mixture of water and ethanol (1:1 mixture H2O/EtOH) as crystallizing solvent rather than using either pure ethanol or pure water?
16 years ago
given: angle 1 is congruent to angle 2, angle measure 1=120 prove: angle measure 3=120
16 years ago
express the given repeating decimal 0.159159159 as a fraction
15 years ago
a girl delivering newspaper travels 3 blocks west, four blocks north, then 6 blocks east. What is the total distance she travel
14 years ago
The reaction of MnO4- with oxalic acid (H2C2O4) in aciic solutiob, yielding Mn2+ and CO2 gas, is widely used to determine the concentration of permanganate solutions. (a) write a balanced equation for the reaction would it be MnO4- + H2C2O4 --> Mn2C2O4 +...
14 years ago
Balance the following redox equation occurring in a basic solution: AG + CN{-} + O2 = AG(CN)2{-} I tried...but this is wrong...2H2O+ AG + CN{-} + O2 = AG(CN)2{-}+4OH{-}... I am supposed to do half reactions...how do I spit the product AG(CN)2{-}?????
14 years ago
(AAAAA)The standard reduction potentials of lithium metal and chlorine gas are as follows: (for Li, reduction potential is -3.04, for Cl it is 1.36) In a galvanic cell, the two half-reactions combine to 2Li{+](s) + Cl{-}2(g) --> 2Li{+}Cl{-}(aq) Calculate...
14 years ago
Find the theoretical yield when 100 mL of 0.1 M NaI is reacted with 0.50 mL of Br2 (density: 3.10 g/mL) to produce NaBr and I2. What is the actual yield if the percent yield is 81%? (Atomic masses (g/mol): Na, 22.99; I, 126.9; Br, 79.90)
14 years ago
I am a 3 digit odd umber. my tens digit is one less than my hundreds digit but two more than my ones digit. The sum of my digits is 20. who am I?
13 years ago
A metallic surface emits photo electrons when green light falls on it. But the metal does not emit when yellow light falls on it. Which of the following is correct when red light falls on the metallic surface?
13 years ago
nearest tenth of a percent of 1/260
13 years ago
when 2 propanol was used as the developing solvent, two substances moved with the solvent front (Rf=1) during TLC analysis on a silica gel plate. can you conclude that they are identical? if not what additional experiments would you perform?
13 years ago
An astronaut throws a wrench in interstellar space. How much force is required to keep the wrench moving continuously with constant velocity? Select one of the options below as your answer: A. a force equal to its weight on Earth B. a force equal to zero...
12 years ago
find all real zeros of the function y=-7x+4. a.-4/7 b.-7,4 c. -7 d.4/7 how do you find it?
12 years ago
find an equation in slope-intercept form of the line that has slope 2 and passes through point A(-8,7)
12 years ago
2x^2-4X-3=6
12 years ago
A SUPPOSED TREASURE OF OLD SILVER JEWELRY IS UNCONVERED. a.02M^3 BOX OF THE "OLD JEWELRY" HAS A MASS OF 177KG.IS IT R EALLY OLD SILVER? IF NOT WHAT IS IT?
12 years ago
1) A billboard on level ground is supported by a brace, as shown in the accompanying diagram. The measure of angle A is 15 degrees is greater than twice the measure of Angle B. Determine the measure of Angle A and the measure of angle B.
12 years ago
the brakes of a car provide an acceleration of -5.0 m/s^2 . how long will it take for a car traveling at 20.0 m/s to stop ?
10 years ago
How has Britain’s political system impacted Canada’s political system
10 years ago
one half of what john's age was 4 years ago is equal to on of thrid of what it will be in 5 years time.How old is john now
9 years ago
A horizontal force of 160 N is used to push a 49.0 kg packing crate a distance of 7.00 m on a rough horizontal surface. The acceleration of gravity is 9.81 m/s If the crate moves with constant velocity, calculate the coefficient of kinetic friction.
9 years ago
covert 1/3,3/10,0.03,0.33 in order from least to greatest
9 years ago
James uses 1/3 of his land for growing durians, 1/4 for guavas, 3/8 for bananas and 9 hectares for mangoes. what is the total area?
8 years ago
a bank is owed $123 in interest on each of 24 customers loans. would this be best represented as a possible or negative value for the bank? how much are they owed in total.
8 years ago
The balance is a checking account is $82.18 the owner of the account withdraws $100 the bank allows withdrawing more than the balance but charges a $33 fee. What is the new balance in the account?
8 years ago
after a birthday party that began with 3 pizzas, there was 1/8 of one of them left, 3/4 of another and 3/8 of the last one. How much pizza was eaten?
8 years ago
you have 3/4 gallons of paint. Each piece of wood you want to paint requires 2/11 gallon of paint. How many pieces of wood can you paint completely?
8 years ago
two thirds of the students at school prefer beats headphones to all others.3/4 of those students prefer the wireless ones. 1/5 of those students prefer the pink ones. what proportion of students prefer the pink, wireless beats headphones?
8 years ago
a concert hall has 4000 seats. these seats are divided into section A and B. the cost of a ticket in section A Is $50 and that of section B is $40. assuming that all the seats are occupied determine the number of seats to be allocated to each section so a...
4 years ago
Helppppppppp Ms. Goynes, Mrs. Weatherly, and Ms. Washington had $400 to purchase raffle prizes for their classes. They bought 23 wireless mice and 23 headphones. Each wireless mouse cost $3.49, and each headphone cost $9.99. How much money did they have l...
4 years ago
I need help, The 17 students on the basketball team want to raise $263.84 to buy basketballs. They have already raised $45.56. If each student raised the same amount, how much more money must each student raise?
4 years ago
A kicker punts a football from the very center of the field to the sideline 39 yd downfield. What is the magnitude of the net displacement of the ball? (A football field is 55 yd wide.) What is the angle of the net displacement of the ball from a line dow...
4 years ago
A child and sled with a combined mass of 50.0 kg slide down a frictionless hill that is 7.34 m high. If the sled starts from rest, what is the mechanical energy of the system, and what is the sled’s speed at the bottom of the hill?
4 years ago
Calvin is using the formula A=3r^2 to estimate the area of a circle. Solve for r Use your equation to estimate the radius of a circle with an approximate area of 300 cm^2
4 years ago
How many grams of HCl (FW = 36.5g/mol) will be required to completely neutralize 4.0 grams of NaOH (FW = 40g/mol)?
3 years ago
Which integer is the farthest from 0 and therefore has the greatest absolute value?
3 years ago
Answers
The following answers were posted by visitors named lili.
the surface area of a sphere if the radius, r, is 6 meters.
17 years ago
what's the answer
16 years ago
what 1min 38.29
14 years ago
can you teach me how to do math? please
15 years ago
For constructive interference d sinQ=ml=2x460nm=920nm For destructive interference of the other light, we have d sinQ=(m’+1/2)l When the two angle are equal, then 920nm=(m’+1/2)l l=1.84x103 nm for m’=0 l=613 nm for m’=1 l=368 nm for m’=2 The only waveleng...
15 years ago
39.16
15 years ago
sol. ass 5% + ? apa distilata = sol. hipochloride 4%
15 years ago
mol HA + NaOH --> NaA + H2O i x 0.030 f x-0.030 0 0.030 pH = pKa + log(0.030/x-0.030) x = 0.042 mol PM=5.5g/0.042mol = 129.1 g/mol
14 years ago
oh never mind--I got it!!! (I did half reactions...)
14 years ago
I think I understand...but how do I do CN- reactant? do I do a half reaction too?-->with a product of CN2???
14 years ago
the answer is 4AG + 8CN{-} + O2 + 2H2O=> 4AG(CN)2{-} + 4OH{-} I do not understand the plugging in of CN. COuld You please explain?
14 years ago
Great! The CN was the spectator that did "nothing." thank you very much.
14 years ago
6(5)-3(5)^2+3^3=-18
14 years ago
i have first part. If u have a second, wy can exchange.
12 years ago
why is the heat lost by the metal sample (Ql)equal to he heat gained by the water in the calorimeter (QG)?
12 years ago
5x4x3
12 years ago
I did but can't find anything related
10 years ago
it is 12/35
8 years ago
Ans 1) third option which is the study of interactions among organisms and their environment.
8 years ago
negative 15.18
8 years ago
negative 120.82
8 years ago
yes that's what I mean
8 years ago
a bank is owed $123 in interest on each of 24 customers loans. would this be best represented as a positive value or negative value for the bank? how much are they owed in total.
8 years ago
33/8
8 years ago
7/8 ??
8 years ago
nevermain is it 7/4
8 years ago
you can paint 4 pieces of wood
8 years ago
$2952??
8 years ago
the whole pizza
8 years ago
74
7 years ago
sup
7 years ago
0.25
6 years ago
someone tell me pls idk
5 years ago
why were the colonist upset about the proclamation line
4 years ago
I'm also new here but I need an answer asap
4 years ago
I was able to figure out "What is the magnitude of the net displacement of the ball? " It is 48 yd I only need help with "What is the angle of the net displacement of the ball from a line down the center of the field?" thanks
4 years ago
Calvin is using the formula A=3r^2 to estimate the area of a circle. Solve for r Use your equation to estimate the radius of a circle with an approximate area of 300 cm^2
4 years ago
Commutative property of addition
3 years ago