Saira

A 2.00 ml sample of an aqueous solution of hydrogen peroxide, H2O2 (aq) is treated with an excess of Kl (aq). The liberated I2 requires 12.40 mL of 0.1025 M Na2S2O3, for its titration. Is the H2O2 up to the full strength (3% H2O2 by mass) as an antiseptic...

17 years ago

A 1.082 g sample of a component of the light petroleum distillate called naptha is found to yield 3.317 g CO2 and 1.584 g H2O on complete combustion This particular compound is also found to be an alkane with one methyl group attached to a longer carbon c...

16 years ago

Please double check one last time have to hand it in tomorrow.Thank-You in Advance. This was the lab experiment: ------------------------------------------- A. Standardization of the Sodium Thiosulfate Solution Make up a standard solution of potassium iod...

16 years ago

Sensory Physiology Pick two types of sensory receptors: A. Pick two different modalities that would stimulate them B. Put these modalities in order with respect to adequate stimulus So if i was to pick, Photoreceptors and Thermoreceptors ( these would be...

16 years ago

Suppose that the microwave radiation has a wavelength of 12.4 cm. How many photons are required to heat 255 mL of coffee from 25.0 C to 62.0 C? Assume that the coffee has the same density, 0.997 g/mL, and specific heat capacity, 4.184 J/(g/ K), as water o...

16 years ago

Molecular Orbitals 1.Which of the following diatomic species are paramagnetic and which are diamagnetic? a.C2^2+ b.B2^2- c.Li2^- 2.Arrange the following in order of decreasing stability. a.F2 b.F2^- c.F2+ I know that as you go to higher subshells like fro...

16 years ago

1.HOW do you state the amplitude, period, phase shift and vertical shift for the function y= 2sin[4(angle symbol)-pie/2]-5? 2. Describe the function y= -5sin4 (angle symbol+30degrees)-4 as a transformation of the function y= sin(angle).

16 years ago

The Chemicals are: Baking Soda- NaHC03 Calcium Chloride- CaCl2 Bromothymol Blue - (acid base indicator) _______________________________________ What is: (a) The equations for the dissolution of calcium chloride and sodium bicarbonate in water (b) Look up...

16 years ago

1. The vapor pressure of dichloromethane, CH2Cl2, at 0C is 134mmHg. The normal boiling point of dichloromethane is 40C. Calculate its molar heat of vaporization The answer is in kilojoules per mole. I know i use the Clausius-Clapeyron equation but i don't...

16 years ago

Rank these liquids by their expected surface tension. Rank from greatest to least surface tension. 1.CH3CH2OCH3 2.CH3CH2CH2-OH 3.CH3CHOHCH2-OH 4.HO-CH2CHOHCH2-OH So as Dr. Bob mentioned to me before surface tension is how the surface molecules stick toget...

16 years ago

Hi, i actually posted this up before..please double check the answers if i got them right have to hand in on Wednesday: The Chemicals are: Baking Soda- NaHC03 Calcium Chloride- CaCl2 Bromothymol Blue - (acid base indicator) _______________________________...

16 years ago

What mass of ethylene glycol C2H6O2, the main component of antifreeze, must be added to 10.0 L water to produce a solution for use in a car's radiator that freezes at -23C? Assume density for water is exactly 1g/mL. First we find out the freezing point: =...

16 years ago

1.SOLUBILITY: At 25C, the molar solubility of calcium phosphate in water is 1.1*10^{-7}M. Calculate the solubility in grams per liter. I m not sure how to convert M to g/L MOLAR MASS OF COLLIGATIVE PROPERTIES: 2.tert-Butyl alcohol is a solvent with a Kf o...

16 years ago

How do you find out the coordination number of a crystal? For example im given a picture of the crystal structure of lithium sulfide Li2S. SO i need to find coordination number for: Li^+ S^2-

16 years ago

How would i calculate the density of Li2S in grams per cubic centimeter? I have to use the equation : density= mass/ volume: But i don't know how to find out the volume using the edge length of the unit cell which is 5.88* 10^2 pm.

16 years ago

I posted this up yesterday: I have to use the equation : density= mass/ volume: But i don't know how to find out the volume using the edge length of the unit cell which is 5.88* 10^2 pm. CHemistry....Please help - DrBob222, Sunday, January 25, 2009 at 10:...

16 years ago

The "REVERSIBLE" chemical reaction- A + B <--> C + D Kc = CD / AB =4.4 Concentration at the start and after equilibrium- A = 1.00 M --> (1.00 - X) M B = 2.00 M --> (2.00 - X) M C = 0.00 M --> X M D = 0.00 M --> X M 4.4 = X^2 / (1.00-X)(2.00 - X) I'm not s...

16 years ago

Le Chateleir`s Principle Please check if my answers are right and i dunt know some of them: Consider the following system at equilibrium: A(aq)+B(aq) <---> 2C(aq) Classify each of the following actions by whether it causes a leftward shift, a rightward sh...

16 years ago

I have a midterm next week so i just wanted to make sure i understand: When we have a solid in a equation like: A(s)<---> B(g)+ C(g) and we add more A why do the equilibrium not change and remain the same

16 years ago

Given the two reactions 1.PbCl2 <--->Pb^2+ + 2 Cl^-, K1= 1.82×10^−10 2. AgCl <----> Ag^+ + Cl^-, K2 = 1.15×10−4 what is the equilibrium constant Kfinal for the following reaction? PbCl2+ 2 Ag^+ <---> 2AgCl+ Pb^2+ This is what i have soo far: PbCl2<--->Pb2...

16 years ago

A mixture initially contains A,B, and C in the following concentrations: A1 = 0.300 M, B1 = 1.15M, and C1 = 0.350 M. The following reaction occurs and equilibrium is established: A+2B <---> C At equilibrium, A2 = 0.190M and C2 = 0.460M. Calculate the valu...

16 years ago

Lead metal is added to 0.140 Cr^3+(aq). Pb(s)+ 2Cr^3(aq)<---> Pb^2+(aq)+2Cr^2+(aq) KC=3.2*10^{-10} A. What is Pb^2+ when equilibrium is established in the reaction? B. What is Cr^2+ when equilibrium is established in the reaction? C. What is Cr^3+ when eq...

16 years ago

How would i solve for Y: 3.2*10^-10= (y)(2y)^2/ (0.140-2y)^2

16 years ago

Given the equilibrium constant values: 1.N2(g)+ 1/2O2(g)<---> N2O(g) KC=2.7*10^{-18} 2.N2O4(g)<----> 2NO2(g) KC= 4.6*10^{-3} 3. 1/2N2(g)+ O2(g)<----> NO2(g) KC=4.1*10^{-9} ----------------------------- 2N2O(g)+ 3O2 (g) <----> 2N2O4(g) I need help i dunt k...

16 years ago

We actually talked about this before just to remind you im posting the previous post below: ______________________________________________________ ____________________________________________________ And i have a different question regarding a post someon...

16 years ago

I posted this below and received help but im still lost and worked out the problem but am getting the wring answer: -------------------- Given the equilibrium constant values: 1.N2(g)+ 1/2O2(g)<---> N2O(g) KC=2.7*10^{-18} 2.N2O4(g)<----> 2NO2(g) KC= 4.6*1...

16 years ago

Hey i have a mid term today at 3 , and this one sample question my prof posted online. If someone can please show me how to get the answers i would really appreciate it: A plant cell is found to have a Ψs = - 0.7 MPa and a Ψp = 0.5 MPa. Is this cell turgi...

16 years ago

1)which shapes are polygons. 2)which shapes have atleast one curved side.if you know this please help me as soon as posible because this is my homework

16 years ago

which countries were part of the triple entente in the first world war one?

16 years ago

Question.. Nicotinic acid (niacin) is a monoprotic acid with the formula HC6H4NO2. A solution that is 0.012M in the nicotinic acid has a pH of 3.39 at 25C. what is the acid-ionization constant, Ka and pKa for this acid at 25C? Attempt.. HC6H4NO2 <----> C6...

16 years ago

Write out the Ka and Kb for the biocarbonate ion with chemical equation: Would this be correct: HCO3^-(aq) <--> H+(aq) + CO3^-2(aq) Ka = [H+][CO3-2]/[HCO3- H2O + CO3-2(aq) <--> HCO3-(aq) + OH-(aq) Kb = [HCO3-][OH-]/[CO3-2] Or in my textbook there a chart...

16 years ago

What is the solubility of calcium cholride

16 years ago

What happens to these physical properties as the strength of intermolecular forces increases? My answers are there as well but its not correct Increase or decrease? a) melting point - increases b) vapor pressure-increases c) boiling point- increases d) vi...

16 years ago

My professor gave us these question in call and we solved for it in class, however im not sure how we got the answers. I dunt really understand the concept of intermolecular forces if some can please help me i have a quiz tomorrow. A. For each pair of sub...

16 years ago

Would someone please explain to me what intermolecular forces are. I don't really understand the whole concept.

16 years ago

AT THE SPORT STORE THERE WERE 7 BIKES,1 UNICYCLE,AND 5 CARS PARKED IN THE LOT. HOW MANY WHEELS WERE THERE IN TOTAL? GIVE A NICE EXPLANATION WITH THE ANSWER PLEASE HELP.

16 years ago

A mass of 0.630 g of NaCl is dissolved in 525 g of water. CAlculate the molality. mass of NaCl= 0.630g mass of H20= 525g molar mass of NaCl= 58.44 This is what i did it keeps telling me the answer is wrong. Convert grams to moles of NaCl 0.630 * 1 mol NaC...

16 years ago

Hey guys I did a lab and I have to answer the questions relating to the lab. I did question can someone please check if these are accurate 1. Calculation to Determine the molecular weight of unknown substance Mass of unknown used: 2.0 g Mass of water used...

16 years ago

A protein subunit from an enzyme is part of a research study and needs to be characterized. A total of 0.180 g of this subunit was dissolved in enough water to produce 2.00 mL of solution. At 28C the osmotic pressure produced by the solution was 0.138 atm...

16 years ago

HENRY'S LAW I did the first one im not sure how to do the 2 and the 3rd question. 1. What is the Henry's law constant for CO2 at 20{C}? C=kP K=c/p = 3.70*10^-2/1.00atm= 0.037 2. What pressure is required to achieve a CO2 concentration of 6.00×10−2 at 20{C...

16 years ago

i need help with a rate law question: The reaction is 2ClO2(aq) + 2OH -(aq)---> ClO3-(aq)+ ClO2-(aq) + H2O(l) Experiment 1: [ClO2]0= 0.0500 [OH-]0= 0.100 INITIAL RATE= 5.75*10^-2 Experiment 2: [ClO2]0= 0.100 [OH-]0= 0.100 INITIAL RATE= 2.30*10^-1 Experime...

16 years ago

A beaker with 150 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 5.60 mL of a 0.280 M HCl solution to the beaker. How much will the pH change?...

16 years ago

Imagine that you are in chemistry lab and need to make 1.00 L of a solution with a pH of 2.70. You have in front of you * 100 mL of 6.00×10−2 M HCl, * 100 mL of 5.00×10−2 M NaOH, and plenty of distilled water. You start to add HCl to a beaker of water whe...

16 years ago

A 0.040M solution of a monoprotic acid is 14% ionized. Calculate the Ka for the weak acid. ---------------- so: HX <---> H+ + X- Ka= [H+][X-]/ [HX] Since its a monoprotic acis i know the concentration of H and X will be equal And the HX will be 86% (100%-...

16 years ago

I did an experiment on Buffers: In a polystyrene beaker, mix 20 ml of 0.1M Acetic acid ad 25 ml of 0.1 M sodium acetate and immediately measure the pH. Remove the electrode and add 5 ml of 0.1 M HCL to this buffer. Stir the solution and measure the pH. Th...

16 years ago

A 80.0 mL volume of 0.25 M HBr is titrated with 0.50M KOH. Calculate the pH after addition of 40.0 mL of KOH.

16 years ago

A 80.0 mL volume of 0.25 M HBr is titrated with 0.50M KOH. Calculate the pH after addition of 40.0 mL of KOH.

16 years ago

I actually posted this up before and Gk helped out but i don't understand the steps what do i enter for the pka for the first one? __________________________________________ I did an experiment on Buffers: In a polystyrene beaker, mix 20 ml of 0.1M Acetic...

16 years ago

Hydrolysis of Salt: Using the universal indicator we had to determine the pH of potassium chloride, and the results i got was pH- 7.5 . Now i have to explain this with a equation to show hydrolysis. I dunno how to write it out, but i think KCL should be n...

16 years ago

Buffers- Common Ion effect IS this Correct Calculate the pH of a aqueous solution containing 0.15 M HNO2 and 0.20 M NaNO2 (aq). The Ka of nitrous acid is 4.0*10^-4. HNO2 + H20 <--> NaNO2- + H30^+ Inital 0.15 0.20 X Final 0.15 0.20 Ka= [H30+][NaNO2]/ [HNO2...

16 years ago

I am not really sure how to do this: Calculate the pH when 1.0*10^-3 moles of solid NaOH is added to a) One liter of 9.1*10^ -6 M HCL b) One liter of a solution containig 0.05 M CH3COOH and 0.1 M CH3CooNa

16 years ago

Which of the following mixtures would result in buffered solutions when 1.0 L of each of the two solutions are mixed? a) 0.10 M NaCl and 0.10 M NaNO2 b) 0.10 M NaCl and 0.10 M NH4Cl c) 0.10 M CH3NH2 and 0.15 M CH3NH3Cl d) 0.10 M HCl and 0.05 M NaNO2 e) 0....

16 years ago

factor the equation: -6x^2+15x+36 please show me the steps in answering this problem. thanksss..)

16 years ago

I need help understanding the Principles and Elements of Visual Arts with the help of images which examplify them...

15 years ago

Rank the following ionic compounds by lattice energy. Highest to Lowest LiCl MgO Na2O Beo Na2S

15 years ago

Raoult's Law and Ionic or Organic Solutions At 55.0 C, what is the vapor pressure of a solution prepared by dissolving 62.8 g of LiF in 247 g of water? The vapor pressure of water at 55.0 C is 118 mmHg. Assume complete dissociation of the solute.

15 years ago

explain how village customs today are different than medieval times village customs.please help

15 years ago

what type of games do village people now play.

15 years ago

explain how farms today are different than medieval farms . Compare the farms. list a lot of differences and same things . please help!

15 years ago

how to calculate duration of a balance sheet

15 years ago

Calculate the pH of a 0.10 M solution of barium hydroxide, Ba(OH)2.

15 years ago

Hydrolysis of Salt: Using the universal indicator we had to determine the pH of sodium acetate, and the results i got was pH- 8.5 . Now i have to explain this with a equation to show hydrolysis. I don't know how to write it out but, Sodium is not hydrolyz...

15 years ago

Part A: Unknown Acid use 1gram and mix with 120 mL of distilled water Determine the concentration of the acid by titrating with 0.0998 M of NaOH Concentration of NaOH= 0.0998M Volume of NaOH= 3.5 mL # moles of NaOH= Initial Concentration of Weak Acid- Sho...

15 years ago

IN the polystyrene beaker, mix 20mL of 0.1 M Acetic acid and 25mL of 0.1M Sodium Acetate and immediately measure the pH. Remove the electrode and add 5ml of 0.1 M HCl to this buffer. Stir the solution and measure the pH. _______________ INFO: concentratio...

15 years ago

can you list some smaller words that are in perimeter and litre. thank you

15 years ago

How do i calculate: What is is ΔG° at 25 °C? 2O3(g) → 3 O2(g) ΔH° = -284 kJ ΔS° = 139 J/K i know the equation is: ΔG°= ΔH°- t (ΔS) im not getting right answer

15 years ago

What does fantastical mean? My essay topic is compare the fantastical in Poe and lawrence's "the rocking horse"

13 years ago

Use Brackets. Write Each Expression so that it equals the number in blue. a) 8+2x5 50 b) 6x3+1 24 c) 1+6x3+1 25 d) 2+8x5-1 49 e)7+14\7-5 14 f)12\2x5-4 2 Help Me Please i don't get what to do and how to.... ( \ stands for division)

13 years ago

how can a disabled wheelchair person lead a normal life? how do they cook? etc

12 years ago

when people remember memories after a memory loss, would you call those memories flashbacks or is there a different term? and is it possible for someone to lose memory for a specific event but remember everything after that? what is the term and are there...

11 years ago

If Rita can type 55 words a minute, how many minutes to the nearest minute will it take her to type a 1695-word article?

10 years ago

Tony is 2/3 as old as Pete; the difference in their age is 4 years. How old is Pete?

9 years ago

Draw a flowchart to calculate the average of 50 students in one subject.

9 years ago

My teacher said that Canada’s currently in the expansion phase (from the business cycle), but why is that so? What reasons support this?

7 years ago

i believe its 20 %

17 years ago

tHIS IS WHAT GK POSTED: # Reaction #1 (properly balanced): 2ClO-(aq) + 4H+(aq) + 6I-(aq) –> 3I2 + 2Cl-(aq) + 2H2O Reaction #2 (properly balanced): 2S203^2-(aq) + I2 ---- > 2I-(aq) + S4O6^2- (aq) Moles of S203^2- = (molarity)(volume): (0.032400 mol/L)(__li...

16 years ago

SO it for every 1 mol of ClO3- there is 1 mol of I2 : Therefore, even the NaClO is 0.0008586 multiplied by molar mass is 0.06391 and then multilplied by (100/.05) is 12.78

16 years ago

12.7 is the mass of NaOCL/100 mL bleach ..omg just ignore the 3 i was working on a different question which has KIO3- so mixing every up.

16 years ago

Thank-You so much DrBob.. you really helped a lot..and i had made some typoz up there so that's why some things didn't make sense...and i fixed the problems you told me to before handing it in..Thank- You Once again

16 years ago

NVM got it

16 years ago

Thank You got all the answers

16 years ago

I could think of 1.Elegant- elegance 2.Significant- significance 3.Pleasant- Pleasance 4.Instant- instance Maybe you can come up with the last one

16 years ago

There are so many websites that can answer that for you. Just google it.

16 years ago

The solubilities of the of the compunds i found on the internet the rest from the textbook.

16 years ago

quartz

16 years ago

CORRECTION : molarity = moles of solute (C2H6O2)/ kg of solvent (water)

16 years ago

SO: First we find out the freezing point: =(-23.0)-(0.0_ =-23.0 degrees C Calculate target Colligative Molarity: = -23=1.86 * Cm = 12.37= Cm. i* molality i= 1 12.37= 1*m 12.37= m molality= moles of solute(C2H6O2)/kg of solvent water 12.37m= moles C2H6O2/...

16 years ago

is a statistical procedure by which the results of many studies are combined to estimate the magnitude if a particular effect. So basically it procedure for estimating the magnitude of experimental effects reported by published studies

16 years ago

some good site are: afghan-web info- please or the CIA world fact book. Just google the above links with Afghanistan beside them I think Afghanistan became recognized in 1919 when it was provided full independence

16 years ago

The first Q1 would be ( 1+n)4 = which is the 25 % of the data set and the Q3 would be n(3)/4 = the 75 % of the data : So for Q1 its : n= 10 (1+11)/4 = 3 The 3 is not the q1, this just tells where at what position the number is so the thirds number in the...

16 years ago

corrections first put the numbers is order: And Q3 is (n+1)3/4 3,5,7,7,7,10,12,13,14,16, SO Q1= 7 and Q3= 12(3)/4 = 9 So the 9th number is 14 therefore Q3= 14

16 years ago

its in the textbook solution manual question 13.31, i havent done it yet but if i get a chance to do it before you i will post it up

16 years ago

SO the number is suppose to be that high, i guess i will have to check my significant digits and just go over it once more to see what i get. Thanks

16 years ago

Hey im not really sure, but i had posted it up before and someone helped me here, but i will try my best: The formula you'll need to use for this problem is: Freezing Point = Kf * m Start by calculating the Freezing Point: Freezing Point (-23.0)-(0.0) =-2...

16 years ago

the coordination things i don't know how to do that...if i find out ill let you know thanks

16 years ago

thank you

16 years ago

sorry i made an error in the question it is 23.3 , but thank you so much i will work on the question

16 years ago

lithium i got right is 4 but the sulfide it says when counting sulfide: keeping in mind that another unit cell will be present above this one, so 4 for sulfide is wrong

16 years ago

and how can i find out the mass m in grams of a unit cell of Li2S. when the formula units in the unit cell for Li2S is 4.

16 years ago

haha okay thank you so much

16 years ago

oh k thanks

16 years ago

Thank you i got it

16 years ago

Thank You, It helped with my question

16 years ago

The Values are correct i doubled checked: But when do 1.82 x 10^-10/ (1/1.15×10^−4)^2 = 2.47*10^-18 But it says this answer is wrong

16 years ago

That's right thank you

16 years ago

Never mind i got the right answer worked it out again

16 years ago

* correction 0.140 M Cr^3+(aq).

16 years ago

This is the original post: Posted by Saira on Friday, February 6, 2009 at 6:11pm. Lead metal is added to 0.140 Cr^3+(aq). Pb(s)+ 2Cr^3(aq)<---> Pb^2+(aq)+2Cr^2+(aq) KC=3.2*10^{-10} A. What is Pb^2+ when equilibrium is established in the reaction? B. What...

16 years ago

the 23 i was using my initial temp of the solution..thats what i used

16 years ago

Thank YOu both of you i got the answer

16 years ago

OMG soo many people answered for you in you post right below the : Singapore currency is called Singapore Dollar and the currency code is SGD

16 years ago

OKay SO it would be 2000 * .20 = 400 students You take the percent divde by 100 so: 20/ 100= 0.2 and then times that by the whole number

16 years ago

Sorry entire thing didn't get posted: a.So the answer for is the cell turgid? Yes B. What is the Ψw of this cell? -0.2 C. If this cell were placed in a large beaker of solution ( at atmospheric pressure and with a Ψs = - 0.3 MPa. would the water enter or...

16 years ago

The answer is 20....You solve for X..bring 12 over to the other side. So X= (5/3)* 12

16 years ago

Okay in understand everything except D....SOMEONE PLEASE HELpp

16 years ago

ia m asking which shape has a curve side like the rainbow

16 years ago

thanks u i got that but wasn't sure if its right

16 years ago

THANKS BOBBI

16 years ago

thank you

16 years ago

oops sorry when i multiply (0.002 Litres)(0.138) the answer i get is 0.000276 and kg was an accident

16 years ago

thank you i got the answers

16 years ago

WHen i did it the answers i got was order of reaction m= 2 and k = 4.6 Can someone please double check

16 years ago

[CH3COOH] + [CH3COO-]= 0.100 M pH = pKa + log [CH3COO-] / [CH3COOH] 5.00 = 4.760 + log [CH3COO-] / [CH3COOH] 10^0.24 =1.74 = [CH3COO-]/ [CH3COOH] I have an idea how to solve it but i dunt know how to get the M of CH3COO AND CH3COOH

16 years ago

The word grandmother has 3 syllables

16 years ago

You have to clean your room because its your room not your moms.

16 years ago

The perimeter is the distance around a shape. Add the lengths of all of the sides to find the perimeter. always remember to l times W to get the answer.

16 years ago

Its my classmates and I.

16 years ago

A polygon can be any shape not just shapes with 4 angles. anonymous is right.

16 years ago

OMg iforgot i posted it up befoe sorry

16 years ago

This is what i have so far...The Ka is 1.8*10^-5 so pKa is= -log(1.8*10^-5) = 4.74 pH= pKa+log ([C2H3O2^-]/[HC2H3O2]) = 4.47+ log ([C2H3O2^-]/[HC2H3O2])

16 years ago

Well elemenatry my dear isn't it obvious that the correct choice is B.

15 years ago

Is this Correct? 3Na2S + 2Bi(NO3)3 -->Bi2S3 + 6Na^+(aq)+ 6NO3-(aq) A.) 4.55g/ 78.05= 0.059 moles Na2S 15.0g/ 394.99= 0.038 moles Bi(NO3)3 B.) Na2S= 0.059/ 3= 0.019 Bi(NO3)3= 0.038/ 2= 0.019 (Just for general knowledge if this was a different question, and...

15 years ago

So its deltaTf = Kf * m m= 9.70°C/-1.86°C kg/mole = 5.2515 m (molality) What i'm not sure about is, if Delta Tf= in this equain is tfinal-t initial or its the freezing point as ypu mentioned .5C

15 years ago

Thanks Ms.sue!!!

15 years ago

Before farms before did not have electronics so it was hard to to work.Also Farmers did not use fertilizers so it also was hard to grow crops.And there is more about the lord and peasants.

15 years ago

You have GREATER chance with box b because there is only 1 yellow marble and there is 2 red marbles so most of the marbles are red,but box a has almost the same amount of red and yellow marbles.

15 years ago

Yes they go together

15 years ago

perimeter: meter ,merit litre:let

15 years ago

i also cant figure words for decades

15 years ago

decades:sad ,dad ...

15 years ago

nvm i got it had to conver delta S J/k to kj/k

15 years ago

50 24 25 49 14 2 = numbers in blue in my textbook

13 years ago

thnx

13 years ago

Whats the answer?

9 years ago

What's the answer then?

9 years ago

A spool has a radius of 5cm . A string is 8.8 m long. How many times can the string be wound around the spool?

9 years ago

Answer is 75

8 years ago

-50

7 years ago

Find the least number by which 21168 must be divided in order to yeild a perfect square

6 years ago

First class

3 years ago