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Posts by Eunice

Total # Posts: 57

chemistry
which characteristics of solid, a liquid, and a gas are exhibited by each of the following substances? how would you classify each substance? A. a bowl of pudding will be solid and B. a bucketful of sand wiil be solid

chemistry
when water boils, there is bubbles that rise to the surface of the water. What is inside these bubbles? air

Maths factorise
Factorise 3px-3py-x+y

Math
267

math. PLEASE HELP.
Question: If A= 29 degrees and a= 4.6, find c. There is a diagram shown in the textbook. b is adjacent, c is the hypotenuse, and a is opposite. I know I'm suppose to use SOH CAH TOA, and i tried using tan, but Im not getting the correct answer. i looked in the back of the ...

CHEMISTRY
Calculate the hydroxyl ion concentration in a solution of almond extract ofph.3.8 state wether almond is acidic or basic

Life orientation
I have a right to basic education.

Life orientation
Three human right violations and two example

physics
A stone propelled from a catapult with a speed of 59meter per seconds attain a height of 100 meter calculate a. the time of flight b. the angle of the projection c. the range attain

HELP:DEVICES
What are some devices that can be used to help the environment? That are made to help the environment?

HELP..which graph should be used?
*I include..

HELP..which graph should be used?
What graph should I use for comparing measurements? should in include a table?

algebra 2
Can someone please help me solve this problem? I do not know how to do it. 2x(squared)+3x+1. And 3ay(squared)+9a?

Science project
Hi, can anyone please propose a science project that has to do with bacteria at a high school level. Any will do.The ones I've looked up online are mostly elementary and I had to search up college level ones..which gave the same results.

math
sofia is 3 years older than Eunice. In 5 years , Sofia will be twice as old as Eunice will then be. Find their present ages.

Science Project suggestions??
I cannot think of an original science project idea. I would really like an original one instead of the online ones which have already have their own procedures and stuff. I would like to do a science project that is has to do with chemistry or computer science. Please help!

Life science
Why are thesa fossils important discoveries?

Chemistry
it is somewhat greater than 280.0g

Math
What is it like to live under a carpet

physics
A slab of wood with mass m=1.7kg floats 78% submerged.the density of water is 1000kg/m.what is the density of the wood?

physics
A solid ball with a mass m=0.53kg floats in a tank of water.The ball is made of material with a density of 400kg/m^3.The density of water is 1000kg/m^3.what fraction of the ball is below waterline?

Life orientatin
Compare in five ways the similarities and the different between nfsas and other student loans

pre cal
you decide to buy a car for 25000. each year your car depreciates in value by 5% from its original value. After 15 years though, your used car will only be worth $500 to a dealership. Write a piece wise function for C(t), car value over time, for this scenario Graph the ...

Algebra
$477000

math 3
96

Introduction to Physics
What is the electric charge on the calcium ion in calcium chloride, CaCl2?

life orientation
In 10-15 lines discuss 10 ways in which pollution impacts on the community.provide references

life orientation
In 10-15 lines critically discuss 5 ways in which the pollution as the environmental problem impacts on the community.provide relevent sources to support your claim

physics
The speed of sound in an ideal gas is given by the relationship • R = the universal gas constant = 8.314 J/mol K, • T = the absolute temperature • M = the molecular weight of the gas in kg/mol •  = the adiabatic constant, characteristic of the ...

Math
Find the present value of $9500 in 6 1/2 years if money earns 7.5% compounded continuously.

physical science
idk

Physics
A wooden plank is inclined at and angle of 23 degrees above the horizontal. A 2.0 kg box attached to a rope is is pulled up the incline. The coefficient of kinetic friction between the box and the wooden plank is 0.15. What does the tension in the rope is the box moves up the ...

Chicago Virtual Charter School
A movie theater charges $7 for adults, $5 for school-age children, and $3 for babies. A group of people went to the theater. There were the same number of school-age children as babies and the number of adults was the same as school-age children and babies combined. If the ...

3rd grade Math
21

english
can someone give me the summary of sherwood anderson's " a death in the woods"?

math
Find the entries of the following matrices: (a) the 2 ×2 matrix M for the reflection across the line y = x. (b) the 2 ×2 matrix N for the 90 degree counterclockwise rotation about the origin. (c) the product MN;what transformation does this represent? (d) the ...

math/geometry pls help
A coin of radius 1 cm is tossed onto a plane surface that has been tesselated by right triangles whose sides are 8 cm, 15 cm, and 17 cm long. What is the probability that the coin lands within one of the triangles?

Geometry
A coin of radius 1 cm is tossed onto a plane surface that has been tesselated by right triangles whose sides are 8 cm, 15 cm, and 17 cm long. What is the probability that the coin lands within one of the triangles?

physics
Two vectors have magnitudes 3.0 and 4.0. How are the directions of the two vectors related given the following conditions? 1) The sum has magnitude 7.0. (a)They both point in the same direction. (b)They each point in opposite directions. (c) They are perpendicular to each ...

physics
(a) How long does it take for a golf ball to fall from rest for a distance of 12.5 m?in seconds (b) How far would the ball fall in twice that time?in meters

chemistry
what is mmHg?

chemistry
how many liters of CO2 are in 50kg of carbon dioxide at STP?

Chemistry 101
Iron reacts with hydrochloric acid to produce iron (2) chloride and hydrogen gas.Fe (s)+ 2 HCL (aq) -FeCl2 (aq) + H2 (g).The hydrogen gas from the reaction 2.2g of iron with excess acid is collected in a 10L flask at 25 degrees celcius. What is the pressure of the hydrogen gas...

Chemistry 101
If 12.0g of molecular oxygen, O2, is required to inflate a balloon to a certain size at 27 degree celcius, what mass of molecular oxygen required to inflate it to the same size and pressure at 81 degree celcius?

Chemistry 101
what is mmHg

Chemistry 101
A gaseous compound has a density of 0.355 g/L at 17 degree celcius and 189 mmHg. What is the molar mass of the compound?

Chemistry 101
You have a sample of gas in a flask with a volume of 250 mL. At 25.5 degrees Celcius, the pressure of the gas is 300 mm Hg. If you decrease the temperture to -5.0 degrees celcius, what is the gas pressure at this lower temperture?

Chem 101
How many liters of CO2 are in 50 kg of carbon dioxide at STP?

Chemisty
What are the factors that cause the difference between measured pH and calculated pH in titration.

social studies
what is the time change and distance from nova scotia to england?

spanish
can you please help me unscramble these two spanish words? codraram,and coyenr. thanks!

literature
Trace and explain in your own words the literary periods We will be happy to critique your work or thinking, but we do not do the work for you. Do you have a question about this assignment? We will be happy to critique your work or thinking, but we do not do the work for you. ...

Literature
A pschoanalytic approach to the reading of literature views conflict and character of any literary work as a reflection of the needs,emotions,status of mind and subconcious desires of the author.By extension,in literature,this approach tries to explain why Oedipus kills he'...

history
do you know any website that tells us anything about the ancient greek's landscapes? Already answered -- above. =) I'm sorry. But I'm a different person then LP. :D Your IP address is identical to LP's, so you're either in the same house or the same school...

Chemsitry
What is the purpose of cell matching? (1 mark) I've been researching for quite a long time now. This question relates to using spectrometry. Can anyone help me? Thanks! I let this question go yesterday because I connected it with cells is biology. On rereading today I see ...

Chemistry
Why does Beer’s Law apply only to relatively dilute solutions and not concentrated ones? Why is it important to take absorbance readings of a solution at its wavelength of maximum absorption? (1 mark) This questions are related to spectrometry. Cana nyone help me with ...

Chemistry - Hybridization
Can anyone help me with this questioin pleasee? Describe the orientation and relative energy levels of sp2 and sp3 orbitals with respect to unhyberdized orbitals (1s, 2s, 2px, 2py, 2pz orbitals) 1s and 2s are spherical. 2px, 2py, and 2pz are at 90o to each other (mutually ...

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