Posts by Emma

Total # Posts: 1,777

Chem please help
When a 0.650 g sample of a mixture of volatile hydrocarbons is burned in a bomb calorimeter with a heat capacity of 4920 J/°C, the temperature rises by 8.50 °C. What is the change in energy (in kilojoules) for the reaction? Calculate the energy change by the combustion...

Algebra
Thank you!

Algebra
Hello! I understand that the answer is 6, but do not know the equation to graph it. I would appreciate any help! I have to use Desmos to graph it. You are making your weekly meal plans and are working with the following constraints: It costs $8 to go to out to dinner. It costs...

Chem
Separate the following balanced chemical equation into its total ionic equation. AgNO3?(aq)+NaCl(aq) --> NaNO3?(aq)+AgCl(s) (List the ions in order of the above equation.) Write the net ionic equation for the reaction above. (Make sure the cation is first and anion is ...

Social studies
2

History
I am going to compare Plato and Gandhi. I find it hard to know what i can compare between the two philosophers. What are the differences and similarities between the two.

Chemistry
What would the net ionic equation be for : HBr (aq) + KOH (aq) = KBr + H2O

Science
Thank you.

Science
Given the parent genotype AaBbCCDDEe, what is the probability of each of these gametes forming? a) ABCDE b) either ABCDE or abCDE Would the answer for a) be 1/8 and for b) be 1/2?

Punnett Square
Given the parent genotype AaBbCCDDEe, what is the probability of each of these gametes forming? a) ABCDE b) either ABCDE or abCDE Would the answer for a) be 1/8 and for b) be 1/2?

Punnett Square
No I’m sorry Would the answer for a) be 1/8 and for b) be 1/2?

Punnett Square
What is the Pr?

Punnett Square
Given the parent genotype AaBbCCDDEe, what is the probability of each of these gametes forming? a) ABCDE b) either ABCDE or abCDE

Physics
A 60 kg person utilizes energy at 0.25 horsepower while running up the stairs of a building. Each step is 20 cm highly. How much work does the person do in one minute?

Math
1.) Is it possible for a composite number to have more than one prime factorization? Is it possible for a number to have no prime factors? Why? 2.) Give an example of how prime factorization could be used in the real world. Thank you to anyone that takes the time to answer ...

Science
how are carbon atoms incorporated into organic molecules by plants?

algebra
Three fourths of a number is less than two hundred four. What are the possible values of the number?

Math
And assembly line worker at robs bicycle factory add to seat bicycle at a rate of two seats in 11 minutes write a proportion relating the number of seats S to the number of minutes M at this rate how long will it take to add 16 seats? 19 seats?

math
what is an alegbraic expression for the followin word phrase: "6 times the difference of b and p"?

AP Chem
For the reaction CH4+ 2 O2 ? CO2+ 2 H2O , what is the maximum amount of CO2 (44.0095 g/mol) which could be formed from 15.3 g of CH4 (16.0425 g/mol) and 6.2 g of O2 (31.9988 g/mol)? Answer in units of g

Math
1 1/4 teaspoons baking powder per 3/8 cup flour, what is the unit rate

Science
Horse lover is right! I got a 100% :)) Ty!

Can anyone check this?
display.cgi?id=1504162458

US university admissions
What activities are accepted by universities as social services? I was a girl guide in my primary grades can I include that as social service? And informal participations at sports and extra-curricular event will be accepted as extra-curricular ?

Trigonometry
Given that sin^2x = 4/13, what is the cos^2x? I am so lost. I need to show my work. Please help. THANK YOU!

Practise questions for SAT subject tests
Is there any useful,good sites to find quality questions for practising for SAT english,math,physics tests ,for free,other than the limited number of questions avilable at the Collegeboard site?

SAT
Thank you very much!

SAT
Could someone kindly tell me what are the subjects we have sit for at the SAT exam, to enter into a ; 1)physics degree(nuclear,quantum etc.) 2)engineering degree Thank you!

To Bobpursley
*to become the best version of myself

To Bobpursley
Thank you very much for your response. I'm a bit concerened about my career as mour local universities don't conduct Nuclear Engineering courses.So even if I want to study beyond Bachelor's Level,I woyld have to study abroad,should find Finacial Aid and all.And of ...

To Writeacher,Bobpursley and Damon
I posted again at my question avilable display.cgi?id=1503490842 I would be glad if you have a look at that. Thank you!

Nuclear Physics
Thank you very much all of you. Actually I'm a lot interested in studying further an also I would also like to know what are career opporutinites that would be avilable if I study further than Bachelor's level? Thank you!

Nuclear Physics
I'm interested in studying Nuclear Physics at the university and would llike to know about the career opportunities avilable for a Bachelor's degree holder.I tried googling and found several but would like to get advising from a tutor who have experience in the field. ...

Chemistry
What would be the volmeter reading of the cell of Ni and Cu E Ni2+/Ni= -0.24V E Cu/Cu2+= 0.34 V E cell=E cathode - E anode= -0.24 V - (-0.34 V) =0.10V I think this in incorrect as no answer like this is given

Chemistry
Do Ozone gas decomposite naturally under IR rays?

Chem
Do Ozone gas decomposite naturally under IR rays?

Chemistry
Is S^(2-) a conjugate base of a weak acid? Shouldn't HS^(-) be the conjugate base,as H2S is the weak acid?

Math
At a party, the ratio of males to females is 3:4. Which of the following could not be the total number of people at the party? 14 35 44 63 70

Biology
What would happen if the gametes forming a zygote is diploid?

Algebra
Saturday night the movie theater sold 60 student tickets and 20 adult tickets earning $450. Sunday afternoon the movie theater sold 20 student tickets and 32 adult tickets earning $340. How much does a student tickets and an adult ticket cost?

Math
The third term of a geometric progression of positive terms is 18 and the fifth term is 162 Find the common ration and the first term? Write an expression for the Nth term of the progression? Find the sum of the first 8 terms of the progression??

Math
I get the answer of 3%. I hope this is right...

Math
The element strontium-90 is radioactive. The percent of strontium -90, A(t), left in a sample can be modelled by the half-life function A(t) = A0 (1/2)^t/29, where t represents the time, in years, after the initial time, and A0 represents the initial amount, 100% of the ...

Math
No

Math
Four more than the opposite of n equals 6 How u write it as an equation?

Biology
What viruses are common in the Arctic tundra?

science
The iodine-131 nuclide has a half-life of 8.0 days. If you originally have a 257 g sample, after 48 days how much will you have?

Math
The area of a rectangle is 24. The length is 10cm longer than the width. Find the length of the rectangle.

Science
Describe similarities between ice wedging and weathering caused by plant roots?

ELA Please check my work
Which of the following sentences contains a pronoun? A•My sister Sarah loves to cook B• She made dinner for the family last night C• When Sarah offered us seconds I was too full. D•Mom and dad make me do the dishes when Sarah cooks My answer is A Am I correct?

Math
if you fold a square paper vertically, the new rectangle has a perimeter of 39cm. what is the area of the original square? what is the perimeter of the original square? what is the area of the resulting rectangle? make a ratio of area and perimeter. what do you notice?

History
it's C I took the test and I got it right I promise.

business management
A lecturer told his students " The purpose of a management course is to teach students about management, not to teach them to be managers. Do you agree or disagree with this statement? Discuss.

Math
Mr.Edgington travels 25 mph in his boat. To determine how far he travels he uses the equation d=25h, where is d in the total distance in miles and h is the number of hours he travels on his boat. Find the independent and dependent variable and the equation.

Math
If two cylinders are similar, find the scale factor of the smaller figure to the larger figure. The surface area of the smaller area is 20 pi yards squared. The surface area of the larger cylinder is 125 pi yards squared. No radius or height is given, and I need to find the ...

Math
The speed of light is 3x10^8 m/s. If the sun is 1.5 x10^11 meters from the earth, how many seconds does it take light to reach the earth?

math
the circumference of the circle 12.5m. what is the area of the shaded region

math
jennifers pool is 8m deep and has a radius of 5m. the pool is half full....How many ml of water is in the pool.

Spelling
What is the answer to this analogy: Rope is to string as string is to ______?

Science
1. What is the main difference between mechanical and electromagnetic waves? A. Mechanical waves involve transfer of energy, electromagnetic waves do not. B. Mechanical waves require a medium to travel in, electromagnetic waves do not.~~~~ C. Mechanical waves have amplitude ...

Math help! Check my answers ASAP!
Whoa Anonymous, calm down. Don't swear.

Math
Emily walk that a rate of 3 1/2 miles per hour for one and a 1 1/3 hours how far did she walk.

English
What does the word “pentimento” mean, and what is its specific implication in this context? "Now General Eisenhower and I were alone in his studio. What on earth to say—with those five stars in pentimento on his shoulders, me a nineteen-year-old college ...

Chem
Forget this... °.. I accidentally put that & also for #3, it should be mass*change in temp*sp.ht

Chem
Temperature of Bunsen Burner Flame: h t t p s : / / mashchemistry . wikispace s . com /file/ view/Temperature +of+a+ Bunsen+Burner+Flame ... p d f (couldn't put the link so I spaced it out) My data Table: Type of metal used: Cu Mass of metal object: 75.4 g Sp.ht of metal ...

Chem LAB ^^^
DrBob222: Can you check my recent lab post. I'm just confused on what numbers to put where because some things aren't given. Lab due tmrw. Please help! Thankyou so much.

Chem
How do you do this? If 100 grams of boiling water at 100 degrees C is poured into a 100 g beaker of platinum at 0 degrees C, an intermediate temperature will result. Knowing that the specific heat of water is about 32 times larger than the specific heat of platinum, ...

History
What do you mean?

History
Hai! Anyone Please Check This Answer Please! Which of the following is the most likely reason why many Mexicans were opposed to American investment in their country? A. American leaders overthrew the successful government of Porfirio Díaz.* B. Many Mexicans wanted to ...

real estate
i do not know which four are right i have not clue at all

real estate
it is still not helping me

real estate
Let’s see if you can solve this puzzle. Billy and Elizabeth still work for the same brokerage. Billy is in a meeting with a buyer client in one room, while Elizabeth is in a meeting with the seller client in the next room. Elizabeth’s client is selling the property ...

Math help please help!!
The angle ? lies in Quadrant II . sin?=34 What is cos? ? ??7/4 < MY CHOICE ?7/4 3/4 ?3/4

History
Hey! Just Want A Quick Check Over My Answers! 1. How Did The Zimmermann Note Lead The United States Closer To War? A. It Caused The United States To End Diplomatic Relations With Germany. * B. It Resulted In More U-Boat Attacks On American Ships. C. It Increased American ...

math
Is the given value a solution of the inequality? x-5<5,x=15

Math
So that I could get E by its self.

Math
Monica wants to know what she needs to get on the exam to get a certain grade in her English class. The term Mark is worth 70% of the course and exam is worth 30%. The following is the formula used to calculate her overall Mark. Course Mark = term Mark + exam mark C=T/70 +E/...

Language Arts
Thanks! :D

Language Arts
Hi! I just need someone to check my work please! :) Thanks! 1. Which of these is the defining characteristic of a comparison-and-contrast essay? A. Clear thesis statement. B. Organizational structure. C. Reliable sources. D. Similarities and differences between two or more ...

Math
Monday-$88 4 players Tuesday-$154 7 players Wednesday-$132 6 players Thursday-$66 3 players Friday-$ ? 2 players A-on friday,the coach will collect fees from 2 more players.what is the total amount of money the coach will collect from the 2 players? B-use words or symbols to ...

Math
Monday-$88 4 players Tuesday-$154 7 players Wednesday-$132 6 players Thursday-$66 3 players Friday-$ ? 2 players A-on friday,the coach will collect fees from 2 more players.what is the total amount of money the coach will collect from the 2 players? B-use words or symbols to ...

Math
I submitted the assessment. I got a score of 12/19. I am awaiting to get 16 more or less points if I get them. Thanks Steve for checking! Have a nice day! :3

Math
Hi! I just want someone to check my answers please! I cannot provide you with any pictures as I have gotten them off of my schools website. You cannot access these pictures because you have to be logged in. 1. Andrea drew triangle JKL as shown. A. The sum of the two angles ...

Math
Chad buys peanuts in 2-pound bags. He repackages the into bags the hold 5/6 pound of peanuts. How many 2-pound bags of peanuts should chad buy so that he can fill the 5/6-pound bags without having any peanuts left over?

Algebra
You have $6.00 to spend on drinks and burgers. Drinks cost $.50 each and burgers cost $1.00 each. Write an inequality.

Social Studies Ms. Sue plz check
The biggest trading partner of U.S. is China.

science
n a cross between homozygous red-eyed "Drosophila" females and white-eyed males,? A. All the offspring will have white eyes or B. Ditto to A.> red eyes or C The male offspring will have red eyes and female offspring white eyes. I thin the answer is B or A Please ...

algebra
All the members of a construction crew work at the same pace. Four of them working together are able to pour concrete foundations in 32 hours. How many hours would this job take if the number of workers: increased 2 times

Math
Zoey has invested $30 000 in a registered education savings plan (RESP). She wants her investment to grow to at least $50 000, so that her newborn can go to university at age 18. What interest rate, compounded annually, will result in a future value of $50 000? Round to the ...

Math
Factor and find all zeros. One factor is given. f(x)= 6x^3+7x^2-1; 2x+1

Math
Factor and find all zeros. One factor has been given. f(x)= x^3+9x^2+23x+15; x+5

Math
D C B D

Physical Science
If element X has 81 protons, how many electrons does it have?

Science
A rock has an initial volume of 10ml and a final volume of 20ml. The mass of the rock is 30g. What is the density of the rock?

Geometry
If a tangent segment and a secant segment are drawn to a circle from the same point, the external part of the secant segment is longer than the tangent segment. True or False?

MATH
SIMPLIFY:p^2+pq-6q^2/p^2-3pq+2q^2

Science
what were the answers? (please??)

History
Anonymous is 100% correct.

Social studies
Where are all cheater so stfu hoe Ms.Sue

Math
If there are 860 apples 20% is red and 15% is yellow what percent is green

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