Post a New Question

Chemistry (PLS HELP ASAP)

60,566 results

SS --- one question pls help asap!!!!!
hi, pls help asap!?? one social studies question! The Industrial Revolution led to changes as the U.S. became more economically independent. Which of these changes occurred during this time? A. Cities began to grow, because individuals moved from farms looking for education. B...

MATH 1 QUESTION VERY HARD PLS HELP ASAP!!!!!
PLEASE HELP ASAP!!!!! i don't know! Explain how to write a function rule from the table below. Then write a function rule. x: 2 4 6 y: 1 0 –1 i know its so simple but im having so much trouble!!!:( pls help!

*health* one question pls help asap!!!!!
5. Barrett works with a local gardening club to improve gardens in his community. Which dimension of health drove his decision? A. environmental B. spiritual C. social D. emotional i dunno whether its A or C!!! it would be A if its pointing to the environment (flower) case, ...

PLS HELP ME WITH ONE MATH QUESTION!!???
pllllsssss help me!!!!!!! 5. How many lateral edges are there in a triangular prism? (1 point) 6 3 9 12 I don't know if its 6 or 9 or even 12!!??? pls help asap!!!!!

SCIENCE PLS URGENT 1 QUESTION ASAP!!!!!
8. Chromosome pairs contain different versions of genes, which are called __________________. (1 point) is it base? is it dna? is it alleles? help asap!!!??

LA --- 1 question pls help!!!
hi, one question based on the short story called, "Cyber Chitchat" this one confuses me, pls help if u know the book! 8. The tone of "Cyber Chitchat" is (1 point) serious. humorous. depressing. angry. i think its humorous but im not so sure..... pls help asap!!!!! thanx in ...

science pls help
i posted this earlier but got a confusing answer so pls help as best as u can asap! True or False 1. If a 40 kg person is accelerating at 10 m/s2, then the magnitude of the force acting on him or her is 400 N. (1 point) true false Multiple Choice 2. How much force is needed to...

ss --- one question pls help!
pls help!!! What kept the price of cotton high in the years before 1860? a. cotton gin b. demand in Great Britain c. slavery d. large plantations I origionally thaught it was a. cotton gin, but after research, it looks like it was b. demand in GB my textbook doesnt say ...

Chemistry :'(
(d) Which of the following sets of quantum numbers is not permitted? Select all that apply. 2,1,1,-1/2 1,1,0,-1/2 2,-1,1,-1/2 3,2,1,1/2 Pls pls pls help me :( x

Physics
PHYSICS HELP PLS!!How does the equation of a displacement v. speed graph (cart moving down an incline through a speed gate) relate to the work-energy principle. Pls answer asap! Thanks!

math pls help!!!!!
these are the few i don't know/im not sure. pls help! The distance from Newtown to Oldtown on the highway is (6x^2 + 2x – 2) miles. Using the back roads, the distance is (5x^2 – 8x – 6) miles. How many miles shorter is the second route? A. 11x^2 + 10x - 8 B. -x^2 - 6x + ...

math, pls help ASAP
what is 2/5 of 25

only 1 LA question... help asap!!
In "The Teacher Who Changed My Life," the author is trying to persuade the readers that (1 point) immigrants face many difficulties schoolteachers are not appreciated enough he owes his success to Miss Hurd I think its A (immigrants face many difficulties) but i am not sure ...

math --- pls check my work!
help pls asap!!! Check my work! 1. Find the area for the following figure. (trapazoid: bottom base 16.3, top base 5.9, height 4.6) 51.06 m^2*** 74.98 m^2 27.14 m^2 102.12 m^2 2. Find the area for the following figure. (1 point) (triangle: base 20.3, height 6.2) 125.86 cm^2 62....

science help
How can you describe the location of hafnium (Hf, atomic number 72) on the periodic table? choose all that apply. -Transition metals -noble gases -group 6, period 4 -group 4, period 6 pls help me damon or ms sue pls help me pls pls pls

lit 1 question PLS HELP ASAP
what does meager mean in this sentence??!! After this first inspection of the kingdom, we'd scramble down the bank and flop in the meager shadow of the willows next to the wall enclosing the house where the white gate was. I know meager means lacking quantity and quality but ...

science URGENT so need help
PLS HELP ASAP True or False 1. If a 40 kg person is accelerating at 10 m/s2, then the magnitude of the force acting on him or her is 400 N. (1 point) true false Multiple Choice 2. How much force is needed to make a 60 kg object accelerate at a rate of 2.0 m/s2? (1 point) 62 N ...

Algebra ASAP
pls pls help out A geometric sequence begins 36, 9, 9/4, 9/16, 9/64, . . . . (a) Find the common ratio r for this sequence. r = (b) Find a formula for the nth term an of the sequence. an = (c) Find the tenth term of the sequence. a10 =

algebra--1 question
Find the slope of a line that passes through (-2, -3) and (1, 1) 1/3 1 2 4/3 How do I do this? pls help asap! thanks.

math --- can someone help me pls?
can anyone help me with these 2 questions pls? Calculate the slant height for the given cone. Round to the nearest tenth. (1 point) Diameter = 8 Height = 9 10.2 cm 11.4 cm 9.8 cm 12.0 cm Calculate the length of the diagonal for the given rectangular prism. Round to the nearest...

math 1 question pls help!!!!!
7. A rectangular prism has a width of 92 ft and a volume of 240 ft3. Find the volume of a similar prism with a width of 46 ft. Round to the nearest tenth, if necessary. (1 point) 30 ft3 40 ft3 60 ft3 120 ft3*** this one was tricky pls help asap!!! thanx in advance

11th chemistry
Give reason- Ice floats on water near the melting point. Copper is ductile and malleable but brass is not. Latent heat of fusion of solid co2 is much less than that of silicone dioxide. pls ans asap...have my exams tom.

chemistry pls help me asap
2.08g of metal Y react with 0.96g of oxygen to form a metal oxide.The empirical formula of the metal oxide is Y2O3.What is the relative atomic mass of metal Y.

math help pls pls pls
Given f(x) = 4x + 13 and g(x) = 10x − 2, solve for (f + g)(x) and select the correct answer below. (f + g)(x) = 14x + 15 (f + g)(x) = 14x + 11 (f + g)(x) = 6x + 11 (f + g)(x) = 6x + 15 is it b pls help me

when did child labor start and end in america
pls someone give me an exact year. that's it, i don't need any backstory. it doesnt have to be specific just round it up, like just say 1900's when did child labor start and end in america? pls helps asap!!!!!

math 1 question pls help asap!!!
Find the first four terms of the sequence represented by the expression. 3n + 5 (1 point) 5, 8, 11, 14 8, 11, 14, 17*** 3, 6, 9, 12 0, 8, 11, 14

SCIENCE --- CHECK MY WORK PLS
help pls, check my work asap!?? 1) Which of the following is a chemical change? (1 point) Boiling of water*** Melting a cube of ice Dissolving 10 grams of salt in water Splitting water into hydrogen and oxygen 2) What is the mass of water that results from combining 2.0g of ...

Chemistry
rank the following atoms and ions in the order of expected increasing radius: Ca, Ca2+, Ar Pls pls help me kindly... Anyone?

math help pls pls pls
The graph below plots the values of y for different values of x: Plot the ordered pairs 1, 3 and 2, 4 and 3, 9 and 4, 7 and 5, 2 and 6,18 Which correlation coefficient best matches the data plotted on the graph? 0.5 0.8 0.9 1.0 pls help me

science
pls. pls. pls. somebody help me...you see im on a science class and i don't want to go to the regular section, so pls.... give me an acrostic for the word "SCIENCE"

CHEMISTRY> HELP QUICK! pls
I GOT THIS WRONG IN AN ASSIGNMENT. I HAVE AN EXAM IN 2 DAYS. CAN YOU SHOW ME HOW TO DO IT PLS. What is the pH of a 2.62 x 10 -1 M NaNO2 solution ? NB the pKa for HNO2 = 3.153. 12.13 13.42 1.87 8.29 0.58

geography
hi,i have make a project on hurricane Katrina on disaster management pls help to get information pls pls help me............

Math pls help me pls pls
If the outliers are not included, what is the mean of the data set? 72, 82, 3, 55, 62, 73, 90, 80, 151, 59, 46, 31 59 65 67 73 is it b

math - pls check!!!
29) 4k - 1 >= -3 30) 6(c - 1) < -18 31) 3t > 5t + 12 32) -6/7y - 6 >= 42 33) 4 + x/2 > 2x 34) 3x + 5 <= 2x -8 35) 13.5a + 7.4 <= 85.7 36) 42w > 2(w +7) ANSWERS: 29) k >= -2 30) c < -12 31) t < -6 32) y <= -56 33) x < 8/3 34) x <= -13 ...

physics -PLS HELP ASAP
a bungee jumper is falling at a velocity of 2m/s [down] when the bungee cord just starts to stretch. after the cord stretches for 2.5s, the velocity is 11m [down]. assume that the acceleration is at constant. a) what is the acceleration of the jumper? b) what is the total time...

help pls world history pls pls
Which of the following is not associated with one of the pillars of Islam? charity faithfulness sacrifice self-glorification

world history pls pls help help
Who was the power behind the throne during Justinian's reign? Belisarius Augustus Sophia Theodora is it d pls help

science help pls pls
Which of the following terms refers to the foamy bubbles of a breaking wave? Duration Fetch Speed Surf is it d pls help me

Math
PLS HELP ASAP! 1. Complete the function table. Then write a rule for the function. Input: -3,-2,-1,0,1 Output:_,-4_,_,-1

mental arithmetic pls help( ASAP)
Katie went on holiday on 29 July and returned on 7 August .For how many days was she on holiday?

math help pls pls pls
Choose the polynomial written in standard form. x^3y^2 + 4x^4y + 10x^9 x^4y^2 + 4x^4y^5 + 10x^2 xy^2 + 4x^3y^8 + 10x^2 x^4y^5 + 4x^3y^2 + 10x^2 is it the last one pls help

ss --- pls check my work!!!
hi, can somebody pls check my work asap!?? 1. Who was the African American who called the war with Mexico "disgraceful" and "cruel"? (1 point) Santa Anna Frederick Douglass*** Davy Crockett Sam Houston 2. When Mexico won its independence in 1821, it inherited the New Mexico ...

science help pls pls
The information about groundwater recorded by a student is valid when it is not biased its results cannot be repeated it is not obtained from a primary source its findings do not have to be shared with others is it a pls help me

algebra pls pls help
Factor completely: 2x^3 + 14x^2 + 6x + 42? A. 2[(x^2 + 3)(x + 7)] B. (2x^2 + 6)(x + 7) C. (x^2 + 3)(2x + 14) D. 2(x^3 + 7x^2 + 3x + 21) is it d pls help me

world history pls pls help help
What did special religious observances in both the Aztec and Spanish calendars provide for people? Work and income Education and training Law and justice Fun and entertainment is it d pls help

science help pls pls
Which of the following is typically associated with a large amount of organic material in a water supply? Lower turbidity Higher phosphates Fecal coliform High dissolved oxygen is it c pls help

MATH 1 QUESTION PLS HELP ASAP!!!!!
3. 5 • 3^n (1 point) a.15, 30, 45, 60 b.5, 15, 45, 135 c.0, 15, 45, 135 d.15, 45, 135, 405 is it a. or b.!!!!!????? i think its b, my parents say b

Finance
Omega Instruments has budgeted $300,000 per year to pay for certain ce- ramic parts over the next 5 years. If the company expects the cost of the parts to increase uniformly according to an arith- metic gradient of $1 0,000 per year, what is it expecting the cost to be in year...

SCIENCE 1 QUESTION PLS HELP!!!!!
3. Which of the following describes the relationship between friction and inertia? (1 point) When there is more friction, there is less inertia. When there is less friction, there is more inertia. When there is more friction, there is more inertia. When there is no friction, ...

Science - chemistry
Hi Im in year 7 and to get a level 6 we have to explain the big idea of energy. Our project is about the reation of iron and sulphur to make iron sulphide. We have been told to explain using the big idea of energy. pls help me asap!!!!

ss --- pls check my work!!!
help pls asap!!! Who was the backwoodsman who lost his life at the Alamo? (1 point) Sam Houston Davy Crockett*** John Tyler Stephen F. Austin 2. What policies contributed to tensions between Texas and Mexico? (1 point) The Mexican government limited immigration to Texas and ...

2 LA questions pls help!!!
1. Which words clue the reader about the compare-and-contrast organization in the opening paragraph of "The Next Big Thing"? (1 point) "pros and cons" "for example" "what it led to" 2. Which of the following notes in the section titled "Television" is the most informative in ...

Math
Can u pls pls pls solve this algebraic expression?? I cant solve it although I tried many possible ways and solutions :/ 10+1/3[4k-(18+7k)]

2 LA questions pls help!!!
Question 1 corresponds to "Fireproofing the Forests." Question 3 corresponds to "Birdfoot's Grampa." 1. Which of these is NOT a goal of thinning the forest? (1 point) creating open spaces*** protecting older trees increasing the amount of fuel available managing wildfires. 3. ...

science help pls pls
Which of these surface features are formed when the acid in groundwater reacts with limestone? rivers and springs sinkholes and caves hot springs and geysers wetlands and volcanoes is it b pls help me

chemistry pls help
If 10.0 mL of 1.0M HCl is added to 90 mL water, what is he concentration of the new solution? What is the pH of this solution? If the solution is titrated by 0.500M Ca(OH)2, how much volume (ml) of NaOH necessary? Need help pls.

algebra 1 question pls help!!!
1. Find the mean, median, and mode of the data set: 15, 16, 21, 23, 25, 25, 25, 39 a.mean = 23.6, median = 25, mode = 24 b.mean = 24, median = 23.6, mode = 25 c.mean = 24.6, median = 24, mode = 25 d.mean = 23.6, median = 24, mode = 25 This is what i got: Mean - 23.4 Median - ...

math help pls pls pls
Create an example of a polynomial in standard form. How do you know it is in standard form? pls help me

science
Which of the following is an example of a physical system? hurricanes Volcanoes Glaciers Plant & Animal Communities ***All of the Above*** is it all of the above? Pls help asap!

mental arithmetic pls help( ASAP)
50% of a sum of money was £7.00. Find the whole sum of money.

math - pls check!!!
Write an equation in point-slope form for the line that passes through one of the following pairs of points (you may choose the pair you want to work with). Then, use the same set of points to write the equation in standard form and again in slope-intercept form. (5, 1) and (-...

math help pls pls pls
Choose the correct simplification of the expression the quantity a to the 2nd power over b to the 3rd power all raised to the 4th power. A. a to the 6th power over b to the 7th power B. b^12 C. a^8b^15 D. the quantity a to the 8th power over b to the 12th power pls help me

computing maths
Determine whether the relation R on the set of all real numbers is reflexive, symmetric or transitive? where (x,y) is an element of R Explain why and why not by proving and giving examples. (a) x=1 (b) xy ≥ 0 (c) x-y is a rational number (d)x+y = 0 I need help urgently...

science---1 question
help pls asap! 2) Which of the following is a pure substance? (1point) Chocolate milk Orange juice Seawater Hydrogen peroxide (H2O2) i first thought it was C (seawater) but is it D (H2O2)!??

afrikaans (AFK503/101)
Hi there, can anyone pls help me with AFK1503/101 - 2015. I am seeking an English version of this assignment pls, is there an English one available? if there is pls provide me with a website address to get access. Thank you. Tanya

Physics
A child pulls a wagon along level ground. The handle with which she pulls the wagon makes an angle of 20.0 degrees with the ground as the child pulls with a force of 78.0 Newton. What are the components of the force. Pls pls pls pls help me answer this and may God bless u!

math help pls pls pls
Consider the functions f(x) = 2x + 1 and g(x) = x^2 − 10. What is the value of f[g(3)]? 39 −3 −7 −1 pls help me

math
Find the 265th term of an arithmetic sequence whose second term is 5/8 and whose 9th term is 71/24 pls help asap

math help pls pls pls
Four polynomials are shown below: A. 2 − 2x5 + 2x2 B. 5x3 + 5 − 5x4 C. 3x + 2x5 D. 6x3 − 1 Which of the above polynomials is a 5th degree binomial? Polynomial A Polynomial B Polynomial C Polynomial D pls help me

Chemistry (PLS HELP ASAP)
What is the molecular weight of a gas if a 15.0g sample has a pressure of 836 mm Hg at 25.0 degrees C in a 2.00 L flask? a)167 b)1.35 c)176 d)11.1 e)none of the above Please explain... I need to understand how to do this. Thanks. I know that I have to use PV=nRT, then solve ...

science 1 question
When evolution was first proposed, which of the following was used as evidence to support the idea? A)observations of nature B)laboratory experiments C)extensive fossil collections D)genetic sequences Is it A or C??? I'm very torn between the two. pls help asap! i might post ...

chemistry
pls help i need the answer not jus part of it, pls im really stuck out here. A buffer was prepared by dissolving 0.100 mol of the weak acid HA (Ka = 1.00 × 10−5) plus 0.050 mol of its conjugate base Na+A− in 1.00 L. Find the pH.

algebra pls pls help
Determine which polynomial is a perfect square trinomial. 49x2 − 28x + 16 9a2 − 30a + 25 25b2 − 45b − 81 16x2 − 24x − 9 is it b pls help me

Social studies
I have this poem I have to write it's about Walter prynne and the freedom of speech has to be ten lines and has to be rhyme scheme poem. I don't know how to do this. And my teacher said it's due and I don't get it and if I don't get it in I fail. Pls reply asap. Thx

SOCIAL STUDIES
10. Why did sectional differences grow in the 1820s? (1 point) because of the Adams-Onis Treaty because of differing views of foreign policy because of the decline of the Federalist Party ***because of regional differences, especially those concerning the issue of slavery*** i...

math---help! connections academy! check my answers
pls help asap! check my answers: In the diagram, lines m and n are parallel. If m¡Ð2 = 150¡Æ, find the measure of the following angles. 1. ¡Ð4 = ? (1 point) 120¨¬ 50¨¬ 30¨¬ 150¨¬ 2. ¡Ð6 = (1 point) 150¨¬ 130¨¬ 15¨¬ 30¨¬ 3. ¡Ð8 = (1 point) 30¨¬ 132...

Polyhedren Question, pls help asap!!!!!
ok, i really don't know this one and i cant post the pic of the triangle, so im gonna go to extremes here if u want to find the pic. I think it is a triangular prism though... 1. What is the shape of the bases for the following polyhedron? (triangle prism, if you research this...

math --- 2 questions!
help pls!!! i am confused!! can you check to see if these are right!?? 4. List all of the quadrilaterals with exactly one pair of parallel sides. (1 point) parallelogram; trapezoid rhombus; parallelogram; rectangle trapezoid rhombus; square; rectangle 5. List all of the ...

Chemistry-pls help
I refer to the following question. Is my explanation correct, that step two C6H14(g)--> 6CO2(g) + 7H2O(g) can be considered combustion reaction? Thank you! Posted by jan on Tuesday, March 31, 2009 at 10:28pm. C6H14(l)->C6H14(g) ->6CO2(g) + 7H2O(g) ->6CO2(g) + 7H2O(...

social study
Hi everyon I need help with my home work pls help me. I have to write aboot surfing competition. Like I am a reporter and I have to write artical about that. where and when, who won and how, what happend to looser and what kind of outfit surffer wear ( discribe). Please help ...

science help pls pls
A scientific law can be best described as an explanation of a specific relationship a series of observations with contradictory data a phenomenon which works under changing conditions a description of specific relationships under given conditions is it a pls help me

science --- pls check my work!!!
hi, pls check my work asap! 1. A ___ has a definite shape and a definite volume. (1 point) solid*** liquid gas molecule 2. Why is a gas able to flow? (1 point) Its particles have melted and can move around.Its particles have high viscosity and can move around. Its particles ...

math: ineuality help pls!??
is this an inequality in a real life scenario? and what is the difference between that and an equation? Robin has $25. He wants to buy some more boomerangs so he can practice his aiming for knife chucking for a circus act. Robin needs to know the average price so he doesn't ...

science help pls pls
Which of these statements best explains why scientists use models? to allow other scientists evaluate their data to speed up or slow down natural processes to describe and explain non-observable objects and processes to predict the scientific theories which would be proposed ...

ratio pls help asap
divide £180 into 3 parts in the ratio of 3:2:4 divide 108 children into 3 groups in the ratio of 5:3:4 thank you for reading my questions

science help pls pls
One group of scientists has proposed a new theory on Adaptation. A majority of scientists worldwide agree with the theory. The theory is most likely biased. incomplete. accurate. unchangeable. is it accurate pls help me

Chemistry-pls help urgent
Posted by candy on Tuesday, October 12, 2010 at 5:04pm. 1) How do I prepare 2M nitric acid from 65% concentrated nitric acid? 2) How do I prepare 17% ammonia from 25% concentrated ammonia? Please show calculation steps. Thanks. Chemistry -pls help urgent - DrBob222, Tuesday, ...

PLS HELP ASAP 1 SUPER HARD & ANNOYING QUESTION
Use the diagram to answer question 13. so substance A looks like a row of three little circles on the top and bottom all organized (total six dots). substance b is all clumped together circles and is disorganized. 13. How can substance A and B be compared? Choose all that ...

MANIPULATION OF DNA
can anyone describe to me what this is pls? also can anyone pls explain how dna manipulation works and what it does pls?

physics.pls help
How do you know what element is chemically active on the periodic table? PLS HELP

math help
1/4 divided by 3/8 pls help me im confuss i forgot the ste pls explain

pre algebra
2x^2 + 8 - 4x + 3x - 6x^2 + 7 what does this simplify to A)-8x^2 - 7x + 15 B)-4x^2 - x + 15 C)4x^2 + x + 15 D)8x^2 + 7x + 15 pls help me reiny steve or damon pls help me

math pls help me
(-2y + 5 )(y + 3) what would this simplify to? A)-2y^2 + 8y + 15 B)-2y^2 - y + 15 C)2y^2 + 8y + 8 D)2y^2 - y + 8 pls help me steve or damon or ms sue

math
Pls i want you to teach me the 5 90 lotto formular pls i need it now

food science
pls give me an idea on the formulation of bavarian cream filling. pls. thank you

Science(Help NOW, Pls)
wat elements make up water? pls help! i will be very happy if you do! :S

physics.pls help
Why is it important to asaume that a rope under tension is taut and does not stretch. pls help

Please answer my Misc. Question Asap!!!!!!!!
asap!!!!!!!!!! How rude. We are volunteers, and adults.

SS ASAP
Compare and Contrast the Independence Struggles of american, african, and asia. ASAP

science help pls pls
Which of these is the most practical method to prevent global water shortage? Stop planting trees and shrubs in gardens. Conserve, recycle and reuse water in households. Stop using appliances like washing machines and dishwashers. Discourage setting up of power plants which ...

  1. Pages:
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  7. 6
  8. 7
  9. 8
  10. 9
  11. 10
  12. 11
  13. 12
  14. 13
  15. 14
  16. 15
  17. Next>>

Post a New Question