
Chemistry Please Help Thanks!
Calculate the volume of solution that has a vapour pressure of 25.8 mbar and contains 200.3 g of galactose, C6H12O6, at a temperature of 22.0 °C. The vapour pressure of pure water at 22 °C is 26.40 mbar, the density of water is 1.00 g mL1, and assume no

Physics
A black mamba snake has a length of 4.3 m and a top speed of 8.9 m/s! Suppose a mongoose and a black mamba find themselves nose to nose. In an effort to escape, the snake accelerates at 20 m/s2 from rest. (a) How much time does it take for the snake to

PHYSICS
A diver leaves a 3m board on a trajectory that takes her 2.7m above the board and then into the water 2.9m horizontally from the end of the board.At what speed did she leave the board?At what angle did she leave the board?

physics
While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 6.93 m/s. The stone subsequently falls to the ground, which is 17.1 m below the point where the stone leaves your hand. At what speed does the stone

Chemistry
Equilibrium is established between Br2(l) and Br2(g) at 25.0*C. A 250.0 mL sample of the vapor weights 0.486g. What is the vapor pressure of bromine at 25.0*C, in mmHg?

physics
For a flourish at the end of her act, a juggler tosses a single ball high in the air. She catches the ball 3.6 s later at the same height from which it was thrown. Part AWhat was the initial upward speed of the ball?2sf

pre  CALCULUS
A gas company has the following rate schedule for natural gas usage in singlefamily residences: Monthly service charge Per therm service charge 1st 25 therms Over 25 therms $8.80 $0.6686/therm $0.85870/therm What is the charge for using 25 therms in one

ART Check
Brooch of Henry Clay This brooch contains a miniature picture of american statesmen henry clay. likely owned by clay or his ancestors this brooch is valued for what reason a)scholastic value b)provenance c)cultural heritage d)market value A museum is

Algebra
You and a friend are starting a computer repair business. You estimate that you are expressed are $500 per week. select a reasonable average number of dollars you would expect to spend (expense) on replacement parts for each computer you repair. Then

math
In arithmetic sequence tn find: t5 , if t7=−20 and S8 = −100 t5 =

Maths
In an examination,60 candidates passed science or maths.if 15 passed both subjects and 9 more passed maths than science, find the number of people who passed maths and science, probability that a candidate passed exactly one subject.

Math
Three numbers X, Y, and Z are in the ratio 2:7:8. If 12 is subtracted from Y, then three numbers form a geometric sequence (in the order X, Y–12, Z). Find X, Y, and Z. There are two sets of answers I already found one set i am unsure how to find the

math
Andrea drew triangle JKL as shown if angle JKL is 110, which statement is true for KLJ and LJK

English
A letter to my uncle telling Him about my school fees

Chemistry
An industrial raw materials as the following composition by mass : iron = 28.1% chlorine = 35.7% and water of crystalization = 36.2%. Calculate the formula for the material given that Hydrogen is 1, oxygen is 16, chlorine is 35.5 and iron is 56.

Social studies help PLEASE
Which of the following factors helped trade to thrive during the Roman empire? Select all that apply. A. peace throughout the empire B. a shared religion throughout the empire

English
Choose the mood of the underlined verb. 1. (Look) out of the window and tell me what you see. (1 point) indicative imperative*** subjunctive 2. Yosemite National Park (is) a national treasure. (1 point) indicative*** imperative subjunctive 3. If I (were)

physics
A 4kg mass moves in a circular path of 7m radius on a frictionless horizontal table. It is attached to a string that passes through a frictionless hole in the center of the table. A second 87kg mass is attached to the other end of the string. Acceleration

Social Studies
What was the purpose of washington’s neutrality proclamation?

Chemistry
A 1.75 gram perfect cube of wood has a side measure of 2.45 cm, what is the density of the wood?

Physics
At which point or points is the electric field zero in figure? I can not post the picture, but this is what it looks like: 1 2 3 4(4+)5 6()7 8 9 10 The (4+) is a proton with 4 charges. The () is an electron with 1 charge. They are on a number line 110.

math
During last year the number of students in RSM increased by 100%. This year, the number of students increased by 150%. What percent of the number of students now was the number of students two years ago?

Art
What characteristic should be considered the most when responding to a cubist painting ? A. Use of geometric shapes to create an image B. Use of shading and detail in an image C. Use of realistic portrayal of the subject D. Use of appropriate proportions

math calculus
Find the halflife (in hours) of a radioactive substance that is reduced by 30 percent in 40 hours.

ART HAVING HARD TIME
1. A curator decides to display an eighteenthcentury painting in a windowless room with controlled temperature and humidity. Pick the answer that best describes the reasons for her choice: (1 point) 1)The curator wants to make sure that the temperature

language arts
Johnny Tremain Which of the following is a theme the author explores in Johnny Tremain? select all that apply. Friends and Family The costs of war Fear of failure coming of age they all seem to apply but i assume i can only pick two. which ones? help asap?

Art Help!
Sketch of a woman by Kiana S. How does this artwork represent a student's skill and style? A. The use of proportion and shading*** B. The use of color and perspective C. The use of texture and color D. The use of texture and movement There is no color in

Health
1. The muscular system is essential because it allows our bones to strengthen contract lengthen move 2. which muscle is attached to a bone by tendons? smooth muscle cardiac muscle skeletal muscle involuntary muscle 3. To prevent injury, each time you

Math cca
1. Name a pair of vertical angles. angle sign2 and angle sign5 angle sign2 and angle sign6 angle sign3 and angle sign4 angle sign5 and angle sign6 2. If mangle sign1 = 43°, what is mangle sign4? 53° 43° 37° 27° 3. If mangle sign1 = 55°, what is

physics
A sprinter can accelerate with constant acceleration for 2.10s before reaching top speed. He can run the 100meter dash in 10 s. What is his speed as he crosses the finish line?

physics
A car is being pulled out of the mud by two forces that are applied by the two ropes shown in the drawing. The dashed line in the drawing bisects the 30.0° angle. The magnitude of the force applied by each rope is 2900 newtons (N). (a) How much force

math
fill the sequence 8, 23, 44,74, 116 next two terms of sequence

English 11A Please Help.
In three to five sentences, explain how Ambrose Bierce's use of foreshadowing or flashback influence "An Occurrence at Owl Creek Bridge."

General Chemistry
A solution of LiCl in water has XLiCl = 0.0800. What is the molality?

Chemistry
Express the concentration of a 0.0510 M aqueous solution of fluoride, F, in mass percentage and in parts per million. Assume the desnity of the solution is 1.00 g/mL Since, we're assuming the density I think that also means were assuming the volume.. but

Math
Suppose that 8 turns of a wire are wrapped around a pipe with a length of 60 inches and a circumference of 4 inches. What is the length of the wire

math
If a car is speeding down a road at 40 (mph), how long is the stopping distance compared to the stopping distance if the driver were going at the posted speed limit of 25 ? Express your answer as a multiple of the stopping distance at 25

Calculus
What is the linearization of f(x)=e^x at x=1?

Logarithm
Evaluate the anti log of 15.47×0.0852÷(254)^3

Geometry
Two sides of a triangle are 11 cm and 16 cm. What is the range of possible lengths for the third side?

English
Which of the following is a theme in a literary text?(1 point) the most important plot events** the most important character a lesson about life Which of the following is the main idea of a story?(1 point) the point of view of the narrator the key details

US History
1. Which of the following was a result of the election of 1912?  The Progressive Party was formed 2. Alfred Thayer Mahan 3. For annexing new territory vs. against annexing territory 4.  A, D 5. Alliances 6. B,C 7. business owners and corporations 8.

history
1.Identify one social factor that influenced American imperialism. A. white man’s burden B. spread of religion C. trade opportunities D. spread of democracy 2.Which event proved that the U.S. purchase of Alaska had been a good investment? A. Alaska

Statistics
roll 2 standard dice and add the numbers. what is the probability of getting a number larger than 8 for the first time on the third roll?

math
The lateral surface of cone A is unwrapped into a sector of central angle 6 radians and radius π. What is the radius of cone A?

Chemistry
In Part C, you determined that the proper ratio of packages of buns, packages of patties, and jars of pickles is 3:2:4. If you want to feed at least 540 people, but also maintain the proper ratio, what minimum number of packages of buns, packages of

math
1. 7 1/2 divided by 3 3/4 2. 9 divided by 2 1/4 3. Sean runs 3 1/2 miles in 28 minutes. How long does it take him to run 1 mile? 4. 8 1/4 pounds of flour are used to make 4 1/8 papiermache paste recipes. How much flour is used to make 1 recipe? 5. An

Math
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. The price of a video game was reduced from $70.00 to $40.00. By what percentage was the price of the video game reduced? Justify your answer.

physics
A capacitor of capacitance 3.0microfarad is subjected to a 2000v potential difference across its terminal.calculate the energy stones in the capacitor.

Math
1/4 divided by 3/8 (write in simplest form)  1/3 divided by 5/6 (simplest form)  1 3/4 divided by 3 (simplest form)  1 3/5 divided by 5/8

civic education
10 reason why leaders fail to protect the interest of their follows

Internet Safety
Which of the following is an example of safe behavior online? A. chatting with someone you have not met before B. providing your email address when asked in an IM C.Leaving your computer open at a public library D. communicating with friends on secure

Maths
An aeroplane flies from a town x on a bearing of N45°E o another town y,a distance of 200km.it then changes course and flies to another town zon a bearing of s60°e.if z is directly east of x,calculate to correct 3significant figures, A.the distance of x

trig
The sun of galaxy X has a diameter of about 25,000 mi with a maximum distance from Planet X's surface of about 47,700,000 mi. Planet X's moon has a diameter of 6,603 mi. For a total solar eclipse to occur, the moon must pass between the sun and

Math
3. Solve the equation using substitution. x + y = 8 y = 3x

Language arts
Oki so.. Read the following lines of dialogue spoken by Grandma Sands in chapter 12 of The Watsons Go To Birmingham 1963. 'Lona things are different from what they were when you left, Nearly everything Changes, your dads ben gone for almost 20 years...Now

ss
What belief did Zoroaster teach? A. He taught that the universe is dominated by good, not evil. B. He taught that the universe is governed by natural laws, not gods and goddesses. C. He taught that the universe is locked in an eternal struggle between good

calculus
If an arrow is shot upward on Mars with a speed of 52 m/s, its height in meters t seconds later is given by y = 52t − 1.86t2. (Round your answers to two decimal places.) What is the average speed over the given time intervals? (i) [1, 2] (ii) [1, 1.5]

Chemistry
(A) calculate the density of NO2 gas at 0.970atm and 35 Celsius. (B) calculate the molar mass of a gas if 2.50g occupies 0.875L at 685torr and 35 Celsius. Answers are 1.77g/L 80.1g/mol

L.A 8TH
For each pair of shapes, decide whether they are congruent, similar, or neither. Choose the best answer. Congruent Similar Neither Two sidesideside triangles are shown. Each side of one triangle is equivalent to the corresponding side of the other

math
use the points in the diagram to name the figure.

Math
Which property is illustrated by the statement. (2+3.4) + 6 = 2 + (3.4 + 6) Associative property of addition (i chose this) Commutative property of multipliction Inverse property of multiplication Commutative property of addition I know its not commutative

civic education
reasons why leaders fail to protect the intrest of their followers

Social Studies
What was Alexander Hamilton’s main reason for insisting that all the nation’s debts must be paid in full?

Chemistry  Significant Figures
Suppose it takes 35 min for 2.4 g of sugar to completely react with another reagent we added to the flask. What would the reaction rate be? Calculate to the correct number of significant figures.

math
a man has a simple discount note for $6,400 at an ordinary bank discount rate of 8.53% for 40 days what is the effective interest rate

Ed Tech
What does the code of conduct include? A. A secret code for internet users B. The conduct that should be used with a code C. A set of rules for behavior when using the internet D. A rule that tells you the code I think C Thanks!

Chemistry
How much heat (in kilojoules) is required to warm 11.0 g of ice, initially at 14.0 ∘C, to steam at 112 ∘C? The heat capacity of ice is 2.09 Jg−1∘C−1 and that of steam is 2.01 Jg−1∘C−1.

math
Three numbers form a geometric progression. If the second term is increased by 2, then the progression will become arithmetic and if, after this, the last term is increased by 9, then the progression will again become geometric. Find these three numbers.

american goverment check answers
1. Read this famous quotation from Justice Oliver Wendell Holmes. Which is the best interpretation of Holmes's meaning? The most stringent [strict] protection of free speech would not protect a man falsely shouting fire in a theatre and causing a panic.

Language Arts
I am having a trouble with a few questions. 4. Which of the following sentences from “Poor Fish” does not support the story’s theme of selfloathing and inferiority? A. “But I looked upon myself as being as fragile as glass, as the thinnest glass,

ela
1. The portion of a story in which the characters are introduced and the setting is described is called the (1 point) climax. exposition. rising action. falling action. 2. Imagine you are going to add the following events to a plot diagram for The Watsons

Science
Which of the following could be true of two different species that have a competitive relationship in the same ecosystem? A: one species preys on the other B:they share the same niche C:one species benefits while the other is neither helped or harmed

Math
Which of the following is equivalent to the expression 6m + 3? A)2(3m + 3) B)3(2m + 1) C)3(2m + 3) D)6(m + 3) The answer I got was B) 3(2m + 1). How I got this answer was 3 x 2 + 3 x 1 = 6m + 3.

social studies
1. The Kansas Nebraska act continued ideas of which of the following 1. Missouri compromise 2. compromise of 1850 3. free soil party 4. Dred Scott v Sanford

Chemistry
Determine the volume of a 67.5g piece of aluminum with density of 2.70 g/mL? I know V=M/p and this is what I came up with but I'm not sure i'm correct.. p = 2.7 g/cm3 M = 67.5 g V = 25 cm3 3√ V = 2.9240177382129 cm

Social Studies
Which of the following were precedents that George Washington set during his presidency? A. he established a judicial system of 9 justices that is still in place today. B. he chose wellknown leaders to run his executive departments and serve his advisors.

SS
How is the number of Electoral College seats per state determined? (1 point) by the number of party delegates assigned to the state by the total number of House and Senate representatives by the traditional number assigned under the 12th Amendment by

Physics
A golfball with an initial speed of 50 m/s lands exactly 240 m downrange on a level course. a) Neglecting air friction, what two projection angles would achieve this result? b) What is the maximum altitude reached by the ball, using each of the two angles

math
The ratio of the number of Victor’s tools to the number of Ilya’s tools is 5:2. Victor has 42 more tools than Ilya. How many tools should Victor give to Ilya so that the ratio of the number of Victor’s tools to the number of Ilya’s tools is 3:4?

Math
A bowl has red,green and blue marbles.There are 95 red marbles.the nuber of blue marbles is 5 timesthe number of green mables altogether red and green marbles are 189 less then blue marbles .how may marbles are there in total

math
You wish to have $12,500 in 12 years. Find how much you should invest now at 12% interest, compounded quarterly in order to have $12,500, 12 years from now.

Math
The sum of ages of two sisters are 19 years.in five years time the product of their ages will be 208.what are their ages?

Technology
1. Which of the following is an example of music piracy? A. borrowing your friend's CD B. borrowing a CD from the library C. downloading a song for $1.00 from a reputable website D. copying a CD from your friend and giving it to another friend** 2. Which

math
By what percent will a fraction change if its numerator is decreased by 10% and its denominator is decreased by 50%?

English 11
Consider what you have learned about American history during the period of 1862 the early 1900's. How do the stories in unit 4 reflect what is going on in the country then?

Language
The fox proved he was wilier than ever when he broke through the new fence into the chicken coop. (1 point) a.quicker b.smaller c.slier d.tougher••

Math
1. Name a pair of complementary angles. (1 point) 1 and 4 1 and 6 3 and 4 4 and 5 2. If m1=37°, what is m4? (1 point) 53° 43° 37° 27° 3. If m1 = 40°, what is m5? (1 point) 50° 40° 35° 25° Use the figure to answer questions 4–5. Assume that

Tourism,business studies,maths literacy
What kind of job can i get for choosing maths literacy tourism,cat,business studies

phyics
Suppose a runner completes one lap around a 400m track in a time of 50 s. Calculate the average velocity of the runner. Express your answer in meters per second to the nearest integer.

calculus
a colony of bacteria living on a petri dish under optimal conditions doubles in size every ten minutes. At noon on a certain day, the Petri dish completely covered with bacteria. At what times (to the nearest hour, minute and second) was the percentage of

Math
Farmer Brown planted corn and wheat on his 1200 acres of land. The cost of planting and harvesting corn is $275.00 per acre. The cost of planting and harvesting wheat is $125.00 per acre. If Farmer Brown's total cost was $244,500, how many acres of corn

physics
If I weigh 741 N on Earth at a place where g = 9.80 m/s2 and 5320 N on the surface of another planet, what is the acceleration due to gravity (in m/s2) on that planet?

Trigonometry
a bicycle with 24inch diameter wheels is traveling at 15mi/hr. a) Find the angular speed of the wheels in rad/min. b)How many revolutions per minute do the wheels make?

Math
Four of the angles of a pentagon measure 85 degrees, 110 degrees, 135 degrees, and 95 degrees. Find the measure of the missing angle. A. 115 degrees B. 95 degrees C. 135 degrees D. 85 degrees Is the answer D?

Health
The number of calories consumed must equal the number of calories________. a.)needed b.)burned c.)absorbed d.)wanted 2.)It is important to recognize which of the following when watching your weight so that you know what triggers your eating habits. a.)

Science HELP!
The body's reaction to information is to send these to the brain. A. Neurons B. Impulses C. Dendrites D. Synapse Is the answer B? Thanks

Math
On an EKG strip a nurse determines that a patient's heart is beating 5 times every 4.5 seconds. Calculate the time for each heart beat. I don't really understand what the question is asking for? Is it looking for how often the beats will occur (4.5/5)= 0.9

science PLEASE CHECK MY ANSWERS
1. where does the conversation current in the mantle obtain its heat energy? a. earths core and crust b. earths mantle c. earths core and mantle*** d. earths mantle 2. How do convection currents cause movement of earth's plates? a. The weathering of rocks

math
1. Which angles are adjacent angles? (1 point) ∠GBM and ∠FBC ∠CBX and ∠FBC ∠XBG and ∠FBC ∠MBY and ∠FBC 2. The measure of ∠3 is 101°. Find the measure of ∠1. (1 point) 101° 106° 74° 79° 3. Is line l parallel to line m? Explain.