# Posts by zachary

Total # Posts: 126

**Chemistry**

Consider the Unbalanced Reaction: Al2O3(s) + CO(g) ? Al(s) + CO2(g) Estimate ?G at 298 K if 7.1 moles of Al2O3(s) is reacted.

**Physics**

Alice is going on a picnic and is aware that it will be easier to carry the picnic basket if it balances at the center where the handle is attached. She has placed a 2.15-kg container of potato salad at one end and a 0.750-kg package of hot dogs at the other end of a 52.0-cm ...

**lego robotics**

WHY DID THEY NOT LET ME IN!!!!!?????

**Math**

Jan and Susan went to the movies.it was 2 hours and 18 minutes long.it ended at 6:00.what time what time did it start

**Math**

1. Find the horizontal change and the vertical change for the translation P(4,-4) (-4,7) A. Right 8; up 11 B. Left 8; down 11 C. Right 8; down 11•• D. Left 8; up 11 2. The point c(x,y) is reflected over the x-axis. Use arrow notations to describe the original point ...

**Math**

The point (3,-1) is translated to the left 4 units and up 1 unit.write a rule to describe the translation.what are the coordinates of the image point? A) (x,y)->(x+4,y+1);(7,-2) B) (x,y)->(x-4,y-1);(-1,0) C) (x,y)->(x+4,y-1);(7,0) D) (x,y)->(x-4,y+1);(-1,0) •...

**Language**

In which sentence is the meaning of the word astonish expressed? A. Marley says that nothing will surprise Scrooge, given all that he has seen.•• B. Christmas present asks Scrooge to touch his robe. C. Fred's wife expressed her pleasure at the amount of laughter ...

**Language**

in which line is the opposite of the word audible best expressed? " Spirit tell me if Tiny Tim will live" " Save your Breath Mr. Scrooge. You can't be...... heard"•• "I'll drink to his health for your sake..... But not for his sake&...

**Language**

In which of those lines is the meaning of the word intercede best expressed? A. The attacker between the goal and goalie. B. In court cases, attorney intercede on their client's behalf.•• C. If you don't agree with someone you should try to Intercede. D. In ...

**Math**

3. Determine which ordered pair is a solution of y = –5x + 10. (1 point) (–15, 5)•• (2, 0) (–1, –5) (3, 25) Correct my answers

**math**

Mimi's market sold 24 heads of lettuce one morning. That afternoon 2/7 of the remaining heads of lettuce were sold. The number of heads left is now 1/2 of the number the market had at the beginning of the day. How many heads of lettuce were there at the beginning of the ...

**Math**

Explain how u can write 35% as a sum of 2 benchmarks percents or as multiple of a percent? PLEASE TELL ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:)

**Math**

$480

**math**

3×50=150

**ENGLISH**

I have not winced nor cried aloud.--sight

**ENGLISH**

give me 5 lines that sensory images please. I can't identify

**ENGLISH**

Please help me to pick out 6 lines from the poem Invictus of William Ernest Henley that used sensory images and identify the sense used for each line.I also need to pick out one line that used onomatopoeia. I only Have one answer Black as the pit from pole to pole--sight

**science**

Is it bad to shave the pubic hair? Why or why not? How does shaving affects the growth of pubic hair?

**english**

I don't have nothing to see

**english**

Black as the pit from pole to pole-sight

**Computer**

Our professor wants us to get more likes on our facebook account. Can anyone tell how?

**Computer**

I tried some of these but they don't work.

**Computer**

Our professor wants us to get more likes on our facebook account. Can anyone tell how?

**ENGLISH**

Thanks a lot Writeacher. This website is really a blessing for us--students and anyone who wants to learn.

**ENGLISH**

1.feel 2.nod 3.look 4.explain 5.offer

**ENGLISH**

1. made them feel 2.noticed the witness nod 3.saw his players 4.let her students 5.heard the officers offer

**ENGLISH**

Here are my answers 1.make them feel the need 2.noticed the witness nod 3.saw his players look 4.let her students explain 5.heard the officers offer

**ENGLISH**

CHOOSE THE BARE INFINITIVE IN EACH SENTENCE. 1.make them feel the need to rise and give you a hand. 2.The judge noticed the witness nod his head with approval. 3.The coach saw his players look at one another with enthusiasm. 4.The teacher let her students explain their ideas. ...

**ENGLISH**

okay thanks. 2.disorganized 6.amazing 11.frozen

**ENGLISH**

Can you give me your final answers writeacher, please? Thanks a lot

**ENGLISH**

1.ringing 2. meeting 3.speeding 4.boiled 5.wrinkled 6.told 7. sliced 8.Clashing 9.winning 10.challenging 11. warmed 12.injured 13.Recycled 14.terrifying 15.used

**ENGLISH**

IDENTIFY THE PARTICIPLE IN EACH SENTENCE. 1.No one answered the ringing phone. 2.The meeting, noisy and disorganized, was a waste of time. 3.The speeding car almost crashed. 4.A boiled egg has fewer calories then a hamburger. 5.She wore a wrinkled blouse. 6.Grandmother told us...

**Social Studies**

how does the work of geographers in government differ from those in the busines world

**Calculus Help and Check**

both answers are wrong correct answer = $170,000

**Chemistry**

How exactly do you get pH from Ka?

**Chemistry**

The following questions refer to the following acids and bases. A) Hydrazoic acid HN3 Ka = 1.9 x 10^-5 B) Hydrofluoric acid HF Ka = 6.8 x 10 ^-4 C) Nitrous Acid HNO2 Ka = 4.5 x 10^-4 D) Phenol C6H5OH Ka = 1.3 x 10^-10 E) Aniline C6H5NH2 Ka = 4.3 x 10^-10 1) which compound is ...

**Strayer**

Which of the following units could be associated with a vector quantity

**Science check answer quick!**

1) Earth's gravity acts on people inside a space station orbiting the earth. 2) It applies to any two objects at any location. 3) the entire earth, located one earth radius away 4) 2.8 days 5) 200 N 6) 1.67 x 10^-9 N 7) 7.70 km/s I just took this quiz. These are the answers.

**Social Studies (History)**

When searching for evidence to support a claim, what are important things to remember? Please explain your response.

**Check my answers please- Physics**

1. A force that makes the net force on an object zero. 2. It is equal in magnitude and opposite in direction. 3. An moving object in equilibrium continues at a constant velocity. 4. 5N 5. 8.5N 6. 24N 7. 90N

**Physics**

1. A force that makes the net force on an object zero. 2. It is equal in magnitude and opposite in direction. 3. An moving object in equilibrium continues at a constant velocity.

**physics**

A certain LCD projector contains a single thin lens. An object 23.5 mm high is to be projected so that its image fills a screen 1.87 m high. The object-to-screen distance is 3.05 m. (a) Determine the focal length of the projection lens. mm (b) How far from the object should ...

**urgent urgent algebra / precalculas**

1. Given a function,H(x)explain how to find the components f(X)AND g(x) such that f(g(x)) = H(x) 2. let H(x)=(2x+5)^4 find the function f and , so that f(g(X))=H(x)

**urgent urgent algebra / precalculas**

For # 1, im getting stuck on this problem i don't understand this 1.4 = e ^ (0.03k) Now take the natural logarithm of both sides to solve for , ln 1.4 = ln e ^ (0.03k) ln 1.4 = 0.03k * ln e Recall that ln e = 1. ln 1.4 = 0.03 k Solve for k. Then try part b. For # 2, y = 3...

**urgent urgent algebra / precalculas**

rewrite each in exponential expression as a logarithmic expression log, x=4 log 5=2 log b=x

**urgent urgent algebra**

rewrite each in exponential expression as a logarithmic expression a)log,x=4 b)log 5=2 c)log ,8=x

**algebra URGENT HELP**

cohol and Driving The concentration of alcohol in a person’s bloodstream is measurable. Suppose that the relative risk R of having an accident while driving a car can be modeled by the equation R = e kx where x is the percent of concentration of alcohol in the bloodstream...

**urgent urgent algebra / precalculas**

lcohol and Driving The concentration of alcohol in a person’s bloodstream is measurable. Suppose that the relative risk R of having an accident while driving a car can be modeled by the equation R = e kx where x is the percent of concentration of alcohol in the ...

**urgent urgent algebra / precalculas**

Alcohol and Driving The concentration of alcohol in a person’s bloodstream is measurable. Suppose that the relative risk R of having an accident while driving a car can be modeled by the equation R = e kx where x is the percent of concentration of alcohol in the ...

**urgent urgent algebra**

find the composite function fog f(X) = 1/X-5,g(x)-6/x question 2 find inverse, domain range and asymatotes of each function f(x)=3+e^4-x can some one help me please been stuck on these for 2 days need help solving thank you

**algebra URGENT HELP**

7x-6 greater than or equal to -3x^2 reduced and written in interval notation

**algebra URGENT HELP**

x+14/x-8 ≥ 1 solve and write solution in interval notation

**algebra URGENT HELP**

analyze the graph of the following function solve R(x)=x(x-16)^2 /(x+11) solve the following inequality write solution in interval notation x+14/x-8 less than or equal to 1

**algebra URGENT HELP**

form a polynomial whose degree and zeros are given. don't expand a) degree 3,zeros,-2,0,4 b)degree 4,zeros, -2 multiplicity 3,1 multiplicity 1 solutions a)p(x)= x(x+2)(x-4) B)p(x) =(x+2)^3(x-1)

**algebra URGENT HELP**

A)p(x)= x(x+2)(x-4) b)p(x)=(x+2)^3(x-1)

**algebra**

p(X)= X(X+2)(X-4) P(X)=(X+2)^3(X-1)

**algebra**

solve A)p(x)= x(x+2)(x-4) b)p(x)=(x+2)^3(x-1)

**college algebra**

given the following polynomial find the zero and multiply of each were the graph touches the x axis number of turning points fx =(x-4)(x^2-25)

**college algebra**

y=x^2+2x+8

**college algebra**

Given the following quadratic equation, find;? a. the vertex b. the axis of symmetry c. the intercepts d. the domain e. the range f. the interval where the function is increasing, and g. the interval where the function is decreasing h. Graph the function. y= -x^2+2x+8

**help college algebra**

given the following piecewise function f(x) = -x+1 for x<0 -1 for 0<x<3 -2x for x>3 find the domain find the range find the intercept d) is f continuous on it domain if not sate where f is dicontinous

**college algebra**

given the function fx=x^3+x a) find the rate of change between the two stated values for x: 1 to 2 B)find the equation of a secant line containing the given points (1,f(1))and (2,f(2)

**algebra**

what are the intercepts of y=2x+2

**math**

solve for x 75=13^x

**Math**

Rearrange this equation to isolate c. a=b((1/c)-(1-d))

**college chem**

Biphenyl, C12H10, is a nonvolatile, non ionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 14.3 g of biphenyl in 25.8 g of benzene?

**urgent urgent urgent**

what is the chemical make up of actin and myocin

**urgent urgent urgent**

A freshman studying medicine at an Ivy League College is a part of his class crew team and exercises regularly. After a particularly strenuous exercise session, he experiences severe cramps in his thighs and pain in his biceps. •Explain the chemical process that occurred ...

**urgent urgent urgent**

A freshman studying medicine at an Ivy League College is a part of his class crew team and exercises regularly. After a particularly strenuous exercise session, he experiences severe cramps in his thighs and pain in his biceps. explain the process the muscle go through

**chemstry**

the hiv virus that causes aids destroys the immune system in the body. classify the hiv virus and explain the statement

**chemistry urgent urgent**

... the hiv virus that causes aids destroys the immune system in the body. classify the hiv virus and explain the statement.

**Math**

Emily wants to make a rectangular model with a height of one connecting cube. She wants to make the model in exactly 2 different ways. How many connecting cubes could Emily use to make the model in only two ways

**chemstry**

Classify six kinds of amino acids according to the functions that they serve in the human body, stating an example for each class.

**chemistry urgent urgent**

thank you

**chemistry urgent urgent**

Discuss, in detail, the role played by DNA and RNA in genetic diseases. What are the breakthroughs, if any, in the treatment/management of genetic diseases?

**chemistry urgent urgent**

the managing director of a company on wall street thrives on a diet of fruit jam,bread,pasta,and coffee.she exercises intermittently.one day she desides to go to her primary healthcare provider for a check up the provider recommends that she takes the benedicts test assume ...

**chemistry**

A freshman is currently enjoying the Arts Studio program she is pursuing at a well-known university. In her free time, she likes to skate, take salsa dance lessons, and cook. She particularly enjoys pickling and decides to pickle olives over a leisurely weekend. According to ...

**chemistry urgent urgent**

do compare the differentes

**chemistry urgent urgent**

Analyze the properties of a sodium atom and a sodium ion. What are the differences in mass, stability, and reactivity that are caused due to the differences between the sodium atom and sodium ion?

**Chemistry: Dr. Bob, can you check my work?**

The first one was correct! I just used the incorrect number of sig figs. Thank you so much!

**Chemistry: Dr. Bob, can you check my work?**

Okay. I'll try both. 825mL - 712= 113. You have to convert mL to L in order to use the PV = nRT correct? if so,113mL=.113L P(.1130) = 1.47 moles CO2 * .0821 * 303 K .1130P=36.57 P = 323.6 atm -OR- 825-85.4 = 739.6 mL = .7396L .7369P=1.47(.0821)(303) .7369P=36.57 P=49.6atm

**Chemistry: Dr. Bob, can you check my work?**

In the "Methode Champenoise," grape juice is fermented in a wine bottle to produce sparkling wine. The reaction is given below. C6H12O6(aq) 2 C2H5OH(aq) + 2 CO2(g) Fermentation of 712 mL grape juice (density = 1.0 g/cm3) is allowed to take place in a bottle with a ...

**Chemistry**

I'm still not sure which volume to use though. would it be 825 mL, 825mL - 85.4 mL, or 712 mL?

**Chemistry**

Sorry, I made a mistake. 85.4 mL = .0854 L. .0854 L * .79 g/cm3 = .0675g. .0675/46(MM of C2H5OH) = .0147 moles ethanol. .0147 moles ethanol = .0147 moles CO2.

**Chemistry**

I found the moles of CO2 and I got 1.47. 85.4 L ethanol * .79 g/cm3 = 67.5g ethanol. 67.5/(12+12+5+16+1)= 1.47 moles ethanol. 1.47 moles C2H5OH *(2 moles C2H5OH/ 2 moles CO2) = 1.47 moles CO2. What do I use for the volume? do I use the volume of the bottle, the volume of the ...

**Chemistry**

In the "Methode Champenoise," grape juice is fermented in a wine bottle to produce sparkling wine. The reaction is given below. C6H12O6(aq) 2 C2H5OH(aq) + 2 CO2(g) Fermentation of 712 mL grape juice (density = 1.0 g/cm3) is allowed to take place in a bottle with a ...

**History**

Can you give me an idea of what to write for a veteran card

**History**

Write a thank you veteran card

**college algebra**

given the following rational, find the horizontal asympotes the vertical asymptotes if any and the oblique asymptotes if any f(x)=x^2-x-2 over 2x^2-x-10

**college algebra**

given the folowing quadratic equations find the vertex the axis of symmetry the intercept the domain the range the interval where the function is increasing andthe interval where the function is decreasing graph the function y=X^2+4x

**college algebra**

given function f(X)=X^3+3x findthe rate of change between the two stated values for x:1 to 2 find the equation of a secant line (1,f(1)and(2,f(2))

**college algebra**

graph the following function using transformations, be sure to graph all of the stages on one grph, state the domain and range y= x^2 +12x

**college algebra**

given the function f(x)= x^3+3x find the rate of chnge between the two values x:1 to 2 find the equation of a secant line containing the given points (1,f(1) and (2,f(2))

**college algebra**

graph the following function using transformations, be sure to graph all of the stages one graph, state the domain and the range y=x^2+12x

**college algebra**

given the functionf(x)=x^3+3x find the rateof change between the two stated values for x:1 to 2 find the equation of a secant line containig the given points (1,f(1))and (2,f(2))

**college algebra**

write the equation of the circle in standard form find the center radius, intercept and graph circle x^2 +y^2+8x+2y+8=0

**college algebra**

for the given equation list the intercepts and test for symmetry y = x^3 -512

**English**

That was a question

**English**

Each element is addressed and two examples from the texts is provided

**Chemistry**

In the second half of the experiment 3mL of hydrochloric acid and 30mL of barium chloride were reacted with a 0.7g sample of alum to get barium sulfate. The question says based on the mass of barium sulfate (0.46g), calculate the mass of sulfate in your sample of alum.