brian

This page lists questions and answers that were posted by visitors named brian.

Questions

The following questions were asked by visitors named brian.

how many grams of H2 (g) are produced by the reaction of 1.35 g Al with 75.0 mL of 3.44 M HCl Here is the way to do most of these stoichiometry/limiting reagent type problems. Step 1. Write a balanced chemical equation. 2Al + 6HCl ==? 3H2 + 2AlCl3 Step 2....

Consider the following balanced equation: 2 Na + 2 H2O ? 2 NaOH + H2 If 92.0 g of sodium reacts with 76.0 g of water until completion, which reactant will remain, and in what quantity?

need to find: lim as x -> 0 of 4(e^2x - 1) / (e^x -1) Try splitting the limit for the numerator and denominator lim lim x->0 4(e^2x-1) (4)x->0 (e^2x-1) ______________ = ________________ lim lim x->0 e^X-1 x->0 e^x-1 Next solve for lim x->0 and simplify

find the HAs of y = (x-9) / sqr(4x^2 + 3x+ 2) What happens to y as x goes to +/- infinity? Specifically, is y approaching some limit from above or below? ?? I see your question was to just find the horizontal asymptotes and not to evaluate the function's...

what if anything,is wrong with the following sentences? Carmen is tall, slender,and a woman of great beauty. Nothing is wrong with it that I can see. It is one sentence, so you should have ended the previous question with "sentence", not the plural. Write...

3 to 4 questions that would lead to the country jamaica We are not going to do your homework for you. Find about Jamaica, and make the questions up You could ask -- The capital of this country is _________ Its location is ____latitude and _____ longitude....

how is grass better than people grass is better than people because we need the grass to survive. The grass gives off oxygen allowing us to breathe.

how do you magnetize something made of iron cobalt and nickel

The Quotient of 6 times a number and 16 ? "Quotient" is what we call the result of a division, the result of multiplication is called a product. You used the word "times" which shows multiplication. BTW, I refuse to tell you what 6 times 16 is.

why is a bell the most obiedient thing in the world? why is a bell the most obiedient thing in the world? I doubt if that is true. Anyway, what does your question have to do with math?

using uniform acceleration, how can I find the displacement of an object?

in some ways, a cell is analogous to a factory. create an analogy describing the job of a lysosome within a cellular "factory"

what is the square root of -18 - the square root of -8

Hi, I have to answer this question "why do we say that metabolism is the factor that most accounts for differences among species in the toxicity of some xenobiotics? I don't understand what the question means- I understand all the words in the question, b...

how would i go about finding the domain of the function f(x)=(3x+1)/(sqrt(x^2+x-2)) and both the domain and range of g(x)=(5x-3)/(2x+1)

when might you think you're built upside down?

1000 significance tests are performed using alpha = .05. Assumimg that all null hypotheses are true, about how many of the test results would you expect to be statistically significant?

is NH3 a base or an acid how do u tell?

(x^5y^8)/(x^3y^4)

What is the activation energy for a reaction whose rate is tripled by a temperature increase from 27.5°C to 55.5°C?

What element is in the second period in Group 4A?

can someone explain to me baker v carr in little kid words? i don't understand what actually happened

A college professor decides to run for Congress in a district with 450,000 registered voters. In a survey she commissioned, 58% of the 4000 registered voters interviewed indicated that they plan to vote for her. The population of interest is the: A. 450,0...

for the compound: carbon in the middle with 3 bonds -double bond to oxygen -bond to Mn(CO)5 -bond to CH3 group is the oxidation state of the metal +1? d count 6? total electron count 20? coordination number 7?

what did the khmer rouge do for four years in cambodia starting in 1975

in a class every boy is friends with exactly three girls,

what is a good speech of secretary and vice presidents: this is what secretary it does attend council meetings take pictures at school functions distribute and collect surveys at school funtions and from classrooms participate in council activities vice p...

what territory did the french claim, prior to the french and indian war

Lead Contamination More than a decade ago high levels of lead in the blood put 88% of children at risk. A concerted effort was made to remove lead from the environment. In a random sample of 200 children taken more than a decade ago, what is the probabili...

When a river is lengthened due to forward erosion, a _____ has occurred.

Does a gallon hold more or less than 5 quarts?

what are the real solutions of 750=x^3-15x^2+50x

what are the three main types of resourses used for making,selling,and using goods and services?

what is the eighth term of the sequence of the expression:5(n+2)?

state the effects of unemployment on the (A)consumers expenditure (b)investment (c)Government expenditure (D)The church.

americans are united by their strong belief in basic principles.they believe that people are born with privileges that cannot be taken away from them.these are

wats 4 divided by 137

xy = 8 y = x + 2

Identify at least five indicators of project failure that manifest themselves in this case study. Are these right ? these are a few i have came up with: organized inertia lack of clarity of pupose lack of landor project status report insufficient leadersh...

Case Study â€“ Memorial Health System CPOE Implementation Identify at least five indicators of project failure that manifest themselves in this case study. 2. For each of those indicators, describe what you might have done differently to eliminate or mini...

at what velocity would a snowball melt before it hit the wall at 32 degrees?

i need help on doing 442 mi in 8.5 hr and i don't know how to do it can you help me?

Calcu- late the mass of pure acetic acid in 440 mL of this solution at 20 C. Answer in units of g.

the difference between 2 numbers is 24. find the numbers if their sum is 88

Calculate the molarity for 25mL of H2C2O4 in a titration with 12.46mL of KMnO4

A titration. 12.46 mL of KMnO4 are titrated with 25 mL of H2C2O4. The half reaction is 2H2O+H2C2O4 ARROW 2H2CO3+2H+2e-. How do I get the molarity of H2C2O4? PLEASE HELP

what is the galvanic cell for the redox reaction between sodium dichromate and mercury(I) nitrate in an acidic solution.

i am having trouble writing the half reactions and the balanced equation for the galvanic cell Ag(s) |AgI(s) | I−(aq) || Cl−(aq) |AgCl(s) |Ag(s)

would the half reactions for Ag(s) |AgCl(s) |Cl−(aq) || Cl−(aq) |Hg2Cl2(s) |Hg(§¤)be Ag+Cl+e==> AgCl 2Cl+3Hg==>Hg2Cl2+Hg+e

A solution is prepared in which a trace or small amount of Fe+2 is added to a much larger amount of solution in which the [OH]- is 1.0M*10^-2. some Fe(OH)2 precipitates. the value of Ksp for the salt is 8.0*10^-10. assuming that the hydroxide ion concentr...

Find the emf for the cell Cr(s) |Cr3+(aq, 0.37 M) || Pb2+(aq, 0.0095 M) | Pb(s). Answer in units of V I got .548733V Is this right?

Complete and balance the reaction Al(s) + Pb2+(aq) ! using the smallest possible integers. I got: 2Al(s) + 3Pb2 ==> Al2Pb3 Calculate the standard free energy. Faraday’s constant is 96485 J V · mol Answer in units of kJ/mol. I know the formula is -nFE but...

Find the emf for the cell Cr(s) |Cr3+(aq, 0.37 M) || Pb2+(aq, 0.0095 M) | Pb(s). Answer in units of V I kept getting .55V but it is wrong. Can someone please help me?

train A and B are traveling in the same direction on parallel tracks. train A is going 80 miles per hour train B is going 84 miles per hour. train A past a station at 2:15 am train B passes at 2:45 am what time will train B catch train A

2. Explain how the tension force gets transmitted along from one end of a string to the other. Does the amount of force that gets transmitted depend on how elastic or stretchable the string is? Explain.

is the force exerted by the wall on the person’s hand passive or active?

A 0.145 kg baseball pitched at 38.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 55.0 m/s. If the contact time between bat and ball is 3.40×10−3 s, calculate the average force between the ball and bat during contact.

Please help me do these problems. I don't understand how to do weighted averages. Mrs. Gleason invested a portion of 32000 dollars at 9% interest and the balance at 11% interest. How much did she invest at each rate if her total income from both investmen...

A 1790-kg car is traveling with a speed of 15.6 m/s. What is the magnitude of the horizontal net force that is required to bring the car to a halt in a distance of 78.4 m?

Explain the difference between a Doctor of Dental Surgery and Doctor of Medical Dentistry. Explain the difference between an allopathic and osteopathic physician.

im in the 5th grade and i need help is on metric measures and conversoins

Tarzan tries to cross a river by swinging from one bank to the other on a vine that is 9.0 m long. His speed at the bottom of the swing is 8.8 m/s. Tarzan does not know that the vine has a breaking strength of 1.0 103 N. What is the largest mass that Tarz...

Complete the table below: Answer the following for a body centered unit cell. (Hint: Helpful information can be found by going to the "Lattice" menu, choosing "Cubic", and then choosing "Body-Centered" in the Crystalline Solids program.) Crystalline Solid...

f(x)=2x²-Bx+4 and f(3)=13, what is the value of B?

A Gallup Poll asked, "In general, how often do you experience stress in your daily life - never, rarely, sometimes, or frequently?" Gallup's report said, "Results are based on telephone interviews with 1,027 national adults, aged 18 and older, conducted D...

what is the mass of a single oxygen autom

If glucose is labeled with 14C in position C-1, where does this label end-up if the glucose goes through the oxidative phase of the pentose phosphate pathway?

4) phosphofructokinase-1 strongly inhibited by an ATP analog in which the oxygen atom joining the ƒÒ- and ƒ×-phosphorus atoms is replaced with a methylene group?

Enolase catalyzes the conversion of 2-phosphoglycerate (2-PG) to phosphoenolpyruvate (PEP). The deltaG’o for this reaction is +1.8 kJ/mol. If [2-PG] = 0.045 mM and [PEP] = 0.034 mM, what is the actual free energy, deltaG?

Why are both hexokinase and phosphofructokinase-1 strongly inhibited by an ATP analog in which the oxygen atom joining the beta- and y-phosphorus atoms is replaced with a methylene group?

X2-21x+84=0 that's xsquared (x- ? )(x- ? )

find the integral of (1+3t^5)^20*t^4dt

can someone please explain how to indicate where a label appears in a product? for example: where the label appears in 2-[14C]-Glycine --> AMP

Terrorism plots against the United States have caused the government to create the Department of Homeland Security with the hope of leveraging federal, state, and local police agencies; intelligence agencies; and immigration agencies to cooperate in commu...

describe the correct procedure for preparing 250 mL of .10M Ba(OH)2 from solid crystals of BA(OH)2 x 10 H2O. Assume you have all the necessary equipment and that deionized water is the solvent.

Solve the system. y=x+1 y=-2x+7 x= y=

wh from least to greatestat is 2.1,-6/10,-9/4,-0.75,5/3

a horizontal force of 290N is applied to a stationary wooden box in one direction, and a 800N horizontal force is applied in the opposite direction. What additional force is needed for the box to remain stationary?

A student took a 25 question true and false test answering the question randomly without reading. If a score of 18 is correct is the minimum passing graade, how likely is it that the random guesser will pass the test? This is binomial although there is a...

at 3:30pm kendra was 475 miles from home. At 7:00pm she was 258 miles from home Find rate of change in kendra's distance from home .... show work

translate to an equation F $ 0.30 folders and N $1.50 totals $12 can you determine 3 different combination of folders and notebooks that total $12

a person weighs 815 N on the earth, what is the persons weight on the moon?

if (g(x)=x,f(2)=7,and f'(2)=6. what is g'(&)?

find the point (or points) where the ellipse 9x^2+4y^2=36 has maximum curvature. don't even know where to start with this one.

a motorcycle traveling at 60mph hits a stopped car how far will the driver of the motorcycle be launch in feet

Answers

The following answers were posted by visitors named brian.

do you do high school physics

What is the best way to start a persnal narrative essay

show the process of a conversion of 1 furlong/1 fortnight to meters per second

34 yards for radius or the diameter? cuz it could either be (34x2) x 3.14= 213.52 yds or 34 x 3.14= 106.76 yds thats why you gotta state wether its diameter or radius

Quand tu vas a lecole

how would great Britain be affected if Americans closed their ports to the British ?

this is the case study and instead of the landor one i put lack of involvment Case Study â€“ Memorial Health System CPOE Implementation Memorial Health System is an eight-hospital integrated health care system in the Midwestern United States. The health s...

call your tutor rather than trying to get someone else to do your course work for you

i came up with the answer of 419 g

Th solution has a density of 1.049g/mL and only 40% of the solution is acetic acid

At normal temperature and pressure, air has a density of 0.001184 g/mL. What is the mass of air in a room that is 3.74 m by 3.45 m by 3.93 m? Answer in units of kg.

is it a double replacement reaction? 2NaNO3 + Hg2Cr2O7

Thank you Dr. Bob. with that information I figured out my question.

I got 8*10^-8 Is this correct?

is the force exerted by the wall on the person’s hand passive or active?

the kinetic energy on e- is negative

4-nitro-veratrole

63,875 is the answer I came up with. I hope this is the correct answer, but not 100% positive

actually 20 is b naadyia had the right answers sorry dee

Not 1:30 its 1:25

i don't know either so shut up stupid people get help from a teacher

Write the equation of the line with a slope of -5 and a y-intercept of (0,3).

just a note i now know how to do it but the method to do it will literally take up like 4 pages. if i solve for y=f(x) and use the equation for the curve, k. please tell me im missing something that will make this simpler.

ok got it. thank you. i also solve for y and plug it in right? so i can solve for x.

Cesium-137 has a half life of 30.0 years. If initially there are 8.0 kg of cesium-137 present in a sample, how many kg will remain after 60.0 years?

the answer is c

40.6 m/s 1.3 s -26 degrees

tea cup ml or l

Everyone here... You guys have no clue how much you guys just helped me.. like seriously.. Thanx!!!

I'm really confused on this problem too. Does anyone understand how to do it?????????

I solved and got 0.399m and that was wrong, so I don't know...

to find percentage

what is number 2 and 3

Complete the knput output table write the rule. 0 in - out 3/2 in 17/6 out 11/4 in - out 3 in 13/3 out - in 13/2 out i don t understand

S is in the interior of ∠PQR m∠PQS = 3X +11 m∠SQR = 110 m∠PQR = 16x + 4 Find the m∠PQS:

v is1/2 mv squared 2

I don't know (haha im witty)

0.25 this website is a joke the answer was wrong

I am having problem with the 1oo n. I know by taking the limit to the 1/n power gives me e in the denominator. How and what does (100n)^1/2n become?

How I can do this abswer

the first one is Muslims from Afghanistan the second one is right!

connections academy? lol

How did you get your q value?

868.3844538698p568u4

Answer my question please

Don't get it I'm in 4th grade

bruh this girl says its wrong then doesn't put the right answer what the fffffff

im sorry the question is Write an integer for each expression: [x} if x = -12

does the bar around the x have anything to do with the problem.

Disasters often follow natural hazards. A disaster's severity depends on how much impact a hazard has on society and the environment. To reduce the damage caused by natural hazards like an earthquake humans can build durable buildings that will be able to...

i really do not know the answer to this one

I want to be a member

What is the numbers for today

thanks i got a 93%

well Dr.Bob, I got m(1)(60-10)=40(80)+80(1)(100 What you think? I keep messing up.

Neglect heat gained from or lost to the in this 40.0 g of H2O(s) at 0.)°C added to a quantity of H2O() that has a tempera. surroundings temp of 60.0°C. The final temperature reached is 10.0°C. To what quantity of H2O() was the ice added?

haha yes but can someone pls answer le question

collin is 100% right thank you

Yea it's pretty hard to plagiarize you have the change words and usually write it in a different order

Thanks, anonymous for the ideas I was kinda having trouble but you helped me write it

number 1 im pretty sure is subject specific

I love this website but I also wish it never existed

this question is so frustrating i have no idea what its trying to ask

sadly i think mrs jay is right

I wish school wasn't about test grades or report cards

I was gonna do this one without help but the lesson is so long

I only needed help with the first one but oh well :I

gee thanks for the answers guys :I

100% is correct for 2021 connexus

bro i need this answer

Still would appreciate someone pointing us in the right direction :/

Why will citizens of G8 countries be better able to cope with the effects and impacts of climate change?