# Posts by Monique

Total # Posts: 325

Chemistry
I figured it out yay

Chemistry
Calculate the empirical formula for the compound 1.245g Ni, 5.381g I Can you help with the steps please

Chemistry
Calculate the mass (in kg) of each compound that contains 1.0 x 10E3 kg of iron. Fe2O3 I really can't figure this one out please help step by step

Chemistry
Given 2.05 mol Hg find mass Hg 2.05 mol Hg x 200.59g Hg / 1 mol Hg =411g Hg My question is would my answer be wrong if I put it in scientific notation 4.11E2

Chemistry
Ok thank you very much

Chemistry
Ok I think I'm gettingvit I hope, I need to check my work. Given 0.0449 mols Pt Find mass 0.0449 mol Pt x 195.08/1 =8.76g Pt Am I right

Chemistry
Confused again ok I have to find the number of atoms in carbon with a mass of 13.5. So this is what I didi. 13.5 / 12.01* 6.022 *10^23= 6.77x10^23 but the correct answer is 6.74x10^23 what have I done wrong

Chemistry
Ok I'm given 38.5 mg as mass. I have to find moles and number of atoms. Am I also converting mg to g? If so please help

Chemistry
How many moles of gold atoms do 3.45 x 10^24 gold atoms constitute. This is what I did 3.45 x 10^24 x 1 / 6.022 x 10^23 = 573 am I right

Chemistry
Ok what I did wrong was say 48 O atoms instead of just 3. Thank you very much

Chemistry
Very confused! Converting between grams of a compound and grams of a constituent element Determine the mass of oxygen in a 5.8 g of NaHCO3 5.8 g NaCHO3 * 1 mol NaCHO3/ 84.01 NaCHO3 * 48.00 mol O / 1 mol NaCHO3 * 16.00 g O/ 1 mol = I got 53 but the answer is 3.3 g O Help what ...

Chemistry
When I worked the question I got cu = 0.0196 and o= 0.0196 so the empirical formula is CUO

Chemistry
A 1.250 g sample of copper wire was heated in air and reacted with oxygen to give 1.565 g of copper oxide product. Calculate the empirical formula of the copper oxide. Please help I'm lost. I need step by step Please and thank you

Geometry
A 30-foot cable is suspended between the tops of two 20-foot poles on level ground. The lowest point of the cable is 5 feet above the ground. What is the distance between the two poles?

Math
Sorry if you spend \$4 every 7 mins, in 9 days you'll spend how much

Math
A car covers 2924 km in 43 hrs. What is it's speed

Chemistry
Write the Lewis structure for each ion Al3+ Mg3+ Se2- N3- My question is why does Se2- get a bracket and 8 dots. And the same for N3-. I hope I'm making sense.

Math
Chris works an electrician with the Central Electric Company. He earns \$16.25 per hour with time and a half after 40 hours. If he works 43 hours Monday through Friday, how much will he earn?

Chemistry
I don't understand what valence electrons and core electrons are. Ex: Se = 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4 What makes 4s2 and 4p4 valence electrons and the rest core

Science
When a boxer has been knocked out what part of his brain has been affected?

Science
Rip Van Winkle was a man who slept 20 years Upon autopsy, it was found that there was structual damage to his?

Psychology
When a boxer is knocked out, it is believed that his _____ has been affected.

Chemistry
Silver has a density of 10.5 g/cm3 and gold has a density of 19.3 g/cm3. Which would have a greater mass, 5 cm3 of silver or 5 cm3 of gold

Chemistry
An irregular shaped stone was lowered intro a graduated cylinder holding a volume of water equal to 2.0 ml. The height of the water rose to 7.0 ml. If the mass of the stone was 25 g, what was the density

Law
Thanks Ms. Sue

Chemistry
What are the atomic number (z) mass number (a) and symbols of the carbon isotope with 7 neutrons. What is and how do I get the mass number?

Law
What was the real significance of the Mempa case? What is the difference between a suspended sentence and probation?

Chemisrry
If the specific gravity of E85 gasohol is 0.801' what is the mass of 1.00 gallon of th E85 fuel. Given 1 gallon = 3.75 liters

Math
A thin lead apron is used in dental offices to protect patients from harmful X rays. If the sheet measures 75.0 cm by 55.0 cm by 0.10 cm, and the density of lead is 11.3 g/ cm, what is the mass of the apron in grams?

Chemistry
Serine exists in its zwitterion form at a pH of 5.7. Draw the structural formula for the same. Explain the manner in which the structural formula of polar and non-polar amino acids would vary.

marketing
What is the best approach for marketing services such as a City's best features to attract tourism?

english
using atleast five different pronouns, adverbs, and adjectives, write several sentences describing a recent interaction with a friend of a "ritual" you celebrate.

Chemistry
A 50g sample of metal was heated to 100 degrees Celsius and then dropped into a beaker containing 50g of water at 25 degrees Celsius. If the specific heat of the metal is .25 cal/g degrees Celsius, what is the final temperature of the water? A. 27 B. 40 C. 60 D. 86 (units are ...

physics
In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a holding tank. Assume that ...

Finance
A three-year bond has 8.0% coupon rate and face value of \$1000. If the yield to maturity on the bond is 10%, calculate the price of the bond assuming that the bond makes semi-annual coupon interest payments.

linguistics
Give two different kinds of specific examples of transfer from an L1 to and L2? A particular grammar construction, a particular pronunciation, and a particular word meaning

linguistics
Describe how the verb argument structure(VAC)subject+verb++lo… is learned by a second language learner? why or how based on Ellis and Larsen-Freeman(2009) and Eskilsden(2008) all make the case that second language learning emerges from usage, from a learner's ...

linguistics
Describe what contrastive analysis is and what transfer is(both positive transfer and negative transfer)?

linguistics
Describe what contrastive analysis is and what transfer is(both positive transfer and negative transfer)?

linguistics
Give two different kinds of specific examples of transfer from an L1 to and L2? A particular grammar construction, a particular pronunciation, and a particular word meaning

Green
Describe how the verb argument structure(VAC)subject+verb++lo… is learned by a second language learner? why or how based on Ellis and Larsen-Freeman(2009) and Eskilsden(2008) all make the case that second language learning emerges from usage, from a learner's ...

math 1-2
how do you change a linear equation to make the graph steeper?

math 1-2
thank you very much Reiny

math 1-2
how do you change a linear equation to shift it up or down

Math
48 = dividend 6 = divisor 8 = quotient

math
y=2x-5 a third as steep

Physics
Three identical stars of mass M form an equilateral triangle that rotates around the triangle's center as the stars move in a common circle about that center. The triangle has edge length L. What is the speed of the stars?

Physics
A construction worker attempts to lift a uniform beam off the floor and raise it to a vertical position. The beam is 2.50m long and weighs 500N. At a certain instant the worker holds the beam momentarily at rest with one end at distance d=1.50m above the floor by exerting a ...

Algebra
maximize Z = 30x+50y subject to 2x+4y=100 and x+5y=80

An option can often have more than one source of value. Consider a logging company. The company can log the timber today, or wait another year (or more) to log the timer. What advatages would waiting one year potentially have? Name three considerations.

RSNHS
What is the limit of 1-2x^2 -2cosx + cos^2x all over x^2? please answer ASAP. TY

science
Standars enthalpy Mg(OH)2 + H2SO4 = MgSO4 + 2 H2O

algebra
5+16x<-59

statistics
use the normal distribution to approximate the desired probability. find the probability that in 200 tosses we will obtain at least 40 fives.

how should I start my paper on persuading my teacher that I'll get an A in her class

geometry
In an isosceles triangle, the measure of the vertex angle is 4x. The measure of each base angle is 2x + 10. What is the actual measure of the vertex angle?

COM156
How has media convergence changed American culture?

College physics
The magnetic field at the center of a 0.70-cm-diameter loop is 2.4 mT. What is the current in the loop? A long straight wire carries the same current you found in part a. At what distance from the wire is the magnetic field 2.4 mT?

College physics
If the force increases when the current increase what can you say about the force on a current element as a function of the current?

substitution method
7x+9y=-86 x-y=6

College physics
Find the following potential differences. The magnitude of the potential difference DeltaV1 across the resistor of resistance R1 = 15.0 Ohm. The magnitude of the potential difference DeltaV2 across the resistor of resistance R2 = 45.0 Ohm. The magnitude of the potential ...

College physics
Find the following currents. The current I_1 through the resistor of resistance R1 = 15.0 Ohm * The current I2 through the resistor of resistance R2 = 45.0 ohm. * The current I3 through the resistor of resistance R3 = 20.0 Ohm. * The current I4 through the resistor of ...

Geography
[THESE QUESTIONS ARE NOT THE SAME AS MY PREVIOUS POST) I am working on my take home quiz questions now...and i am not sure about the answers of the folowing questions...can anyone please help me to check???? THANKS A LOT!!!! (The "*" represents the answer I chose) ...

Geography
I am working on my take home quiz questions now...and i am not sure about the answers of the folowing questions...can anyone please help me to check???? THANKS A LOT!!!! (The "*" represents the answer I chose) In the United States, early warning systems have not ...

grammar
Could you please give an example of a topic sentence?

CRT 205
Assignment: Argument Evaluation · Read the article “Controlling Irrational Fears After 9/11” on pp. 456–458 of Appendix 1. · Identify at least two arguments in the article. Outline the premises and conclusions of each argument you find. Then, ...

History
What impact did Martin Luther and John Calvin have upon the perceptions and events of the Old World?

Final Project
Create a 750-1,050 word survival guide that will serve a a resource throughout your program. Your guide should be formatted as a paper.

science
what three vitamina and minerals undergo the greatest percentage of increase during pregnacy?

Sociology
Imagine a society in which there are no social classes- no differences in people’s wealth, income, and life chances. What would such a society be like? Would it be stable or would its social structure change over time? How could you apply Max Weber’s theory to this ...

chemistry
how do you figure out how to Balance H2SO4+pb(OH)4=pb(SO4)2=H20

Physics
A child riding a bicycle has a total mass of 40kg. The child approaches the top of a hill that is 10m high and 100m long at 5m/s. If the force of friction between the bicycle and the hill is 20N, what is the child's velocity at the bottom of the hill? (Assume no air ...

physics
Which has more momentum, a speeding baseball or an ocean liner at rest in a harbor? Baseball. Ocean liner. Both the same. Can't say without more information. 2 . A truck moves with a certain momentum. If both its speed and its mass are doubled, how much greater is its ...

physics
Which has more momentum, a speeding baseball or an ocean liner at rest in a harbor? Baseball. Ocean liner. Both the same. Can't say without more information. 2 . A truck moves with a certain momentum. If both its speed and its mass are doubled, how much greater is its ...

physics
Yes! Thank you so much! I realized that you had to put gravity in but I couldn't figure out where. Thanks again!

physics
A 4430-kg helicopter accelerates upward at 2.2 m/s2. What lift force is exerted by the air on the propellers?

science
what special seasonal event happened september 22 2009

AP Chemistry
An organic compound was synthesized and found to contain only C, H, N, O, and Cl. It was observed that when .150g sample of the compound was burned, it produced .138g of CO2 and .0566g of H2O. All the Nitrogen in a different .200g sample of the compound was converted to NH3, ...

buisiness
Which of the following would a company use to securely link to a new user within a day ?

math
if you have 5 candy bars and have to share them with 20 people but 1/4 of the people gave up 50% of the total number of people. what % of the people had no candy? how many of the total had more than their share? How much was the original share every one suppose to get?

Math (repost)
How do find the inverse function for this problem: f(x) = -(x+3)^2, x is greater than or equal to 3 I know the first thing you do is switch the variables, so it looks like this: x = -(y+3)^2 Then expand: x = -y^2-6y-9 And solve for y: x + 9 = -y^2-6y I get a little confused ...

Math
oh, i also meant that x is greater than or equal to 3. sorry.

Math
How do find the inverse function for this problem: f(x) = -(x+3)^2, x is greater or less than 3 I know the first thing you do is switch the variables, so it looks like this: x = -(y+3)^2 Then expand: x = -y^2-6y-9 And solve for y: x + 9 = -y^2-6y I get a little confused after ...

Calculus
An open box is to be made from cutting squares of side "s" from each corner of a piece of cardboard 25" by 30". Write an expression for the volume, V, of the box in terms of s. -I have no idea where to start on this. I know V=lwh (length*width*height), but ...

primary sources
Oh,so they are primary sources.Thanks for the info I get it now :).

primary sources
Are these quotes primary sources?Why? It give me pleasure to announce...that the...removal of the Indians...is approaching to a happy end...We could not wish to see this continent restored to the conditions in which it was found by our forefathers.What good man would prefer a ...

history
Are these quotes primary sources?Why? It give me pleasure to announce...that the...removal of the Indians...is approaching to a happy end...We could not wish to see this continent restored to the conditions in which it was found by our forefathers.What good man would prefer a ...

Math
Using the TI-89 Titanium calculator: Find the largest and smallest values of each of the following functions on their given intervals. (I'll show you one) f(x) = 2^x + x^2 [-4, 1] I put in the function on the Y= screen as shown, then -4 < x < 1 (it's actually the...

Algebra
maximize Z = 30x+50y subject to 2x+4y=100 and x+5y=80

math
So 1 3/16?But how did you change th 5 1/16 to 4 17/16?

math
A piece of metal 3 7/8 inches long is to be cute from a longer piece of 5 1/16 inches.What will be the length of the remaining piece?

Physical Science
When attempting to solve a gravitational potential energy equation, is the free-fall acceleration always 9.8m/s2?

math
Actually calculate the final amount on \$1000 compounded annually at 6% per year for 4 years.

what do i find answer to this question how much time has passed? start 11:05 am end 3:20 pm

History
was Rupert's Land named after King Rupert?

CHEMISTRY
10-g what does it mean?

high school
how many ml of moffine at a dosage of 0.1mg/kg in a consentration of 1.5mg/ml should be given to a 30kg dog

science
how many ml of moffine in a dosage of 0.1mg/kg in a consentgration of 1.5mg/ml should be given to a 30kg dog.

college
how many ml of moffine at a dosage of 0.1 mg/kg in a consentgration of 1.5mg/ml should be given to a 30kg dog.

urbanization
I need help with a 7 to10 slide power point on 1996 award winners, dicssion how they over came one of the challenges

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