Posts by anonymous

Total # Posts: 115,193

Chemistry
is the last part hydrochloric acid or hydrogen chloride??

Geography
so Egypt as country and Africa as the continent

Math
Jalisa is using 5/6 ward of ribbon to make bows for her party favors. Jalisa needs to make 6 bows. What is the length of the ribbon used for each bow?

Science
How does the mass of a bowling ball that has been rolled down the lane affect the kinetic energy? A) The kinetic energy does not depend on the mass of the bowling ball. B) The kinetic energy is increases proportional to the mass of the bowling ball. C) The kinetic energy is ...

Science
Jill is making lemonade. She mixes together some water, ice, lemon juice, and sugar. The lemonade is classified as a(n) _________. A) compound B) element C) mixture **** D) solution

Science
If a chemical reaction such as photosynthesis begins with 6 atoms of carbon (C), how many atoms of carbon (C) should be in the products? A) 2 atoms of carbon (C) B) 3 atoms of carbon (C) C) 6 atoms of carbon (C)**** D) 12 atoms of carbon (C)

Science
If water with the mass of 15.0 grams is heated into water vapor in a closed system such as a closed glass jar, what is the mass of the gas after the water completely vaporizes? A) 13.5 grams B) 15.0 grams C) 16.5 grams D) The mass cannot be determined without knowing the volume.

Science
A cold cast iron skillet is placed onto a stove top. When the stove is turned on, the skillet becomes very hot. Why does the skillet become hot? A) The skillet is losing energy (heat) to the stove. B) The stove is gaining energy (heat) from the skillet. C) The skillet is ...

Science
Thank you

Science
A solar panel and example of converting light energy to electrical energy?

Science
Evidence of a chemical change does NOT include A) evolving a gas. B) change in color. C) change in shape.*** D) change in temperature.

Science
How many atoms of zerconium are there in 1 gram of it?

algebra
The mean score on Mr. Pascal’s first semester exam for his 28 students is 73 points. If he removes the lowest score of 19 points, what is the adjusted class average (arithmetic mean)?

algebra
Automakers’, Inc. is a car manufacturer and currently has three operational plants cleverly named Plant A, Plant B and Plant C. Plant A can produce 100 cars a day. Plant B can produce 80 cars a day. Plant C can produce only 70 cars a day. If all three plants are running ...

Math
2/3 of a blueberry pie is left in the refrigerator if the leftover pie is cut into six equal slices which fraction of the original pie is in each slice

Social Studies
Okay, I'm soo sorry. I was reading in my book but I couldn't find anything about it and I didn't know what else to do....... so I was wondering if anybody could help me.

Alg 1
Tamika’s dad bought a Mustang convertible for 12,000 dollars to celebrate his first job in 1978, which paid him 15,000 dollars a year. If Tamika is to use the same fraction of her salary as her dad to buy a Mustang convertible, which now sells for 32,000 dollars, what ...

Social Studies
okay thanks!!

Social Studies
Are you sure? I can't get it wrong.......

Social Studies
I think it is D, but I am not sure.

biology
Why do biologists believe that a primitive choanoflagellate protist is an ancestor of all animals?

Biology
what are the changes that occur in the male and female reproductive systems during puberty?

Math/Algebra
Thank you!

Math/Algebra
I change my answer to A

Math/Algebra
A restaurant has one type of lemonade that has 12% sugar and another that is 7% sugar. How many gallons of each does the restaurant need to make 20 gallons of a lemonade mixture that is 10% sugar? a. 12 gallons of the 12% lemonade and 8 gallons of the 7% lemonade. b.10 gallons...

MATH
The sum of three consecutive even integers is 54. What is the smallest integer being added? A) 8 B) 10 C) 12 D) 16

Algebra
a chemist wants to mix a 22 acid solution with a 46% acid solution to get 32 gallons of 37% acid solution. How many gallons of the 22% acid solution and how many gallons of the 46% acid solution should be mixed?

Math
Find f(-10). f(x) = 7x - 5 A) -75 B) -65 C) 65 D) 90

Math
Thank you

Math
Find f(-10). f(x) = 7x - 5 A) -75 B) -65 C) 65 D) 90

MATH
It's D.

MATH
Jerry charges $15 for each lawn that he cuts. His earnings vary from week to week. If he cuts at most 10 yards per week, his profit is represented by y = 15x - 10 because he allows $10 for gas and oil for his equipment. What do the domain values represent on the graph? Which ...

Math
2/3 of a blueberry pie is left in the refrigerator if the leftover pie is cut into six equal slices which fraction of the original pie is in each slice

Math
Three zeroes of a fifth degree polynomial function are ?,4-6i, and -2+11i. Determine the remaining zeroes of the function.

Math
4. Describe the behavior of the graph at the x-intercepts for the function f(x) = (2x-7)^7 (x+3)^4. Be sure to identify each x-intercept and justify your answer.  How does each exponent change the look of the graph at the x-axis?

Chemistry
How many unpaired electrons are there in the following transition metal ions in their hexacyano-complex ions? Fe^3+, Pd^2+,CO^2+

physics
a package is released from a helicopter flying horizontally at a constant soeed of 40m/s. the oackage takes 3.0s to reacg the ground. the effects of air resistance can be ignored. what are the horizontal and vertical speeds of the package just before it hits the ground?

Chem help
Consider the following system, which is at equilibrium, CO(g) + 3 H2(g) <--------> CH4(g) + H2O(g). The result of removing some CH4(g) and H2O(g) from the system will be A. more CH4 is consumed to restore the equilibrium B. Kc decreases C. more H2O(g) is consumed to ...

Math
The distance from Greg’s house to Tom’s house is 3/8 of a mile. Which decimal represents this distance?

Math-Middle School NO FRACTIONS OR DECIMALS PLEASE
Ok, thank you Ms. Sue!

Math-Middle School NO FRACTIONS OR DECIMALS PLEASE
Ms.Sue I'm confused about how to get the band posters. So far I have gotten 120/80 = 96/____. I can't figure out the band posters

Math-Middle School NO FRACTIONS OR DECIMALS PLEASE
A collector has 120 movie posters and 80 band posters. She wants to sell 24 movie posters but still have her poster collection maintain the same ratio of 120:80. If she sells 24 movie posters, how many band posters should she sell? Complete the explanation to find out how many...

Chemistry
Using the Krevzi method construct histidine and pyridoxine(Vitamin B6).

math
A spinner with 9 equally side slices 1 white, 1 black, 7 grey, what are the odds in favor of landing on a grey?

Physics
Dahnay Travels On A Bus To School.He Gets On The Onthe Bus Which Then Accelerates From Rest To 18m/s In 20secnds.The Bus Travelr At This Velocity For 60seconds.Tge Bus Slows Down And Comesto Rest In 15seconds.Itis Stationary For 30seconds While People Get Onthe Bus.The Bus ...

physics
In a uniform magnetic field, can an Amperian loop ever have a non-zero value

physics
a car is pared on a cliff overlooking the ocean on an incline that makes an angle of 24 below the horizontal. the negligent driver leaves the car in a neutral and emergency brakes are defective. the car rolls down the incline with a constant acceleration of 4 m/s^2 for a ...

finance
Suppose you obtain a $3,000 T-note with a 3% annual rate, paid quarterly, with maturity in 5 years. How much interest will you earn?

Math
If it took you 16.30 seconds to run 100m, how long would it take for you to run 60m?

Chemistry
Could u actually explain your calculations for solving this without dropping the s from (s+0.004) and the with dropping it. I'm not getting the same answers as u

Chemistry
Could u actually explain your calculations for solving this without dropping the s from (s+0.004) and the with dropping it. I'm not getting the same answers as u

Chemistry
This helped a ton thank you very much

Chemistry
The latter is correct

Chemistry
Caluculate the molar solubility of PbCl2 in 0.0040 M KI solution. The Ksp of PbI2 - 7.2 x 10^-9. The answer should be 3.29 x 10^-4. This is my work so far PbI2<=====>Pb^+2 + I- PbKI2----->Pb^+2 + KI^-1 7.2 x 10^-9=(s)(s+0.0040M) Assume s<<0.0040 7.2 x 10^-9=(s)(...

Chemistry
Will a precipitate form when 20.0mL of 1.8 x 10^-3M Pb(NO32 is added to 30.0mL of 5.0 x 10^-4M Na2SO4? The Ksp of (PbSO4) is 6.3 x 10^-7.

Chemistry
Will a precipitate of CaSO4 form if 40.0mL of 2.0 x 10^3M CaCl2 is mixed with 60.0mL of 3.0 x 10^-2 Na2SO4?

statistics
The distribution of grades of 50 students in a certain subject is normally distributed with a mean of 86 and a standard deviation of 12. 6. 7. If the passing grade is 75, how many failed in the subject?

Math
A bathtub is filled with 100 gallons of water. A cup of milk is then poured in and mixed thoroughly with the 100 gallons of water. A cup of liquid is then taken out and placed in a bowl. What fraction of the liquid in the bowl is milk? What is the ratio of milk to water?

English Help Re-wording
Help with re-wording my sentences Please: After September 11th the issue of racial profiling has expanded to more directly affect South Asian Americans, Arab Americans, Muslim Americans, and those identified as foreigners or immigrants. These communities are joining with ...

Math transformations
A parallelogram has vertices at A(-2,-1), B(-2,1), C(1,2),and D(1,0). If it is translated 1 unit right and 1 unit up, what are the vertices of the image?

Biology
Some protists were once classified as simple plants, others as fungi. Why are protists difficult to classify?

probability
question 2 and the first part of 4 and 5 =0

probability
This figure below describes the joint PDF of the random variables X and Y. These random variables take values over the unit disk. Over the upper half of the disk (i.e., when y>0), the value of the joint PDF is 3a, and over the lower half of the disk (i.e., when y<0), the...

Math
Miss sue please help me!

Math
The amount of seltzer is 12 and it's 8 for the orange juice

Science
Ms Sue plz?

Science
Me either, what do you think it is?

Science
can u do my science helppp

Science
Which represents the correct functional order (first to last) of the human digestive system? A) mouth?esophagus?stomach?large intestine?small intestine?rectum B) mouth?esophagus?stomach?small intestine?large intestine?rectum C) mouth?esophagus?small intestine?large intestine?...

Science
Thx can u answer my others?

Science
Which best explains why children often look like their parents? A) Traits, or characteristics, are passed on to offspring from parents. *** B) Before being born, characteristics of offspring are randomly formed. C) Babies begin to look like their parents as their features ...

Science helppp
someone plz?

Science helppp
Through the miracles of medicine and technology, researchers have had some success with growing and transplanting hollow, relatively simple organs such as tracheas and bladders. Building organs like the heart and lungs have proved to be much more difficult. . Doctors have had...

Social Studies helppppp
Thanks! Can you check the ones below please?

Social Studies helppppp
My answer is D correct?

Social Studies helppppp
Which statement BEST reflects the difference between tariffs and quotas? A) Tariffs raise prices on exports, while quotas set limits on imports. B) Tariffs raise prices on imports, while quotas set limits on exports. C) Tariffs raise prices on exports, while quotas set limits...

Help plz
Thanks Damon plz check others

Help plz
Not a lot at all, so The answer is D

Help plz-ss
Plz help

Help plz
Social Studies

Help plz
All of these are major issues facing governments in Africa EXCEPT A) famine due to drought, soil erosion, and overpopulation. B) HIV/AIDS becoming the leading cause of death for adults. C) a lack of sufficient, continent-wide economic development. D) pollution and acid rain ...

So confused
Thank you can you check my top one please?

So confused-DAMON
Is it B???

So confused
B

So confused
Which of these would be the BIGGEST threat to combatting the spread of HIV/AIDS in Africa? A) a disruption in the exporting of oil B) political instability within a country C) a trade embargo with the Middle East D) boycotting the next Summer Olympic games I picked A correct...

SS-DAMON PLZ HELP
No please pick one I choose c correct

SS
Okay I eliminated B&D so know I have A and C

SS
so c?

SS
C?

SS
27) How might specialization encourage trade? A) One nation will sell its specialty to others ONLY if they don't compete. B) Nations stop using products from other nations to support their own economies. C) Nations agree to work together as a team to make it easier for ...

SS
Thanks!

SS
I would say..D?

SS
What should I go with?

SS
Could I go with C?

SS
Which of these resources has caused the most conflict in Africa in the years since World War II? A) oil and lumber B) coal and copper C) natural gas and oil D) arable land and water idk I don't know what do I do? Any hints or clues?

SS
I get it, so it B?

SS
Which of these would be the BIGGEST threat to combatting the spread of HIV/AIDS in Africa? A) a disruption in the exporting of oil B) political instability within a country C) a trade embargo with the Middle East D) boycotting the next Summer Olympic games I think A but Im ...

SS
thx

SS
Ms Sue?

SS
Which of these BEST expresses the goal of Pan-Africanism of the 1960s? A) to resist communist forces in the Cold War B) stronger bonds between the nations of Africa C) to fight for the end of imperialism in Africa D) the formation of a single government throughout Africa 38) ...

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