Posts by nathaly

Total # Posts: 22

Chemistry
Based on the following observations for 3 unidentified metals (Z, X, and D) and solutions of their metal cations (Zn+ and En+), rank the metals in terms of reducing agent strength, from lowest to highest. -When metal X is placed in an aqueous solution of En+, a dark residue ...

Math
Oh thanks! Now, I get it and thanks for the help. I can do this on my own now.

Chemistry
If you had a 100 mL of 2.00 M HCl and you added 100 mL to it what is the final volume and final concentration? The volume would be 200ml, but would the concentration just stay the same?

Calculus
A box with a square base and no top is to be built with a volume of 6912 in^3. Find the dimensions of the box that requires the least amount of material. How much material is required at the minimum?

Calculus
For a cylinder with a surface area of 20 20, what is the maximum volume that it can have? Round your answer to the nearest 4 decimal places.

Calculus
A rectangular box has a square base. If the sum of the height and the perimeter of the square base is 14 in, what is the maximum possible volume?

Chem
If you need to prepare 250.0 mL of a pH 5.00 buffer tha t has a total buffer concentration of acetic acid + sodium acetate of 0.050 M, how many moles of each will you need to prepare the solution? Given solutions of acetic acid and sodium acetate with concentrations of 0.10 M ...

Physics
Do you think that power generated by the electric company means the same thing as the power as explained in this lesson (meaning work over time)? Why or why not? My teacher gave a hint to "Think about each in terms of the amount of work done" Please help! Thank you!!

Physics
How could you use 100 pounds of force to lift a 200 pound weight? Explain precisely, listing any necessary distances and details. (This will take some converting!) I don't understand this question, could someone please help me? I think I only need the distances from the ...

Physics
How could you use 100 pounds of force to lift a 200 pound weight? Explain precisely, listing any necessary distances and details. (This will take some converting!) I don't understand this question, could someone please help me? I think I only need the distances from the ...

math
The answer is michael bought 11 shares each costing $16

MATH
The answer is 36 banner that she would need.

social studies
my doughet name nathaly cant answer social studies question and she need help please help her

social studies
Without our two political parties cutting across economic and geographic interests democracy as we know it could never have been made to funtion. The author probably meant to suggest that a) an important feature of u.s. political system is the broadly based appeal of the two ...

social studies
Without our two political parties cutting across economic and geographic interests democracy as we know it could never have been made to funtion. The author probably meant to suggest that a) an important feature of u.s. political system is the broadly based appeal of the two ...

History
Between 1935 and 1975, a period that included Worl War II, the birth rate rose from 16.9 to 25 per 1000 people. what was the most likely cause of this baby boom? a) the change in view toward artificial birth control methods b) the exxpansion of the middle class and its new ...

History
I think is c because baby boom is a recovered of the soldiers that died in world war II

History
Between 1935 and 1975, a period that included Worl War II, the birth rate rose from 16.9 to 25 per 1000 people. what was the most likely cause of this baby boom? a) the change in view toward artificial birth control methods b) the exxpansion of the middle class and its new ...

History
a study of the causes of the american revolution of 1776, the french revolution of 1789, and the russian revolution of 1917 best supports the generalization that revolution is most likely to occur when a) a society has alower standard of living than those around it b) a ...

History
i think is c) but i'm not sure

History
Without our two political parties cutting across economic and geographic interests democracy as we know it could never have been made to funtion. The author probably meant to suggest that a) an important feature of u.s. political system is the broadly based appeal of the two ...

Science
Which of the following is a nonelectrolyte? a) C3 H8 (propane gas) b) H2 SO (sulfuric acid) c) HCL (hydrochloric acid) d) HNO 3 (nitric acid) e) NaCL (table salt)