# Questions Asked onAugust 21, 2017

1. ## chemistry

A quantity of 85.0 mL of 0.900 M HCl is mixed with 85.0 mL of 0.900 M KOH in a constant-pressure calorimeter that has a heat capacity of 325 J/C. If the initial temperatures of both solutions are the same at 18.24C, what is the final temperature of

2. ## Algebra

How many variable terms are in the expression 3x3y + 5xz − 4y + x − z + 9? (Input a numeric value only.) I already did this question and got it wrong, I just want to know the correct answer to prevent further mistakes. My answer is 5

3. ## Biochemistry

What is the condensed structural formula of cyclopropane?

4. ## science

Which statements best describe how the properties of gases and plasmas differ? (Select all that apply). The particles of plasmas have a higher kinetic energy than the particles of gases. Gas particles are charged while plasma particles are uncharged.

if xy is rational must either x or y be rational

6. ## Statistics

Someone help me understand this please?? The following is a frequency data set for test scores in a small class. Construct a cumulative frequency plot displaying the data on your own paper, calculator, or StatCrunch. Then, describe the the graph in a

7. ## Calculus

Find the length of the parabola y^2=4ax cut off the line x=a about the x-axis

8. ## science

liquid water has a constant density. Do you agree or disagree with this statement? Why or why not? Be sure to support your argument by using what you have learned about the states and motion of matter.

9. ## Physical Science

How will you prepare a laboratory procedure to verify the validity of the hypothesis? Give example.

10. ## science

liquid water has a constant density. Do you agree or disagree with this statement? Why or why not? Be sure to support your argument by using what you have learned about the states and motion of matter. please help

11. ## physics

A body of mass 5kg moving with a speed of 3m/s collides head on with a body of mass 3kg moving in the opposite direction at speed of 2m/s The first body stops after the collision The final velocity of the second body is Ans:3m/s

12. ## Statistics

Which of the following is not true about histograms? A) The bars must touch each other. B) A histogram may be symmetric or skewed depending on the selection of bin width. C) Each bin must have the same width. D) Histograms may represent categorical data.

13. ## History

Iodine is a nonfuel mineral used in many different products, including pharmaceuticals, photography, and disinfectants. Why would iodine be influential to Oklahoma's economy? A. Oklahoma is the only state the produces iodine. B. More iodine is produced

14. ## English

The diction of "At the Tourist Centre in Boston" can best be described as A. Emotionally charged B. Colloquial and relying on slang C. Informal and simple D. Mostly figurative and abstract I'm stuck between "Emotionally charged" and "Mostly figurative and

15. ## SCIENCE

why does a fly experience greater acceleration when it collids with a fast moving bus

16. ## physics

Three particles of equal masses travelling with velocities of 10m/s,20m/s and 30m/s respectively along x-axis at an angle of 30° to the direction of positive x-axis and Y-axis collide simultaneously and get sticked to each other 1)The combined particle

17. ## Math

How many rectangles can you build with a prime number of square tiles

18. ## math

At 3 p.m. the temperature was 9° F by 11p.m., it had dropped 31°F. What was the temperature at 11 p.m.?

19. ## Math

A map scale indicates that one centimeter equals 10 km two cities are 8 cm apart on the map how far apart are they in real life

20. ## AP Calc

A rational function f(x) contains quadratic functions in both the numerator and denominator. Also the function f(x) has a vertical asymptote at x=5, a single x intercept of (2,0) and f is removeably discontinuous at x=1 because the lim x-> 1 is -1/9. Find

21. ## Maths

The numerator of a fraction is 5 less than the denominator. If 1 is added to both the numerator and denominator the fraction would become 2/3. Find the fraction

22. ## AP Global History

How did these events (protestant reformation, counter reformation, commercial revolution, renaissance, crusades, scientific revolution, and ottoman expansion) lead to the age of exploration?

23. ## History

In what ways were the southern cities similar to the northern cities

24. ## Maths

Mr Lee start from her home,and goes 250m due south,then 200m due east,and finally 100 due south to a shopping mall.Find the distance between her home and shopping mall.

25. ## Math about whole number

apples are sold at 3 for \$2 at busy mart. at big food, the same apples are sold at 5 for \$2. kassim buys 15 apples from big foods instead of buys mart. how much does he save?

26. ## math

5 years from now a boy's age will be 2 time the square of what it was 5 years ago.how old is he now? a)15/2 years c)7 years b)3 years d) 8 years

27. ## Algebra

Use the distributive property to write the sum as a product. 2x+2y

28. ## chemistry

Knowing that 1 mol of a certain monoprotico acid, HX, contained in 1 litre aqueous solution, this 50% ionized, point the value of its ionization constant.

29. ## English

How is the fellowship of the ring similar to the aeneid?

30. ## Maths

Mr Lee start from her home,and goes 250m due south,then 200m due east,and finally 100 due south to a shopping mall.Find the distance between her home and shopping mall.

31. ## Maths

Hi I am new my friend told me to get help here.please can you help me by telling me an easy method to solve this. 9y+2x=

32. ## Math

There were 49 students in a gym class.if 3/7 were boys and the rest were girls, how many boys were in the gym

33. ## AP Global History

How did rum represent the triumph and oppression of the first era of globalization?