Questions Asked on
June 2, 2018

  1. Chemistry Honors

    When a Bunsen burner is ignited, it begins a combustion reaction of methane gas in the air. CH4 (g) + 2 O2 (g) CO2 (g) + 2 H2O (l) How many moles of water will be produced from the complete combustion of 4 moles of methane? Answer: 8

    asked by Amber M.
  2. Trig

    The seats of a Ferris wheel are 40 feet from the​ wheel's center. When you get on the​ ride, your seat is 6 feet above the ground. How far above the ground are you after rotating through an angle of 17pi/4?

    asked by Erin
  3. Chemistry Honors

    Which of the following compounds would be able to conduct electricity in molten form? A. CH4 B. PCl3 C. CO2 D. NaCl Answer: NaCl

    asked by Amber M.
  4. Finite Math

    A pair of dice is rolled and the resulting sum is odd. The complement of this event would be the sum of that is a multiple of 3? True or false

    asked by DeeDee
  5. biochem

    If 10mL of 1 M HCl is added to 1L of 0.01 M phosphate buffer, pH 7.2, what is the resulting pH? Also what are the conc of H2PO4^1- and HPO4^2- in the final solution? HCl: M = mol / L 1M = mol / 0.01L = 0.01 mol phosphate: M = mol / L 0.01M = mol / 1L =

    asked by Liam
  6. Chemistry Honors

    In a science lab, acids and bases are often stored in high concentration "stock" bottles and then diluted as needed. If 100 mL of a 12 M solution of HCl is diluted to a final volume of 500 mL, what would be the final concentration of the diluted HCl?

    asked by Amber M.
  7. Chemistry Honors

    Which of the following subatomic particles have a mass of approximately 1 amu? I. protons II. neutrons III. electrons A. I and III only B. I, II, and III C. I only D. I and II only Answer: D

    asked by Amber M.
  8. Calculus

    1. use the definition mtan=(f(x)-f(x))/(x-a) to find the SLOPE of the line tangent to the graph of f at P. 2. Determine an equation of the tangent line at P. 3. Given 1 & 2, how would I plot the graph of f and the tangent line at P if : f(x)=x^2 +4,

    asked by Madi
  9. Statistics (Probability)

    I just asked a question a few minutes ago. But this is the last two questions I need help with. I have tried a couple different answers for both and still can't seem to get the correct ones. Four draws are going to be made at random with replacement from

    asked by Lilly
  10. Chimstery

    (white Powder) : 42.2% carbon, 6.4% Hydrogen, and 51.4% Oxygen Formula Mass = 342.2965 amu Molecular Formula: Empirical Formula: Identity?what does the drug do?

    asked by Emily
  11. business

    additional investment by the owner of 90000

    asked by maxwell
  12. Finite math Probability

    Classical probability of an event is a real number between 0 and 1, where 0 means: a. event is not given b. it will always happen c. it will never happen d. answer choice not given e. the choices are always not equal

    asked by DeeDee
  13. Trig

    The angular speed of a point on a planet is 3pi/7 radian per hour. The equator lies on a circle of radius approximately 9000 miles. Find the linear​ velocity, in miles per​ hour, of a point on the equator.

    asked by Erin
  14. History

    1. What role did colonialism play in the setling of the Pacific Northwest? select all that apply it brought an end to the fur trade. it discouraged exploration of the region by European explores. it made European settlers believe that they had a right to

    asked by Anonymous
  15. Chemistry

    How many carbon mol in 2.2grams of CO2

    asked by Robinson
  16. Chemistry Honors

    Use the diagram below to answer the following question. What will be water's phase of matter at a temperature of 74°C and a pressure of 4.4 mm? A. mostly liquid B. mostly solid C. solid, liquid, or gas D. mostly gaseous Answer: D

    asked by Amber M.
  17. Geometry


    asked by Ethan
  18. business

    state the effect of independent transactions on owners capital,purchasing stock of 60000 on credit

    asked by maxwell
  19. English

    Consider the following sentence: "Adam believes that Julio drives a red car" How many subjects does this sentence contain? List them. How many direct objects does this sentence contain? List them. --- I think there are two subjects, Adam and Julio. As for

    asked by James
  20. Finite math Probability

    Find the probability of obtaining exactly one tails when flipping four coins

    asked by DeeDee
  21. English

    Identify the meaning relation for each example. Possible answers are synonymy, antonymy, polysemy, homophony, contradict, hyponymy, hypernymy, paraphrase, contradiction. a) chair / furniture b) run: verb meaning to walk rapidly / run: a point in baseball

    asked by James
  22. History

    What natural resources have remained significant to Washington economic activity from the time of European colonization to today? 3 choice A. airplanes B. Factories C. Farmland D. Forests E. Genetics F. Railroads G. Research facilities H. Waterways My

    asked by Josh
  23. Finite math Probability

    Dependent events are one or more events than influences the probability of another event. Conditional probability is NOT a measure that influences one or more events. True or false

    asked by Nicki
  24. Thank you Jiskha Teachers

    I just wanted to say thank you jiskha teachers for helping me get through 8th grade. My last day of school was yesterday and I'm going on to highschool next year. Thanks for helping work out, check, or help me solve any problems I couldn't get through, you

    asked by Jordan
  25. Statistics (Probability)

    Hi there! I have been working on this problem for quite a while and I keep getting it wrong. A deck is shuffled and three cards are dealt. (a) Find the chance that the first card is a king. Give your answer as a fraction. (b) Find the chance that the first

    asked by Lilly
  26. Science

    If 100 bacteria get into your body and reproduce every 20 minutes how many will there be in 2 hours

    asked by Mansi
  27. Math

    The digits at the ten place and thousand place are inter changed in the number 71920396. which number original or new

    asked by Ayush
  28. Civic education.

    Define the pillars of democracy?

    asked by Anonymous
  29. science

    In what ways might individuals of the same species compete with each other if they are (a) herbivores (b) carnivores (c) producers

    asked by need help