• Chemistry question? alpha beta?

    Polonium-218 decays with emission of an alpha particle to form X, which emits a beta particle to form Y, which emits an alpha particle to form Z. Identify X, Y, Z. How can i solve this problem?? Thanks for any input!
    Polonium-218 decays with emission of an alpha particle to form X, which emits a beta particle to form Y, which emits an alpha particle to form Z. Identify X, Y, Z. How can i solve this problem?? Thanks for any input!
    1 answer · Chemistry · 4 years ago
  • Blood cholesterol chemistry question? Help?

    Person A: Blood cholesterol concentration is 200. mg/dL Person B: Blood cholesterol concentration is 5.2 x 10^-3 M Are these values the same? If not, which is higher?? How can I solve this?? Thanks for any input!!
    Person A: Blood cholesterol concentration is 200. mg/dL Person B: Blood cholesterol concentration is 5.2 x 10^-3 M Are these values the same? If not, which is higher?? How can I solve this?? Thanks for any input!!
    2 answers · Chemistry · 4 years ago
  • Buffer solutions problem! Please help?

    Explain how the following combination can also from a buffer solution: 0.20 M H3PO4 and 0.10 M NaOH. Can anyone explain how to solve this problem?? Any input is appreciated!! Thanks!!!
    Explain how the following combination can also from a buffer solution: 0.20 M H3PO4 and 0.10 M NaOH. Can anyone explain how to solve this problem?? Any input is appreciated!! Thanks!!!
    1 answer · Chemistry · 4 years ago
  • Converting problem?

    Are these two values equivalent? If not which one is higher? 200. mg/dL and .0052M M equals molarity i believe Thanks!
    Are these two values equivalent? If not which one is higher? 200. mg/dL and .0052M M equals molarity i believe Thanks!
    2 answers · Chemistry · 4 years ago
  • Molarity problem?

    what is the molarity of a 20% (v/v) aqueous ethanol solution if the density of ethanol is 0.790 g/mL? thanks!
    what is the molarity of a 20% (v/v) aqueous ethanol solution if the density of ethanol is 0.790 g/mL? thanks!
    2 answers · Chemistry · 4 years ago
  • Chemistry question :)?

    which is a better source of energy 7.10 kcal/g or 33.9 kcal/g? how do you know? Thanks :)
    which is a better source of energy 7.10 kcal/g or 33.9 kcal/g? how do you know? Thanks :)
    2 answers · Chemistry · 4 years ago
  • Chemistry please help?

    how many grams are contained in 0.50 mol of C2 H6 ?? can someone please explain? thank you!!
    how many grams are contained in 0.50 mol of C2 H6 ?? can someone please explain? thank you!!
    1 answer · Chemistry · 4 years ago
  • Help! Chemistry problem?

    Determine the prouducts and ionic compounds of Barium Acetate and Calcium Chloride. After balance the equation. All I know is calcium chloride is CaCl2. Can some please explain how to solve this problem? thank you!
    Determine the prouducts and ionic compounds of Barium Acetate and Calcium Chloride. After balance the equation. All I know is calcium chloride is CaCl2. Can some please explain how to solve this problem? thank you!
    1 answer · Chemistry · 4 years ago
  • What is the ratio between these?

    what is the ratio between .0101 moles to .004 moles? Thank you!!
    what is the ratio between .0101 moles to .004 moles? Thank you!!
    2 answers · Chemistry · 4 years ago
  • Converting grams to moles? Help!?

    If i have 1.66g of Copper, how many moles is it? Can someone please explain how to solve this problem? Thank you!!
    If i have 1.66g of Copper, how many moles is it? Can someone please explain how to solve this problem? Thank you!!
    1 answer · Chemistry · 4 years ago
  • Periodic Table Question?

    Which group(s) in the periodic table contain(s) at least one metal and at least one non metal and at least one metalloid? Not even sure where to begin, thanks for your help!
    Which group(s) in the periodic table contain(s) at least one metal and at least one non metal and at least one metalloid? Not even sure where to begin, thanks for your help!
    1 answer · Chemistry · 4 years ago
  • Local time to standard time? Geography!!?

    This is for my geography class and I don't know how to change local time into standard time. Example: What is the standard time in Port Augusta, Australia when the standard time in London is 1 pm? When local time in London is 1 pm the estimated local time in Augusta is 10:08 pm.
    This is for my geography class and I don't know how to change local time into standard time. Example: What is the standard time in Port Augusta, Australia when the standard time in London is 1 pm? When local time in London is 1 pm the estimated local time in Augusta is 10:08 pm.
    2 answers · Geography · 4 years ago
  • How did Yellow Fever affect people in a cultural way?

    How did Yellow fever culturally affect people? And where? Thanks for your help!
    How did Yellow fever culturally affect people? And where? Thanks for your help!
    1 answer · Infectious Diseases · 4 years ago
  • Math problem? Percents!?

    If Stacey has a 77.9% in a class, and her final test is 25% of her final grade, what is the lowest score Stacey can receive on her final test to be able to pass the class ( 75%) ?
    If Stacey has a 77.9% in a class, and her final test is 25% of her final grade, what is the lowest score Stacey can receive on her final test to be able to pass the class ( 75%) ?
    1 answer · Mathematics · 4 years ago
  • Math Question Again! Probability! Thanks!?

    Kendra buys a bag of cookies that contains 6 chocolate chip cookies, 4 peanut butter cookies, 7 sugar cookies and 6 oatmeal cookies. What is the probability that Kendra reaches in the bag and randomly selects a chocolate chip cookie from the bag, eats it, then reaches back in the bag and randomly selects a peanut butter cookie? I do not... show more
    Kendra buys a bag of cookies that contains 6 chocolate chip cookies, 4 peanut butter cookies, 7 sugar cookies and 6 oatmeal cookies. What is the probability that Kendra reaches in the bag and randomly selects a chocolate chip cookie from the bag, eats it, then reaches back in the bag and randomly selects a peanut butter cookie? I do not understand how to solve this question! Clearly I am not good at probability lol thanks so much for your help!
    2 answers · Mathematics · 4 years ago
  • Math Question! Probability! Thanks!?

    A die is rolled twice. What is the probability of showing a 1 on the first roll and an even number on the second roll? Can anyone explain to me how I am supposed to solve this? I have been trying and can't seem to get it. Thank you all so much!
    A die is rolled twice. What is the probability of showing a 1 on the first roll and an even number on the second roll? Can anyone explain to me how I am supposed to solve this? I have been trying and can't seem to get it. Thank you all so much!
    5 answers · Mathematics · 4 years ago
  • What should i write an argumentative essay about? HELP!!?

    So I am a freshman in college and we have to write a 10 to 15 page essay about a topic of our choice. I can not think of anything to write that much about. It has to be argumentative but not persuasive. Please give me any helpful ideas! Anything is appreciated! Thank you :)
    So I am a freshman in college and we have to write a 10 to 15 page essay about a topic of our choice. I can not think of anything to write that much about. It has to be argumentative but not persuasive. Please give me any helpful ideas! Anything is appreciated! Thank you :)
    2 answers · Homework Help · 5 years ago
  • What should i paint on my bed frame?

    Okay so my bed frame is made of wood. I really want to paint things on it but i have no idea what i should paint! i do not want to paint the entire thing when color i want to paint random stuff on it but im just completely blanking on what to paint. Im not a very good artist so nothing to crazy lol okay thank you so much!!! :) :D oh and btw im a... show more
    Okay so my bed frame is made of wood. I really want to paint things on it but i have no idea what i should paint! i do not want to paint the entire thing when color i want to paint random stuff on it but im just completely blanking on what to paint. Im not a very good artist so nothing to crazy lol okay thank you so much!!! :) :D oh and btw im a 18 year old girl :)
    4 answers · Decorating & Remodeling · 5 years ago
  • Help! How should i wear a long skirt during the winter?

    I know this sounds kinda silly wearing a skirt in winter but its a long skirt so i figure i could wear leggings underneath so im not freezing :) its dark grey and goes from my ribs to my ankles. So what kind of shirt, jacket and shoes should i wear with it?? Thanks everyone :)
    I know this sounds kinda silly wearing a skirt in winter but its a long skirt so i figure i could wear leggings underneath so im not freezing :) its dark grey and goes from my ribs to my ankles. So what kind of shirt, jacket and shoes should i wear with it?? Thanks everyone :)
    5 answers · Fashion & Accessories · 5 years ago