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  • Fish experts please?

    Hello I’m wondering how many fish I can comfortably fit in my tank. My tank is a 37 gallon tank. 

    So far I have a lyretail balloon molly, an angelfish, a tetra glofish, a shark glofish, a kissing gourami, and a sailfin pleco.

    I want to know how many more lyretail balloon mollies I can comfortably fit in this tank?

    I have a small castle, a clam that blows bubbles and 2 small plants in the tank as well that take up some room.

    2 AnswersFish3 months ago
  • Stoichiometry help?

    I don't know how to find the actual yield in order to calculate the percent yield for this problem.

    When MoO3 and Zn are heated together they react:

    3 Zn (s) + 2 MoO3 (s) -----> Mo2O3 (s) + 3 ZnO (s)

    What is the percent yield of ZnO formed when 20.0 g of MoO3 is reacted with 10.0 g of Zn? (Find limiting reagent, then theoretical yield, then percent yield)

    1 AnswerChemistry5 years ago
  • Does Hulu Plus have the current episodes of season 3 of Once Upon a Time?

    I'm wondering if anyone knows if Hulu Plus has the current season, season 3 episodes 1-13 of the tv show Once Upon a Time? I want to know before I sign up for Hulu Plus but it doesn't let me see if they have it. Netflix doesn't have it because they are currently still on season 3 and Netflix only puts up seasons once they are completely finished. So I was wondering if Hulu Plus puts up full episodes of current seasons that aren't finished yet? Thanks!

  • I feel bad I'm not a virgin?

    I'm not a virgin and my current boyfriend knows this but he is still a virgin and he says he doesn't care but I still feel really bad that I'm not and he is. I know he really likes me and he said it doesn't bother him but I sometimes I just feel worthless because I lost it. Where I live guys prefer if you are, so I just feel bad that I'm not even though I know I can't change it. Part of the reason I feel this way is because my ex boyfriend used to not like that I wasn't a virgin and it really bothered him so I just feel like no guy will want me now. But luckily I found my current boyfriend who loves me and says he doesn't care, even though he's a virgin. So is it normal to think this way and any advice you can give me please?

    11 AnswersSingles & Dating7 years ago
  • Problem with intercourse (older people answer only)?

    Ok so me and my boyfriend had sex for the first time the other day and then 2 more times after that and I don't know why but it hurts really bad like a sharp stabbing pain if he goes too far. He can only go about halfway and then I'll start to feel the sharp pain. It's also hard because we've tried different positions but the same thing happens if he goes to far in any position. Sideways doesn't hurt as much but still if he accidently goes to far it hurts soooo bad. He stops right away though he's not a jerk about it because he doesn't wanna hurt me but I don't know why this keeps happening? I don't know what to do about this, is it going to be like this the rest of my life? I want my boyfriend to be able to go farther than halfway but it's too painful so I'm not sure what to do. Any suggestions or has anyone else had this problem? Thanks

    8 AnswersSingles & Dating8 years ago
  • Guys Please Help Me Out!?

    So my boyfriend and I have been together 2 years and we always used to do things and he always used to want to do it more than me but now recently for the past few months things have changed and I always want him more :/

    He's always saying stuff to me like "can you just chill, why do you always have to talk about doing stuff" and "why do you always want to do stuff when you see me" and it's driving me crazy that he's less into it now. I know people can sometimes have different sex drives, but we both used to always want to, but now he wants to less and less.

    Soooo, what do you think? Like I would think guys would love if their girlfriend was always asking them to do that lol should I just keep waiting maybe and hopefully it will get better? idk.... Or maybe hold off and don't talk about it anymore until he brings it up?

    4 AnswersSingles & Dating9 years ago
  • Boyfriend says that I always want to....?

    Ok so I've been with my boyfriend for 2 years and we're both legal age just incase anyone is wondering. We used to do stuff all the time when we first started dating and it used to be great. He used to always be the one that was asking me if we could do things and he was always in the mood. I still was, but not as much as him since he's a guy haha. But lately the past few months things have turned the other way. I'm always wanting him and he's not asking me. I'm always trying to talk to him about doing things and wanting to do stuff everytime we see each other. But, he says things like "you always wanna do things can't we just chill" and "why do you always want to do stuff when you see me" and things like that. It's driving me crazy because he doesn't want it when I'm like throwing myself at him and I'm not sure why because it used to be him always wanting it and me not as much. I don't think he's cheating because I usually always know where he's at and he doesn't really go out or party or anything.

    (Oh and also he's gotten a lot lazier with doing things too lol. I've gotten better and he's gotten lazier.)

    So any ideas or any sugestions/comments or anything I can do??

    4 AnswersSingles & Dating9 years ago
  • Guys only answer please ;]?

    What's your favorite color for girls to wear for bra/panties and lingerie? And any preference on what type it is? lacy, silky, boy shorts, thong etc..........?

    5 AnswersSingles & Dating9 years ago
  • Guys/ girls please help :]?

    If you're a guy what would you think or like?

    Girls can answer too :]

    So me and my boyfriend have been together 2 years and lately our conversations have been getting boring and we talk about the same stuff like how was your day etc.

    I don't want our relationship to get boring so I need like fun date night things we can do or places to go. Also any interesting things to talk about on the phone because we already know everything about each other so I need interesting things or topics to talk about. I don't want my boyfriend to get bored or anything, we both love each other a lot but we need stuff to make our relationship better and fun. any suggestions?? thanks for your help!!

    2 AnswersSingles & Dating9 years ago
  • What can I do to keep our relationship interesting?

    So me and my boyfriend have been together 2 years and I don't want our relationship to get boring so I need like fun date night things we can do or places to go. Also any interesting things to talk about on the phone because we already know everything about each other so I need interesting things or topics to talk about :] any suggestions? thanks!

    1 AnswerSingles & Dating9 years ago
  • What features do all of the resonance forms of a molecule or ion have in common?

    What features do all of the resonance forms of a molecule or ion have in common?

    (More than one answer/multiple answers)

    a. arrangement of atoms

    b. arrangement of electrons

    c. atoms present

    d. net charge on the molecule or ion

    e. formal charge on each atom

    f. number of electrons

    g. none of these are common between resonance forms

    2 AnswersChemistry9 years ago
  • Henry's Law Constant Problem?

    The solubility of O2 in water is 6.5 mg/L at an atmospheric pressure of 1 atm and temperature of 40 degrees celcius. Calculate the Henry's Law constant of O2 at 40 degrees celcius. (Answer is in units of mol/L x atm)

    2 AnswersChemistry9 years ago
  • Which of the binary compounds formed by the following pairs of elements...?

    1. Which of the binary compounds formed by the following pairs of elements contain polar covalent bonds? (can have more than one answer)

    C and Fe

    Na and F

    Al and Cl

    H and O

    2. Which of the binary compounds formed by the following pairs of elements are considered ionic compounds? (can have more than one answer)

    C and Fe

    Na and F

    Al and Cl

    H and O

    1 AnswerChemistry9 years ago
  • What are the molecular geometries?

    Match the following general molecular formulas below with its molecular geometry:

    1. AB2 with no lone pairs on A

    2. AB2 with two lone pairs on A

    3. AB4 with one lone pair on A

    4. AB5 with no lone pairs on A

    5. AB2 with one lone pair on A

    6. AB4 with two lone pairs on A

    a. bent with 120 degrees bond angles

    b. bent with 109.5 degrees bond angles

    c. linear with 180 degrees bond angles

    d. seesaw with bond angles of 90, 120 and 180 degrees

    e. square planar with 90 and 180 degrees bond angles

    f. trigonal bipyramidal with 90, 120 and 180 bond angles

    1 AnswerChemistry9 years ago
  • Chemistry Heat Capacity Question?

    The standard enthalpy of evaporation of CF2Cl2 is 17.4 kJ/mol, compared with deltaH of vap= 41 kJ/mol for liquid water. How many grams of liquid CF2Cl2 are needed to cool 128.4 g of water from 40.9 to 26.9 degrees C? The specific heat of water is 4.184 J/(g * degrees C).

    Hints:

    1. CF2Cl2 is evaporated to cool 128.4 g of water 14.0 degrees C

    2. The heat lost by water is given by:

    q(water)= m(cs)deltaT

    where m=mass, cs = specific heat of water, and deltaT= the difference in temperature

    3. The heat gained by the CF2Cl2 to evaporate is:

    q(vap.)=n(deltaH of vap.)

    where n=moles

    4. We do not need to use the deltaH of vap. of water to solve this problem, only the deltaH of vap. of CF2Cl2

    5. Incorrect answers: -523 g and -5.23x10^7 g

    2 AnswersChemistry9 years ago
  • Chemistry problem need help?

    Chlorofluorocarbons (CFCs) such as CF2Cl2 are refrigerants whose use has been phased out because of their destructive effect on Earth's ozone layer.

    The standard enthalpy of evaporation of CF2Cl2 is 17.4 kJ/mol, compared with deltaH of vap= 41 kJ/mol for liquid water. How many grams of liquid CF2Cl2 are needed to cool 128.4 g of water from 40.9 to 26.9 degrees C? The specific heat of water is 4.184 J/(g * degrees C).

    2 AnswersChemistry9 years ago
  • Enthalpy of Combustion Problem?

    Calculate the change in enthalpy for the combustion of a gas that releases 225.0 kJ of energy to its surroundings and does 36.5 kJ of work on its surroundings. (Answer units is in kJ)

    2 AnswersChemistry9 years ago
  • Chemistry Help Please!?

    If 145 grams of water at 23 degrees C absorbs 285 kJ of heat from a mountain climber's stove at an elevation where the boiling point of water is 91 degrees C, is this amount of energy sufficient to heat the water to its boiling point, yes or no? And how many kJ are required to boil the water?

    1 AnswerChemistry9 years ago
  • Find an equation of the tangent line to the curve?

    Find an equation of the tangent line to the curve

    y=xe^x/(x^2+1)

    at the point (1, e/2)

    1 AnswerMathematics9 years ago
  • Differentiate Calculus problem?

    Let f and g be differentiable functions. Find dy/dx if:

    y=((e^x+2x^3)f(x)+g(x)cosx)/(x^2+2x+10)

    1 AnswerMathematics9 years ago