Chemistry

I don't understand how you know what state designation things are in a chemical equation. For example this is given:
2 (NH4)3PO4 (__) + 3 Ba(NO3)2 ---> Ba3(PO4)2 (__) + 6 NH4NO3 (__)

How do you just know what to put for their state or phase designation?

  1. 0
  2. 0
  3. 9
asked by Kristin
  1. You have to be given something. If the original reactants were in solution in water, then the first two are (aq). But is Barium phosphate soluble in water (NO), so it is (s). Ammonium nitrate is soluble, so it is (aq)

    1. 0
    2. 0
    posted by Anonymous

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science

    I am learning how to balance a chemical equation but I don't understand it at all. I read that in order to balance the equation, you need to find the number of atoms. How do I do that? How do you balance a chemical equation?

    asked by Michael on February 17, 2012
  2. Chemical Equations

    Starting with nitrogen and hydrogen, millions of kilograms of ammonia are produced every year for use as a fertilizer. Use this info to answer the next 3 questions. Communicate the balanced chemical equation using molecular

    asked by Fizzylicous on December 3, 2011
  3. chemistry

    How do these things shift the direction of a chemical reaction?: -adding/removing reactants -adding/removing products -adding/removing energy Thanks! It depends upon the equation and whether the reaction is exothermic or

    asked by Mira on March 16, 2007
  4. Chemistry

    I'm currently learning about balancing chemical equation but I don't understand the equation below. 2FE + 3CL(subscript 2) -> 2FECL(subscript 3) I understand 2FE balance out but how did 3CL2 became CL3? Thanks

    asked by Shadow on December 17, 2012
  5. chemistry

    What mass of sodium hydroxide pellets must be poured into a waste drum containing 20.0 L o 3.0 mol/L sulphuric acid to completely neutralize the waste acid solution? Write a balanced chemical equation for this reaction. okay, so

    asked by julie on December 16, 2014
  6. science

    i need help with a packet that im struggling with my questions are write the total number of atoms present for the following questions: a. 4SO2 now i tried and got 8O'S and 1S b. 8O2 i tried and got 16 all together c. 3Al2(SO4)3 i

    asked by maddy on January 12, 2015
  7. Algebra

    I have a few more questions that I either need help with or just need checking. Is the algebraic expression a polynomial? if it is write the polynomial in standard form, 1. 6x-9+8x^2 I got Yes; 8x^2+6x-9 Perform the indicated

    asked by Soly on August 14, 2007
  8. Geology

    I need help with a radiometric dating equation. I am trying to determine the age of a sample that has a 40AR/40K ratio of 4.5. I understand the equation of D=Do+N(e^.693t-1). I understand I would set Do to zero. But what is D? I

    asked by Aracely on December 4, 2008
  9. about Engineering

    Electronic and Communication Engineering is mainly Mathematical analysis, implemented in practical circuits. You have to understand higher forms of math, and think in those terms. You have to understand the imperfect models used

    asked by bobpursley on May 24, 2007
  10. chemistry

    what is the chemical & word equation of sulfur dioxide + water i don't understand this, can someone please explain to me how to do this!!?

    asked by ann on March 25, 2014

More Similar Questions