Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Cutiepo0

Which of the following chemical equations adhere to the law of conservation of mass? Copy and balance those that do not. (a) H2(g) + O2(g) → H2O(g) (b) 2 NaOH(aq) + Cu(ClO3)2(aq) → Cu(OH)2(s) + 2 NaClO3(aq) (c) Pb(s) + AgNO3(aq) → Ag(s) + Pb(NO3)2(aq) (d) 2 NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(l)

  • one year ago
  • one year ago

  • This Question is Closed
  1. Silent_Sorrow
    Best Response
    You've already chosen the best response.
    Medals 1

    2H2(g) + O2(g) → 2H20(g) B is balanced Pb(s) + 2AgNO3(aq) → 2Ag(s) + Pb(NO3)2(aq) D is also balanced

    • one year ago
  2. Cutiepo0
    Best Response
    You've already chosen the best response.
    Medals 0

    thank you! for 2NaOH, are there 2 Na and 2 OH ?

    • one year ago
  3. Silent_Sorrow
    Best Response
    You've already chosen the best response.
    Medals 1

    Yupp

    • one year ago
  4. Silent_Sorrow
    Best Response
    You've already chosen the best response.
    Medals 1

    Numbers before a compound indicates amount of the whole compound, numbers after a molecule indicate the number of those molecules per number of the compound

    • one year ago
  5. Cutiepo0
    Best Response
    You've already chosen the best response.
    Medals 0

    okay, thanks a lot!

    • one year ago
    • Attachments:

See more questions >>>

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.