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

Faman39

I have an exam before that i have to figure out old mistake, please help me A scientist is performing an experiment on a powder. Which of the following is a sign that a chemical change has definitely occurred during his experiment? The powder catches on fire. The powder releases bubbles. The powder heats up. The powder breaks apart into smaller particles.

  • one year ago
  • one year ago

  • This Question is Closed
  1. Faman39
    Best Response
    You've already chosen the best response.
    Medals 0

    @Frostbite can you able to help me?

    • one year ago
  2. Faman39
    Best Response
    You've already chosen the best response.
    Medals 0

    please help me guys :(

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

    If I have to be honest. I don't know because it is a very bad question. If it stood to me it could be all of them.

    • one year ago
  4. Faman39
    Best Response
    You've already chosen the best response.
    Medals 0

    Its ok

    • one year ago
  5. Faman39
    Best Response
    You've already chosen the best response.
    Medals 0

    i am not getting anyone for helps in this group, thats y, i was confused and had to call you

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

    1) strong exothermic 2) relase of a gas 3) exothermic 4) a break in the molecule. If you can follow my drift.

    • one year ago
  7. Faman39
    Best Response
    You've already chosen the best response.
    Medals 0

    third one ? i guess

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

    could be all as you see.

    • one year ago
  9. Faman39
    Best Response
    You've already chosen the best response.
    Medals 0

    thank you so much coming for helping me out @Frostbite

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

    Not much help unfortunately, but I hope you0 figure something out. :/

    • one year ago
  11. Faman39
    Best Response
    You've already chosen the best response.
    Medals 0

    i guess heat

    • 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.