Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.

(a) How will she find the nature of the gas ?
(b) Write down word equations of all the reactions taking place in this process.
Science - Main Course Book
Chapter 4. Materials: Metals and Non-metals


The gas thus evolved is CO2. 
To find the nature of gas evolved, 
1. CO2 has no color or smell.
2. In the presence of CO2 the burning splint will stop burning.
3. CO2 will turn moist litmus paper from blue to red, and moist universal indicator paper to yellow.
Specific tests:
1.CO2 will tun lime water milky.
Lime water is the solution of calcium hydroxide.

Calcium Hydroxide + Carbon Dioxide= Calcium carbonate+ water
Ca(OH)(aq)           +    CO2(g)         =CaCO3(s)               +H2O(l)
0 0 0
mark as brainliest plzzzzzzzzzzzzz
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts