When it comes to chemical reactions there are some ways that you can identify the changes the elements to check for physical changes or chemical change. When it comes to chemical equations there are some people who find it hard...
Questions: 7 | Attempts: 11072 | Last updated: Dec 17, 2020
___ CH4 + ___O2 --> ___CO2 + ___H2O
This quiz will be your sixth formal assessment. good luck.
Questions: 10 | Attempts: 857 | Last updated: Jan 10, 2013
Ca(OH)2 + HCl ---> CaCl2+ H2OWhat type of reaction is this?
Questions: 10 | Attempts: 272 | Last updated: Dec 6, 2019