Physical and Chemical Properties Peter Jeschofnig, Ph.D. Version 42-0188-00-01

Physical and Chemical Properties

Peter Jeschofnig, Ph.D.

Version 42-0188-00-01

Lab Report Assistant

This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab

Reports by providing this information in an editable file which can be sent to an instructor.

Solubility or Reaction |

SubstanceName | Color | Odor | Effectof Heat | ColdH2O | HotH2O | LitmusTest | DiluteHCl | DiluteNaOH |

Mg | Silver | | White gas | Non-soluble | Non-soluble gas formation | Base | Dissolves | No reaction |

Cu | copper | | Blackens | Non-soluble | Non-soluble | Base | No reaction | No reaction |

Zn | grey | | yellows | No reaction | No reaction | base | Dissolves | No reaction |

MgO | Silver | | Reddens | dilutes | No reaction | base | Dissolves | No reaction |

CuCO3 | Green | | Blackens | insoluble | No reaction | acid | Dissolves | No reaction |

Cu(NO3)2 | Blue | | Turns Green | Soluble | soluble | base | Turns green | No reaction |

NaCl | White | | No reaction | Soluble | soluble | acid | Dissolves | Turns blue |

Questions

Did you observe any chemical changes in this experiment?

Yes

What evidence did you use to decide that something was a chemical change?

When the properties rather than the form was altered

Give at least two examples of chemical changes you observed.

Dissolving and changes in color

Classify the following properties of sodium metal as physical or chemical:...