1. Define mixtures 2. What are the various types of mixtures?
3. What is a substance?
4. Differentiate between homogeneous and heterogeneous mixture.
5. What are solutions? Give examples and list their properties.
6. Define solute and solvent. Support your answer with an example.
7. What are suspensions? Give examples and list their properties.
8. Define Tyndall effect.​

Balance this equation: n2 + h2 > nh3, write the following molar ratios: n2 / n2 / nh3 h2 /

Bohr's model could only explain the spectra of which type of atoms? single atoms with one electron single atoms with more than one electron bonded atoms with one electron bonded atoms with more than one electron

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.