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Assessment: (Post-Test) Test 1. Compare and Contrast East Asian Instruments Name of the Country Hornbostel Sachs Classification Counterpart instrument in the Philippines 1. Janggu 2. Biwa 3. Piri 4. Geumungo 5. Sheng 1. Compounds are made up of elements that are chemically bonded by forces 2. Chemically bonded compounds can be classified into ionic or compound 3. lonic compound is formed by complete of electrons from metals to nonmetals, thus ions are formed. 4. Covalent compound is formed when nonmetals their valence electrons with another nonmetal 5 Like elements, compounds have that allow us to identify them by just observing at a given sample of compound 6. At normal atmospheric pressure and temperature, compounds exist only in crystalline solids 7. In general, compounds exist as solid, liquid, or gas at normal atmospheric pressure and temperature 8. In a compound, polarity results in the distribution of electrical charge over the atoms joined by the bond. Polarity of compounds depend on the difference of elements involves. 9. Compounds that involves metal and nonmetal and has an electronegativity difference of greater than results in an ionic compound. 10. Compounds that involves both nonmetals and has electronegativity difference of less than 1.9 but greater than 0.5 results in a covalent. On the other hand, two identical nonmetals always form covalent like oxygen gas (O2) and nitrogen gas (N2). 11.lonic compounds tend to have polarity, while covalent compounds have polarity 12 tend to be hard and brittle while tend to be softer and more flexible. 13 exist in stable crystalline structures. Therefore, they have higher melting and boilin B. Dissolve