1.

Fill in the blanks. (a) In a compound the ………… do not retain their properties. (b) In a ………… properties of constituents are retained. (c) The chemical symbol of calcium is ………… . (d) The molecular formula for carbon dioxide is ………… . (e) The compound sodium chloride is made from the combination of the elements ………… and ………… . (f) In the compounds H2O, NaOH, H2O2, ………… are the common elements.

Answer»

Fill in the blanks.



(a) In a compound the ………… do not retain their properties.



(b) In a ………… properties of constituents are retained.



(c) The chemical symbol of calcium is ………… .



(d) The molecular formula for carbon dioxide is ………… .



(e) The compound sodium chloride is made from the combination of the elements ………… and ………… .



(f) In the compounds H2O, NaOH, H2O2, ………… are the common elements.





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