A compound X is used for disinfecting drinking water supply prepared from slaked lime. (2) a. Identify the compound X b. Write the chemical equation for the preparation of compound X

Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous