There are some rules to silent C:1.) When the C is followed by an E, I or Y, then it'll become asoft C, which means the C will sound like an S. However, in thesoft C case, if the S is followed by a C, then the C becomessilent.2.) When the CQ are together, then the C becomes silent.3.) If the N follows a C at the beginning of the word, then theC become silent.However, there are some exceptions to the silent C rule.Here are some examples of silent C:1.) Scissor2.) Science3.) Ascend4.) Descend5.) Crescent6.) Fascinated7.) Scene8.) Scenery9.) Scenario10.) Scent11.) Acquire12.) Acquit13.) Acquaintance14.) Muscle15.) Cnidarian16.) Discipline17.) Conscious18.) Obscene19.) Cnidoblast