3. Anna received a fancy necklace as a gift during her 7th birthday from her mother. Within two months, her mother noticed that the metal pendant has changed color and turned rusty. Anna's mother wanted to get rid of the rust from the pendant and has recently viewed from youtube that vinegar can quickly remove rust from metal chains and screws. Unfortunately, she only has calamansi on their kitchen. She wondered if she can use calamansi extract instead.
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i hope this helps you.
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