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red litmus paper was used to test toothpaste and it turns blue​.Explain what this tells about the toothpaste
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red litmus paper was used to test toothpaste and it turns blue​.Explain what this tells about the toothpaste

User Touhid Udoy
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It shows that the toothpaste contains chlorine. Because chlorine is present when it turns the litmus paper blue
User ArtoAle
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