Questions asked by Meowing Cat

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• What does insolube mean? Is it: 1. A solid substance that won't dissolve in a liquid. 2. Any substance that does not disolve
  
• What do you write in a test (when ordering fractions) and two have the exact same value eg, #1/2 and 2/4#?
  
• Is this correct? Zinc + Hydrocloric Acid = Hydrogen + Zinc chlorite (salt).
  
• What are you felt behind with when you burn magnesium?
  
• When acid and calcium carbonate are added together in a tube, and the CO2 is collected in a tube of limewater, what are all the signs that a chemical has taken place?
  
• Give a detailed yet easy to understand explanation about what DNA is and its job (factors etc.) Also, please include chromosomes and genes. A better understanding?
  
• What are the four bases of DNA?
  
• What is a complement in maths?