Answers edited by KPaukstis

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• A cheetah was chasing and antelope which is 700m away. How many minutes will it take the cheetah, which is running at a constant speed of 110km/h to reach the antelope that is running at a constant speed of 75km/h?
  
• What is the mass percent of Chlorine in the compound copper (II) chloride tetrahydrate?
  
• How do you solve #p^ { 2} - 12p - 73= 0#?
  
• Can double replacement reactions be redox reactions?
  
• Volume question?
  
• After burning 6.08g of silicon and carbon mixture, 8.4g of solid product was produced. The gaseous product was let through a 100mL 15% NaOH solution (density = 1.1g/cm^3). What was the silicon and carbon composition in grams?