Answers edited by Jemuel C.

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• What is the mass of 1.5 moles of #CO_2#?
  
• When a car moves uniformly from 42 km/h to68km/h in 30s. find distance travelled by the car?
  
• Question #0c8b4
  
• Question #32ae2
  
• How much pure antifreeze should be added to 3 gallons of a 30 percent antifreeze solution to get 65 percent antifreeze?
  
• 8.00 L of a gas is collected at 60.0°C. What will be its volume upon cooling to 30.0°C?
  
• How much of each type should a farmer mix to obtain 100 liters of fertilizer in a 12% solution if he has fertilizer in 5% and 15% solutions?
  
• Question #26480
  
• How do I find the vertex of #f(x)=x^2-4x+3#?
  
• Question #1ef1d
  
• What is the area of a equilateral triangle with a side of 12?
  
• How do you simplify #sec xcos (frac{\pi}{2} - x )#?