Answers edited by Callum S.

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• What are coefficients?
  
• What is the name of the ninth planet in our solar system?
  
• What is Hubble's Law?
  
• What stops beta decay?
  
• What are all types of elementary particles ?
  
• How do you find #int sec^2x#?
  
• How did the atom model change over time?
  
• Can a a compound with a lone pair of electrons such as #NH_3# be a nucleophile?
  
• Do nuclear reactions create new elements?
  
• What is the net ionic equation of the reaction of MgSO4 with Pb(NO3)2?
  
• What is the difference between a perihelion and a aphelion?
  
• What is the mass number of zinc?
  
• What is a nuclear reaction?
  
• Twice Beyonce's age plus Jay-Z's age is 101. Beyonce's age plus 3 times Jay-Z's age is 413. How old is Beyonce?
  
• How do you find the equation of the line which goes through the point (2,-1) and is tangent to the line given by the equation #2x-y=1#?
  
• What is acetylcholine classified as?
  
• What is the measure of each exterior angle in a regular dodecahedron?
  
• What is the wavefunction formulation?
  
• Question #72737
  
• What nuclear reaction takes place in the sun?