Answers edited by Austte

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• How do you simplify #\frac{20-0}{33-5}#?
  
• How do you divide #\frac { x ^ { - 7} ( y ^ { - 4} z ^ { 1} ) ^ { 2} } { x ^ { - 6} y ^ { 5} z ^ { 8} }#?
  
• How do you combine #3( y + 7) + 11y#?
  
• How do you solve #(4x + 3) - 12= 5- 6( 5x + 2)#?
  
• How do you multiply #\frac { 8} { 9} \times \frac { 3} { 7}#?
  
• Which element is oxidized and which is reduced?
  
• What is ATP and what does it do?
  
• What are the grams of sodium chloride produced when 10.0 g of sodium react with 10.0 g of chlorine gas in the equation #2Na+Cl_2 -> 2NaCl#?
  
• What is the smallest element in the second period?