What is a chemical reaction?
A) when one or more new compounds are formed by rearranging atoms
B) when a new element is formed by rearranging nucleons
C) when two solids mix together to form a heterogeneous mixture
D) when two liquids mix to form a homogeneous mixture
E) when a liquid undergoes a phase change and produces a solid
Correct Answer:
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Q6: Q7: Which of the following is a correctly Q8: Q9: Balance these equations. _ Q10: A friend argues that if mass Q12: For the following balanced equation,which has the Q13: Which equations are balanced? Q14: What coefficients balance the following equation? Q15: Given the following generic chemical reaction,which is Q16: For the following balanced reaction,which of the
a)Mg (s)+
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