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serg [7]
2 years ago
15

2. Use the graph below to answer the following questions.

Chemistry
1 answer:
BlackZzzverrR [31]2 years ago
6 0

Answer:

The graph represents an endothermic reaction.

The products have more energy than the reactants.

80kJ

160kJ

80kJ

160kJ

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Complete Question

The complete question is shown on the first uploaded image  

Answer:

The density is  \rho =  8.21479 g/cm^3

Explanation:

From the question we are told that

         the lattice constant is  a =  0.295 nm = 0.295*10^{-9} = 0.295*10^{-7} cm

The density of Copper (\beta) is mathematically represented as

     \rho  =  \frac{ZM}{a^3N_A}

Where  Z is the number of units in a unit cell and  for BCC crystals  Z =2

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          N_A is the Avogadro's constant with a value of  N_A =  6.022*10^{23}

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