Answer:
copper sulphate reacts with sodium hrydroxide to form a blue preipitate of copper hrydroxide and soduim hrydroxide.
Mg3N2
Mg - 3 times 24.31 g= 72.93 g
N - 2 times 14.01 g= + 28.02 g
Molar Mass= 100.95 g/mol Mg3N2
Number of moles = 0.732
Volume = 0.922
M = n / V
M = 0.732 / 0.922
M = 0.7939 moles
hope this helps!
Its hybridization would be sp because Be only has 2 covalent bonds with Cl
Answer:
-40.0 °C
Explanation:
Change in temperature can be written as 
. The variables are defined below here:
means change in temperature.
means the final temperature value.
means the initial temperature value.
From the question, we know the temperature changes <em>from</em> 65.0 °C <em>to </em>25.0 °C. Therefore, our initial temperature is 65.0 °C and final temperature is 25.0 °C.
Hence:
Therefore, the change in temperature is -40.0 °C.
