What's the answer? It asked to be 20 characters long so just writing this.
Answer:
analytical balance or the weighing balance
How many grams of Cu would be needed to react with 2.0 mol HNO3?
<span>by the equation </span>
<span>3Cu + 8HNO3 --> 3Cu(NO3)2 + 2NO + 4H2O </span>
<span>2.0 mol HNO3 reacts with 3/8 ths as many moles of Cu = 0.75 moles of Cu </span>
This is an effective way for communication. Others would be calling, texting, emails, or telegraphing.
