Answer:
a semi-crystalline structure is formed, which holds the water molecules apart, making ice less dense than liquid water, such that it floats. This means that it insulates the water beneath, allowing organisms in the liquid water to survive. Cohesion is the tendency of molecules within a substance to ‘ stick together
explanation:
An element is stable with 8 electrons in its outer shell.
Answer:
Excess reactant amount 15.1 moles
Explanation:
3 Cu + 8 HNO₃ → 3 Cu(NO₃)₂ + 2 NO +4 H₂O
Using mole ratio method we find limiting reagent and excess reagent
For,
Since, Cu is limiting reagent and HNO₃ excess reagent
According to reaction,
3 moles of Cu react with 8 moles of HNO₃
12.4 moles of Cu react with = 33.06 moles of HNO₃
So remaining amount of excess HNO₃ = 48.2 - 33.06
= 15.1 moles
Answer:
The differemt isotopes that differ in atomic mass
Explanation: