Only these values can exist... N=? L=0 to N-1 M=+ to - L S=+ or - 1/2
Answer:
The answer is 1.66
1 mole is equal to 6.0221415E+23 atom. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between
Sodium Na is a metal that belong to the alkali metal with low density and soft
Answer:
b) 2.0 mol
Explanation:
Given data:
Number of moles of Ca needed = ?
Number of moles of water present = 4.0 mol
Solution:
Chemical equation:
Ca + 2H₂O → Ca(OH)₂ + H₂
now we will compare the moles of Ca and H₂O .
H₂O : Ca
2 : 1
4.0 : 1/2×4.0 = 2.0 mol
Thus, 2 moles of Ca are needed.
<span>The answer to this question would be: B.They are different.
A compound will have different characteristics from their element. </span>The interaction of different elements in a compound makes it so. They might have similar or opposite characteristic but it didn't always happen so those answers are not best.