Among these Options the Option B contains a Balance chemical equation. Equation is as follow,
<span>2Na </span>₍s₎<span> + MgF</span>₂<span> → 2NaF </span>₍s₎ <span> + Mg </span>₍s₎
There are two Na atoms (or moles) at right hand side and two at left hand side.
There are two F atoms (or moles) at right hand side and two at left hand side.
There is one Mg atom (or mole) at right hand side and one at left hand side.
50.00ml*(10^-3L/ml)*(3.91moles/L) = 0.196 mol
Explanation:
Young babies need a lot of calcium because calcium makes bones strong ,it protects them against bone loss in future,and it also prevents them from a disease called rickets.
Answer:
Option a (100 kPa) is the appropriate option.
Explanation:
The given value is:
Original pressure,
P₁ = 50 kPa
Let the new pressure be "x".
Now,
⇒
On substituting the values, we get
⇒
On applying cross-multiplication, we get
⇒
⇒
Thus the answer above is the right one.