Answer: PNS, CNS is
Periferal nervous system. Central nervous system.
Explanation:
LiCl
because Li loses 1 electron ==> Li+
and Cl gains 1 electron ==> Cl-
Li+ Cl-
we use the criss cross rule
===> LiCl
Answer: 10% (v/v).
Explanation:
V - unit is litre
m/m - by mass concentration
m/v - unit of density
v/v - concentration by volume
Answer:
Equal to 0.253 mol.
Explanation:
Hello,
In this case, since hydrogen and water are in a 2:2 molar relationship, the number of moles of hydrogen necessary to produce 0.253 mol of water will be also 0.253 mol as shown on the following stoichiometric factor:
Therefore, The number of moles of hydrogen that is needed to produce 0.253 mol of water is equal to 0.253 mol.
Best regards.
From the Charle's law the volume of a fixed mass of a gas is directly proportional to absolute temperature at constant pressure. Therefore, V/T is a constant, and hence, for two gases V1/T1 =V2/T2
hence; temperature changes from (273+27) K to (273+127) K
9/ 300 = V2/400
V2= 12 L
Therefore, the final volume is 12 liters .
