Answer:
HI& HNO3= strong acid
H2CO3 &HF= weak acid
LiOH & Ba(OH)2= strong base
CH3NH2= weak base
NH4Cl = weak acid solution
Na3PO4 = weak base solution
Explanation:
HI& HNO3= strong acid because they can dissociate completely producing free Oxonium ions
H2CO3 &HF= weak acid because there dissociate partly in Solution
LiOH & Ba(OH)2= strong base because LiOH is a group one alkali which dissociate completely and Ba(OH)2 a group 2 alkali which dissociate completely as well
CH3NH2= weak base because in solution it dissociates partly forming NH4+ ion
NH4Cl = weak acid solution because it is a salt of strong acid and weak base
Na3PO4 = weak base solution
Because it's a salt of strong base and weak acid
Answer:
313.5cm²
Explanation:
Given parameters:
Weight of model = 105pounds
Pressure applied on the scale by model = 2.16pounds per square inch
Unknown:
Area of her feet in cm² = ?
Solution:
Pressure is the force per unit area;
Pressure =
Input the parameters and solve;
2.16 = ![\frac{105}{Area}](https://tex.z-dn.net/?f=%5Cfrac%7B105%7D%7BArea%7D)
105 = 2.16 x Area
Area =
= 48.6in²
We need now to convert the in² to cm²
1in² = 6.45cm²
48.6in² = 48.6 x 6.45 = 313.5cm²
Answer:
Summary. Water molecules are polar, so they form hydrogen bonds. This gives water unique properties, such as a relatively high boiling point, high specific heat, cohesion, adhesion and density.
Explanation:
Cl2=3.17g/L
Ne=.901g/L
CO2=1.96g/l
therefore Cl2 is the densest gas under the given conditions.