Answer: Option (c) is the correct answer.
Explanation:
HF is a weak acid and not a strong acid. This is because fluorine is a highly electronegative atom and when it combines with a hydrogen atom then it will attract the valence electron of hydrogen atom more towards itself.
As a result, it will not dissociates easily to give hydrogen ion. Hence, it acts as a weak acid.
A neutralization reaction is defined as a reaction in which an acid reacts with a base to give salt and water. For example, 
It is true that, spectator ions "appear in the total ionic equation for a reaction, but not in the net ionic equation".
Titration is defined as a process in which concentration of an unknown solution is determined using a solution of known concentration.
Thus, we can conclude that the statement HF, HCl, and HNO3 are all examples of strong acids, is false.
Answer:
H2O and CO
Explanation:
they both form covalent bonds because none both of the elements are non-metal. Mgo and NaF both have metals in them so they would form ionic bonds.
Covalent bonds, two non-metal
Ionic bonds, a metal and a non-metal
Answer:
Explanation:
A. Na = 23 g/m Cl = 35.5 g/m NaCl = 58.5 g/m
10g / 58.5 g/m = .17 mole
.17 mole/ 2.0 L = 0.086 m/L = 0.086 Molar
B. 342 g/m 52.5/342 =0.15 mole 0.15 mole/1.0 L = 0.15 Molar
C. Al2(SO4)3== 342 g/m 120/342 = 0.35 mole 0.35 m/10.L 0.035 Molar
D caffeine = 194 g/m 1.75/ 194 = 0.009 mole 0.009/0.100 L 0.09 Molar
Answer:
THE PRESSURE EXERTED BY THE GAS IS THEREFORE 2.88 atm.
Explanation:
Boyle's law states that at constant temperature, the volume of a given mass of gas is inversely proportional to the pressure of the gas.
Mathematically, P1 V1 = P2 V2
Write out the values of the variables given:
P1 = 2.4 atm
V1 = 1.8 L
V2 = 1.5 L
P2 = unknown
Re-arranging the variables by making P2 the subject of the equation, we have:
P2 = P1 V1 / V2
P2 = 2.4 * 1.8 / 1.5
P2 = 2.9=88 atm
Hence, the pressure exerted by the gas is therefore 2.88 atm