Diluting the hydrochloric acid
Adding some distilled water
Decreasing the temperature
Grinding the metal into powder
Increasing the pressure
Correct answer is D
No explanation has been provided for this answer.
Which of the following is not a property of magnesium oxide?
High melting point
Dissolution in polar solvents
Presence of ionic bonds
Possession of crystal lattice
Low binding energy
Correct answer is E
No explanation has been provided for this answer.
definite proportion
conservation of matter
reciprocal proportions
constant composition
Correct answer is B
No explanation has been provided for this answer.
A measure of the degree of disorder in a chemical system is known as the
enthalpy
free energy
activation energy
entrophy
equilibrium
Correct answer is D
No explanation has been provided for this answer.
Catalytic hydrogenation of alkenes produces compounds with the general formula
CnH2n+1 OH
CnH2n+1
CnH2n+2
CnH2n-2
Cx(H2O)y
Correct answer is C
In a hydrogenation reaction, two hydrogen atoms are added across the double bond of an alkene, resulting in a saturated alkane