Of the alkaline earth metals, which two elements are the least reactive?
What will be an ideal response?
Question 2
According to the Arrhenius concept, an acid is a substance that ________.
A) is capable of donating one or more H+
B) causes an increase in the concentration of H+ in aqueous solutions
C) can accept a pair of electrons to form a coordinate covalent bond
D) reacts with the solvent to form the cation formed by autoionization of that solvent
E) tastes bitter
Question 3
The net ionic equation for the reaction between aqueous nitric acid and aqueous sodium hydroxide is ________.
A) H+ (aq) + HNO3 (aq) + 2OH- (aq) 2H2O (l) + NO3- (aq)
B) HNO3 (aq) + NaOH (aq) NaNO3 (aq) + H2O (l)
C) H+ (aq) + OH- (aq) H2O (l)
D) HNO3 (aq) + OH- (aq) NO3- (aq) + H2O (l)
E) H+ (aq) + Na+ (aq) + OH- (aq) H2O (l) + Na+ (aq)
Question 4
The element chlorine is in a group known as the _______.
A) transition metals
B) noble gases
C) alkali metals
D) alkaline earth metals
E) halogens
Annual net primary productivity on Earth.
From space earth shows itself as a planet covered mostly by water.
Earth’s Spheres
Water-Reactive Salts
The Distribution of Water on Earth
A very light ideal spring stretches by when it is used to hang a 135-N object. What is the ...