Answer the questions about the characteristics of the elements in group 1 (the alkali metals). What happens when the elements in group 1 react with bromine? No reaction a salt is formed with the general formula MBr2 a salt is formed with the general formula MBr What happens when the elements in group 1 react with water? Hydrogen gas is released no reaction What happens when the elements in group 1 react with oxygen? No reaction an oxide is formed with the general formula MO an oxide is formed with the general formula M2O Which group 1 element reacts the most vigorously? Na Rb Li K Cs Which group 1 element exhibits slightly different chemistry from the others? Li Na Cs K Rb
The elements in group form univalent positive ions and element in group 17 form univalent negative ions. Hence, when a group 1 element reacts with a group 17 element, a compound of the sort MX is formed. Hence, when a group 1 element reacts with bromine, a salt is formed with the general formula MBr.
Elements of group 1 are highly electro positive metals. They react with water to form the metal hydroxide and release hydrogen gas. Hence, when group 1 elements react with water, hydrogen gas is released.
A group 1 element forms a univalent positive ion while a group 16 element forms a divalent negative ion. Hence, when a groups 1 element reacts with oxygen, the compound formed must have the general formula M2O.
The reactivity of group 1 metal increases down the group hence Cs is the most reactive group 1 element.
Lithium displays a slightly different chemistry from other group 1 elements because of its small size.
consider the reaction below.
￼ no rx
at 500 k, the reaction is at equilibrium with the following concentrations.
[pci5]= 0.0095 m
[pci3] = 0.020
[ci2] = 0.020 m
what is the equilibrium constant for the given reaction?
metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)