Answer:
Absorbed
Released
Released
Explanation:
The formation of a cation is an endothermic process because energy must be absorbed in order to remove an electron from an atom.
Similarly, energy is evolved when an electron is added to an atom to form a negative ion.
The formation of an ionic compound is an exothermic process. Since ionic compounds are more stable than the individual ions separated by a distance, the excess energy of the isolated ions is evolved when the ionic compound is formed.
Sodium is a member of the alkali metal family with potassium (K) and Lithium (LI) sodium's big claim to fame is that it's one or two elements in your table salt. when bonded to chlorine (CI) THE two elements make sodium chloride
First, make sure all three measurements have the same unit (I recommend meters because that's what the question calls for)
1.0m=1.0m
5.6cm=0.056m
2.1mm=0.0021m
Then, you just want to multiply the three together to get the total volume.
1.0X0.056X0.0021=0.0001176 or 0.00012, if your teacher wants you to use proper sig figs
Answer:
Mg(ClO₃)₂ ⟶ MgCl₂ + 3O₂
Explanation:
The reaction gives magnesium chloride and oxygen.
The balanced equation is then
Mg(ClO₃)₂ ⟶ MgCl₂ + 3O₂
A is <em>wrong</em>, because it is not balanced (12 O atoms on left and 6 O atoms on right).
C and D are <em>wrong</em> because they have the reactants as products and vice versa.
Answer:
Radium is used to produce Radon
Explanation:
Radon is a gas used to treat cancer (certain types).
