When the reactant is single compound before the reaction and become more than single compound after reaction is called decomposition reaction
Answer: The answer is C
Explanation:the salt fits the definition of a mineral because it's a naturally occurring compound that has a definite composition and a crystalline structure. It has a crystalline structure because of its repeating pattern
Explanation:
Equation for Calcium Hydroxide Dissolving in Water | Ca(OH)2 + H2O
Answer:
Have the same number of electrons in their outer energy levels
Explanation:
Elements in the same group have similar chemical properties because they have the same number of valence electron(s) in their outermost shell.
Chlorine and Iodine have similar chemical properties because they have the same number of valence electron in their outermost shell. This can be seen from their electronic configuration as shown below:
Cl (17) => 1s² 2s²2p⁶ 3s²3p⁵
I (53) => [Kr] 4d¹⁰ 5s²5p⁵
From the above illustration:
Outer shell of Cl (3s²3p⁵) = 2 + 5 = 7 electrons
Outer shell of I (5s²5p⁵) = 2 + 5 = 7 electrons
Since they have the same number of valence electrons, therefore, they will have similar chemical properties.
