Answer: 1.00 M
Explanation: The problem can be solved using the formula of dilution which is the product of Molarity and volume M1V1= M2V2.
Derive for M2, so the formula will be M2 = M1V1 / M2
M2 = 2.00 M ( 0.400 L ) / 0.800 L
= 1.00 M
Answer:
1.00 M
Explanation:
Got It Correct
(2) a negative ion
(3) an atom in an excited state
(4) an atom in the ground state
Answer;
-(3) an atom in an excited state
Explanation;
-An electron in a sodium atom gains enough energy to move from the second shell to the third shell. The sodium atom becomes an atom in an excited state.
-Ground state is the lowest allowable energy state of an atom. When electrons are subjected to stimuli like heat, light or electricity an electron may jump to a higher energy level, which is the excited state. Excitation is the elevation in energy level above the baseline energy state.
HCN
Answer:
HCN - Hydrogen cyanide The conjugate acid of CN- is HCN. HCN stands for hydrogen cyanide. The conjugate acids are a combination of a strong acid and a low base.