Answer:
Na(OH)²
Explanation:
We look for the charges in the periodic table
Answer:
A ability to decompose
B reactivity
Explanation:
Chemical properties are those properties that tell us about what a substance can do as regards to whether or not the substance reacts with other substances.
Examples are flammability, rusting of iron, precipitation, decomposition of water by an electric current.
The ability to decompose and reactivity are chemical properties of a substance.
- Physical properties tells us everything about what a substance is when no change is occurring to its constituents.
- Examples are state of matter, color, odor, taste, texture, hardness e.t.c
The answer to your question is full
Answer:
Molecular mass is the amount of mass associated with a molecule. It is also called as molecular weight. It can be calculated by adding the mass of each atom multiplied by the number of atoms of the element present in the molecule. For example, water is made up of 2 hydrogen atoms and 1 oxygen atom.
Explanation:
Complete Question
49.9 ml of a 0.00292 m stock solution of a certain dye is diluted to 1.00 L. the diluted solution has an absorbance of 0.600. what is the molar absorptivity coefficient of the dye
Answer:
The value is 
Explanation:
From the question we are told that
The volume of the stock solution is 
The concentration of the stock solution is 
The volume of the diluted solution is 
The absorbance is 
Generally the from the titration equation we have that
=> 
=> 
Generally from Beer's law we have that
=> 
Here l is the length who value is 1 cm because the unit of molar absorptivity coefficient of the dye is 
So
=>
