Which grade would u like to begin with? I can probably help with grade 9 Intro to Chemistry and Grade 10 Naming elements and compounds. That's all
Balanced equation(That should be NaClO_3)

Remember that it's a ionic equation not general equation
So
We have to balance it accordingly
The answer to this question would be: 2.36 mol
To answer this question, you need to know the molecular weight of copper. Molecular weight determines how much the weight of 1 mol of a molecule has. Copper molecular weight about 63.5g/mol. Then, the amount of mol in 150g copper should be: 150g / (63.5g/mol)= 2.36 mol
The answer is "Liquid".
Hope I could help you!
Have a great day ;)