Answer: produce hydroxide ions
Explanation:
Arrhenius acids are substances which dissociate in water to give hydrogen ions.
For example:
is an Arrhenius acid.

Arrhenius bases are substances which dissociate in water to give hydroxide ions.
For example:
is an Arrhenius base.

An Arrhenius base is best defined as produce hydroxide ions
Answer:
Single displacement (Substitution)
Explanation:
Molar mass NaOH =23+16+1=40 g/mol
<span> 0.100 M= 0.100 mol/L
</span>500 ml=0.500 L
0.500L*0.100 mol/L=0.0500 mol NaOH we need to prepare 500 ml solution
0.0500 mol NaOH*40g/1mol=2 g NaOH we need to prepare 500 ml solution
we need 2 g NaOH, dissolve it in small amount of water, and dilute it with water up to 500 mL
B. Infrared light I'm pretty sure correct me if I am wrong hope this helped