a student in SCH4U titrates a 10.00 mL sample of acetic acid with 0.123 M sodium hydroxide. if it takes an average of 12.54 mL of base to reach the end point, what was the concentration of the acid?

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.