a team of students is performing an experimen...
a team of students is performing an experiment to determine how the speed of a reaction between hcl and na₂co₃ changes with temperature. which aspect of the experiment does not have to be kept constant? a the starting temperature b the concentration of the hcl c the total volume of the reactants d the concentration of na₂co₃
Answer
# Explanation:
## Step1: Understand the experiment purpose
The experiment is to study the effect of temperature on reaction speed. So temperature (starting temperature) is the variable we are going to change.
## Step2: Analyze other factors
Concentration of reactants (\(HCl\) and \(Na_{2}CO_{3}\)) and total volume of reactants are factors that can affect reaction speed. To isolate the effect of temperature, these should be kept constant.
# Answer:
A. the starting temperature