is this reasearch question very clear is there anthing i need to fix
What effect does changing concentration through diluting sulfuric acid (H2SO4) have on the rate of reaction when paired with magnesium (Mg, 0.013g), as measured by the volume of hydrogen gas produced?
The research question is clear and does not require any fixing. It clearly states the variables being investigated (concentration of sulfuric acid and rate of reaction) and the measurement used (volume of hydrogen gas produced).
The research question you have provided is clear and well-structured. It specifies the variables being studied (concentration, sulfuric acid, magnesium, and volume of hydrogen gas produced) and clearly states the relationship you are investigating (the effect of changing concentration on the rate of reaction). However, to make it even clearer, you can add information about the specific concentrations of sulfuric acid that you will be using for dilution, as well as the units in which the volume of hydrogen gas will be measured. Here's an example of a revised research question:
"What effect does changing the concentration of sulfuric acid (H2SO4) through dilution (using specific concentrations) have on the rate of reaction with magnesium (Mg, 0.013g), as measured by the volume of hydrogen gas produced (in mL or cm³)?"