The answer is actually D. The pH of the products can be different from the pH of the reactants. Hope this helps :)
Answer:
Dark matter is nonluminous material that is postulated to exist in space and that could any of Several form including weakly interacting particles.
Explanation:
dark matter is basically composed of particles that do not absorb, reflect or emit light, so they can't be detected by observing electromagnetic radiation.
The answer is Non-renewable
Your independent variable is - The kind of nail polish used
Your dependent variable is - How much the nails have grown
And your constant is - Amount of time allowed for growth
