I have a quiz and the time is unlimited. This sentence appeared to me. The timer can only start after the setup process is finished.
What does this timer mean? Why does that time appear unlimited, please explain

1. combine iron and copper (ii) sulfate solution. (hint: iron will form the iron (iii) ion) fe + cuso4 → 2. combine lead (ii) nitrate and potassium iodide solutions. pb(no3)2+ kl → 3. combine magnesium metal and hydrochloric acid solution. mg + hcl → 4. electrolysis (splitting) of water. h2o → 5. burning magnesium. mg + o2 →

How do you lengthen a pattern piece? (family and consumer science, sewing)

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled