To ensure safe chemical concentrations, it is advisable to use a ________ cup.

Using a measuring cup is advisable for ensuring safe chemical concentrations because it provides a standardized method for accurately measuring liquid substances. This accuracy is crucial when mixing cleaning solutions, as even small variations can lead to ineffective cleaning or potential safety hazards. Measuring cups typically have clear markings that indicate volume, which helps prevent over- or under-measurement and fosters consistency in the preparation of cleaning solutions.

Graduated cups may also be beneficial, as they allow for more precise measurements if needed, but the broader category of measuring cups encompasses standard cups designed for general use, which are adequately accurate for most cleaning applications. Standard measuring and plastic cups, while useful in specific contexts, do not emphasize the essential feature of ensuring the right concentration of chemicals as effectively as a measuring cup specifically designed for that purpose. Thus, employing a measuring cup directly supports the goal of safe handling and application of cleaning solutions.