Question

1. jaz designs an experiment to determine how the amount of sodium chloride affects the boiling point of water. he adds 1 g, 5 g, and 10 g of sodium chloride to three different beakers, each containing 100 ml of water. there is a fourth beaker that contains 100 ml water without any sodium chloride. he heats each of the samples on a bunsen burner and measures the boiling point with the same thermometer. which of the following is the independent/manipulated variable in the experiment? the temperature at which the water boils the amount of sodium chloride the amount of water the thermometer

Explanation:

The independent variable is what the experimenter changes. Here, Jaz changes the amount of sodium chloride added to water. The boiling - point is the dependent variable, the amount of water is kept constant, and the thermometer is a tool for measurement.

Answer:

B. the amount of sodium chloride