Question

how does clark’s experiment support the claim that mercury is heavier than water? by showing that less atmospheric pressure is needed to move the mercury by showing that more mercury falls from a test tube when a vacuum is created by demonstrating that less mercury fills a dish when a test tube is inverted into it by demonstrating that a shorter column of mercury is supported by the atmosphere

Explanation:

The density of mercury is much higher than that of water. In a barometer - like experiment, the atmospheric pressure supports a shorter column of mercury compared to the height of a water - column it would support, showing mercury is heavier (more dense).

Answer:

by demonstrating that a shorter column of mercury is supported by the atmosphere