Questions
CHM111L A Introduction to Lab Quiz
Multiple dropdown selections
The density of water at 21oC (room temperature) is 1.0 g/mL or 1.0 kg/L. If a material is less dense than water, it will float. If a material is more dense than water, it will sink. Consider the following household items. Determine if they will or will float or sink in water at 21oC. If you aren't sure, try it out for yourself! Then decide if the material is more or less dense than water. Household Item Toothpick: float Wood is [选择] less more dense than water. Ice: [选择] float sink Ice is [选择] more less dense than water. Penny: sink A penny is [选择] more less dense than water.
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Step-by-Step Analysis
We are comparing whether common household items will float or sink in water at 21°C, based on the fact that water has a density of 1.0 g/mL (1.0 kg/L) and that substances less dense than water float while those more dense sink.
Toothpick: The first dropdown option is 'float'. A toothpick is made of wood and has a density less than water, so it should float. The alternative 'sink' would be incorre......Login to view full explanationLog in for full answers
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