Chemistry, 01.12.2021 01:10 GreenHerbz206
When a 2. 00 g sample of rbbr is dissolved in water in a calorimeter that has a total heat capacity of 0. 854 kj⋅k−1, the temperature decreases by 0. 310 k. Calculate the molar heat of solution of rbbr.
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Balance the following reaction. as2s3 + 9o2 → 2as2o3 + so2
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In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i
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Which words or phrases identify layers of groundwater? check all that apply. water table kettle lake saturation zone underground lake sinkhole will give brainiest, answer quickly.
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Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative
Answers: 3
When a 2. 00 g sample of rbbr is dissolved in water in a calorimeter that has a total heat capacity...
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