Biology, 24.09.2019 02:30 lauren9261
Sara measured the amount of potassium nitrate (kno3) that could be dissolved in 100 grams of water at different temperatures. she repeated the test five times. the data from sara's experiment is listed in the table below.
temperature mass of kno3 in 100 g water average mass
kno3
trial 1 trial 2 trial 3 trial 4 trial 5
0°c 12.8 g 12.9 g 13.2 g 12.7 g 13.1 g 12.9 g
20°c 31.9 g 32.1 g 32.3 g 31.8 g 31.7 g 32.0 g
40°c 62.8 g 64.3 g 64.1 g 63.8 g 64.5 g 63.9 g
60°c 108.6 g 111.4 g 111.1 g 109.7 g 109.2 g 110.0 g
80°c 168.9 g 169.9 g 169.2 g 168.4 g 167.1 g 168.7 g
which of the following is the best inference sara could make based on her data?
a.
there is not enough information provided to make any inferences about the solubility of kno3.
b.
temperature has no effect on the amount of kno3 that can dissolve in water.
c.
the amount of kno3 that can dissolve in water increases as temperature increases.
d.
the addition of kno3 causes the temperature of the water to increase.
Answers: 1
Biology, 21.06.2019 15:30
Compare and contrast the adaptations of free-living flatworms and parasitic flatworms
Answers: 1
Biology, 21.06.2019 18:30
Which table best shows the impacts resulting from human activity? impact of human activities human activity impact forest area cleared to construct an airport increase in oxygen level vegetation cleared to construct an oil mine increase in pollution impact of human activities human activity impact forest area cleared to construct an airport increase in sound pollution vegetation cleared to construct a power plant contamination of water impact of human activities human activity impact beehives cleared from urban areas increase in vegetation dams constructed on a river increase in fish population impact of human activities human activity impact beehives cleared from urban areas increase in bird population dams constructed on a river better quality of water
Answers: 3
Biology, 22.06.2019 01:00
Coral reefs support more species per unit area than any other marine environment on earth. what is one way coral reefs are important to the health of the biosphere
Answers: 1
Biology, 22.06.2019 02:00
How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.
Answers: 1
Sara measured the amount of potassium nitrate (kno3) that could be dissolved in 100 grams of water a...
Geography, 26.10.2020 22:20
English, 26.10.2020 22:20
Spanish, 26.10.2020 22:20
Mathematics, 26.10.2020 22:20
Physics, 26.10.2020 22:20
Computers and Technology, 26.10.2020 22:20
Mathematics, 26.10.2020 22:20
Mathematics, 26.10.2020 22:20