sloppycanada
  • sloppycanada
A few confusing questions - Which of the following is an accurate description of a theory? A) a well-tested explanation for how something works. B) an observation made over and over again. C) someone's idea about how something works. D) easily proved wrong and therefore cannot be trusted in science. I think this one is B. You observe that a liquid has decreased volume by 23.4 milliliters (mL) during the duration of an A) experiment. What is this type of observation? quantitative B) qualitative C) indirect observation D) a physical change I think this is a quantitive
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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aaronq
  • aaronq
It's a, an observation without an explanation is just an observation
aaronq
  • aaronq
volume measurements involve numbers that indicate a value on a scale for a given parameter, these are quantitative.
sloppycanada
  • sloppycanada
When completing an experiment, results will be much more accurate if multiple trials are completed and the results averaged. True False I think False. To accurately measure the volume of a typical liquid in a graduated cylinder, what should you do? A)look at the bottom part of the meniscus B) look at the top part of the meniscus C) average the top and bottom parts of the meniscus D) ignore the meniscus and determine which mL line the liquid is closest to I say "D". Erin believes she has devised a way to make easy measurements of liquids in a graduated cylinder. She takes the volume reading from the top of the meniscus and a volume reading from the very bottom of the meniscus, and then she averages these readings. Explain why this method is flawed. My answer - To find the volume of the liquid in the graduated cylinder you can find it where the bottom of the meniscus falls onto the cylinder's scale.

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sloppycanada
  • sloppycanada
@abb0t If you're free.
abb0t
  • abb0t
first one is wrong. Accuracy is how close a measured value is to the actual value (mathematically speaking). and so is the 2nd one is also wrong.
sloppycanada
  • sloppycanada
So the answer to the first one is "True" and the answer to the second if "C"
abb0t
  • abb0t
2\(^{nd}\) one is still wrong.
sloppycanada
  • sloppycanada
Look at the top part of the meniscus?
sloppycanada
  • sloppycanada
@abb0t

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