Chemistry, 16.01.2020 06:31 dflorez3064
Thomson's atomic model is best described by which of the following statements? a. a nucleus with electrons moving around it like planets
b. electrons surrounded by orbiting electrons
c. a negative sphere with electrons surrounding it
d. a positive solid sphere with electrons dispersed throughout it
Answers: 3
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As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary
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What are transitions between a liquid and gas called? identify which way they are transitioning
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Chemistry, 22.06.2019 13:50
Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.
Answers: 1
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Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?
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Thomson's atomic model is best described by which of the following statements? a. a nucleus with el...
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