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HACTEHA [7]
3 years ago
8

Observation and experimentation have led scientists to accept a theory about the atom. This theory is called the Atomic Theory.

Scientific evidence collected and observed by scientists over time suggests that the atom has a nucleus, containing protons and neutrons, and electrons that travel as waves around the nucleus. What makes this a scientific theory?
Chemistry
2 answers:
nataly862011 [7]3 years ago
5 0
<h3><u>Answer;</u></h3>

It is the best explanation that scientists can offer, based on many scientific investigations

<h3><u>Explanations.</u></h3>
  • <u><em>Scientific Theory is an explanation supported by a large amount of evidence; best explanation based upon what we know. It is a theory that has been tested and proved. It needs to be proven and tested multiple times to be even stronger.</em></u>
  • Evidence refers to the results collected when a theory or hypothesis is tested. Scientific evidence serves to either support or counter a scientific theory or hypothesis.
  • Scientific theory explains observations or events  based on knowledge gained from many investigations and observations.
Sunny_sXe [5.5K]3 years ago
4 0
It is a scientific theory because it is built on investigations by many scientists in order to provide a strong and testable explanation. A scientific theory is an in-depth explanation, whereas a scientific law is statement about an observed phenomenon or a unifying concept. 
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Answer is: pH value of morphine is 10.64.<span>
Chemical reaction: </span>C₁₇H₁₉NO₃ + H₂O → C₁₇H₁₉NO₃H⁺ +OH⁻.<span>
Kb(</span>C₁₇H₁₉NO₃) = 10∧(-5,79) = 1,62·10⁻⁶.<span>
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Kb(</span>C₁₇H₁₉NO₃) = c(OH⁻) · c(C₁₇H₁₉NO₃H⁺) ÷ c(C₁₇H₁₉NO₃).<span>
c(OH</span>⁻) = c(C₁₇H₁₉NO₃H⁺) = x.
1,62·10⁻⁶<span> = x² ÷ (0,115 - x).</span><span>
Solve quadratic equation: x = c(OH</span><span>⁻) = </span><span>0,000431 M.
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