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grin007 [14]
3 years ago
12

A decentralized system of crime laboratories currently exists in the United States under the auspices of various governmental ag

encies at the ___________, ___________, ___________, and ___________ levels of government.
Chemistry
1 answer:
Vesna [10]3 years ago
8 0

Answer:

Federal, State, Municipal and County

Explanation:

A decentralized system of crime laboratories currently exists in the United States under the auspices of various governmental agencies at the federal, state, municipal and county levels of government.

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An atom that has 13 protons and 15 neutrons is isotope of the element A.) nickel B.) silicon C.) aluminum D.) phosphorus. Why?
joja [24]

An atom that has 13  protons and 15  neutrons  is isotope  of Aluminium (answer C)

<u><em>Explanation</em></u>

  • Isotope  is a form of the same element with   the equal number of protons but difference number  of neutrons  in  their nuclei.
  • In other words isotope has the same  atomic number but different mass  number.
  • Atomic  number of a element is determined by number of  protons of an element.

  • from the  periodic table   Aluminum in atomic number 13 therefore  it has 13 protons  <em>therefore an atom that  has 13  protons and 15 neutrons is   a isotope  of Aluminium. </em>
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Which of these steps is most likely to be part of an investigation about friction?
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.266 mol CO plus .524 Mol H2 gives how many moles of CH3OH
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Explanation:

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