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Alexus [3.1K]
2 years ago
6

What does chemical test mean

Chemistry
2 answers:
natta225 [31]2 years ago
8 0
Hope this helps! chemical test is a qualitative or quantitative procedure designed to identify, quantify, or characterise a chemical compound or chemical group. It is used to see if the driver had presence of alcohol or drugs in their system
DENIUS [597]2 years ago
7 0
Lol uhhhhh i don’t know, need points sorry
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Which lists the elements in order from least conductive to most conductive?
AfilCa [17]

nitrogen (N), antimony (Sb), bismuth (BI)

Explanation:

Electrical conductance increases from Nitrogen to antimony and then Bismuth. Electrical conductance increases with available free electrons.

  • The elements listed belongs to Group V on the periodic table.
  • Group V elements are Nitrogen, Phosphorus, Arsenic, Antimony, Bismuth.
  • As we go down the group, electrical conductance increases.
  • This is because the radius of the atom becomes larger and the pull on the outer electrons become very weak.
  • Outer electrons becomes free to facilitate electrical conductance.
  • We can also see that metallicity i.e electropositivity increases down the group.

Learn more:

Metallic bonds brainly.com/question/6071838

#learnwithBrainly

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3 years ago
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Many _____ transfer mechanical energy from one _______ to another.
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The answer is machines, and object. I hope this helps.
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3 years ago
Why do scientists study seismographs
o-na [289]

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to study sub terranian earth movements

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8H earth science

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3 years ago
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What are specatator ions
Margaret [11]

Answer:

A spectator ion is an ion that does not participate in a chemical reaction and is found in a solution before and after a reaction.

Hope this helped :)

5 0
3 years ago
In an experiment designed to determine the concentration of Cu 2 ions in an unknown solution, you need to prepare 100 mL of 0.10
Alexxandr [17]

Answer:

1.6 grams

Explanation:

We need to prepare 100 mL (0.100 L) of a 0.10 M CuSO₄ solution. The required moles of CuSO₄ are:

0.100 L × 0.10 mol/L = 0.010 mol

The molar mass of CuSO₄ is 159.61 g/mol. The mass corresponding to 0.010 moles is:

0.010 mol × (159.61 g/mol) = 1.6 g

We should use 1.6 grams of CuSO₄.

8 0
3 years ago
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