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Slav-nsk [51]
3 years ago
8

What was one of the first series of event in the study of chemistry

Chemistry
1 answer:
baherus [9]3 years ago
7 0
Discovered and isolated radium and polonium in 1898
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What the different betwen observe and reference
NNADVOKAT [17]
Observe to to gather facts, by paying close attention towards what you are working on.

meanwhile, reference is the act or process on reaching to your conclusion, based on facts you already know .
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What do a mole of magnesium (Mg) and a mole of iron (Fe) have in common?
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What they have in common is that they both have the same number of atoms.
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What is the molarity of a 2.0L solution that was made up with 4.0 moles of NaCl?
Finger [1]

Answer:

[NaCl]: 2M

Explanation:

This solution is made of NaCl therefore:

Our solute is NaCl

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We can also make a rule of three:

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So, In 1 L we must have (1 . 4) /2 = 2 M

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