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TEA [102]
3 years ago
10

Krypton is named after the Greek word that means “secret.” Which explains why krypton was most likely given this name?

Chemistry
2 answers:
skelet666 [1.2K]3 years ago
7 0

Answer:

C

Explanation:

GaryK [48]3 years ago
4 0

Answer:

C) Krypton is a noble gas, so it was difficult for chemists to find it, as though it was a secret.

Explanation:

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A solution is made containing 4.6 g of sodium chloride per 250g of water.
lozanna [386]

Answer:

\large \boxed{1.81 \, \%}

Explanation:

\text{Mass percent} = \dfrac{\text{mass of solute} }{\text{mass of solution}} \times 100 \, \%

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Calculations:

Mass of solution = mass of NaCl + mass of water = 4.6 g + 250 g = 254.6 g.

\text{\% m/m} = \dfrac{\text{4.6 g} }{\text{254.6 g}} \times 100 \, \% = \mathbf{1.81 \, \%}\\\\\text{The percent by mass of NaCl is $\large \boxed{\mathbf{1.81 \, \%}}$}

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4 years ago
Question 3(Multiple Choice Worth 4 points)
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Answer:

It donates a hydrogen ion

Explanation:

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