3 years ago

Comprehension Questions:

Chemistry

1 answer:

DaniilM [7]3 years ago

5 0

Answer:

It does not change and object's mass

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A chemist must dilute of aqueous aluminum chloride solution until the concentration falls to . He'll do this by adding distilled

marshall27 [118]

Answer:

0.257 L

Explanation:

The values missing in the question has been assumed with common sense so that the concept could be applied

Initial volume of the AICI3 solution $=23.1 \mathrm{mL}$

Initial Molarity of the solution $=833 \mathrm{mM}$

Final molarity of the solution $=75.0 \mathrm{mM}$

Final volume of the solution $=?$

From Law of Dilution, $M_{f} V_{f}=M_{i} V_{i}$

$\Rightarrow V_{f}=\frac{M_{i} V_{i}}{M_{f}}=\frac{833 \mathrm{mM} \times 23.1 \mathrm{mL}}{75.0 \mathrm{mM}}=256.564 \mathrm{mL}=0.256564 \mathrm{L}=0.257 L$

Final Volume of the solution $=0.257$

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Check each item below that is a chemical change.

lutik1710 [3]

Answer:

1,3,5,6,7

Explanation:

the state of the object changes to from something new

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The RNA and DNA backbone differ because the DNA sugar is missing what element?

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Answer:

Explanation:

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One of the main forces driving plate tectonics is the dissipation of heat from the mantle, through convection or large scale upw

IRINA_888 [86]

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Where might you find a temperature of 2 Kelvin?

anyanavicka [17]

D. The coldest regions of outer space

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