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3 years ago

Which of these best describes a flight that is approaching the speed of sound

Chemistry

2 answers:

liberstina [14]3 years ago

8 0

More drag is created because the air molecules are not moving out of the way of the airplane

bagirrra123 [75]3 years ago

4 0

More drag is created because the air molecules are not moving out of the way

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It refers to the cracked sections of the earth's crust.

poizon [28]

Answer:

Plates

Explanation:

The Earth's crust is broken up into sections called plates. Tectonic plates are on the mantle which allow them to move.

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2 years ago

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At what temperature would a 1.50 m nacl solution freeze, given that the van't hoff factor for nacl is 1.9? kf for water is 1.86

IRINA_888 [86]

Win to ki ne lei ma ki mna mata ki ss kk

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2 years ago

What is the correct name for the compound H2O

Deffense [45]

Answer:

The common name for the compound H2O is water.

Explanation:

The systemic name of H2O is Dihydrogen monoxide.

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2 years ago

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Calculate hydrochloric acid (umol)in 200 ul of a 0.5173Msolution of acid?

strojnjashka [21]

Answer: The moles of hydrochloric acid is $1.0346\times 10^{-4}\mu mol$

Explanation:

To calculate the molarity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}$

Or,

$\text{Molarity of the solution}=\frac{\text{Micro moles of solute}\times 10^6}{\text{Volume of solution (in }\mu L)}}$

We are given:

Molarity of solution = 0.5173 M

Volume of solution = $200\mu L$

Putting values in above equation, we get:

$0.5173M=\frac{\text{Micro moles of HCl}\times 10^6}{200\mu L}\\\\\text{Micro moles of HCl}=1.0346\times 10^{-4}\mu mol$

Hence, the moles of hydrochloric acid is $1.0346\times 10^{-4}\mu mol$

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2 years ago

Waves move fastest in

Arturiano [62]

The correct answer is high temperature solids

6 0

2 years ago

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