3 years ago

In order for the wavelength of a wave to increase, the frequency must....

Chemistry

1 answer:

olya-2409 [2.1K]3 years ago

8 0

The answer to this is C.

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A sample of nitrogen is initially at a pressure of 1.7 kPa, a temperature of -10 C and a volume of 7.5 m3. Then the volume is de

zhannawk [14.2K]

Answer:

$\boxed{\text{2.6 kPa}}$

Explanation:

To solve this problem, we can use the Combined Gas Laws:

$\dfrac{p_{1}V_{1} }{T_{1}} = \dfrac{p_{2}V_{2} }{T_{2}}$

Data:

p₁ = 1.7 kPa; V₁ = 7.5 m³; T₁ = -10 °C

p₂ = ?; V₂ = 3.8 m³; T₂ = 200 K

Calculations:

(a) Convert temperature to kelvins

T₁ = (-10 + 273.15) K = 263.15 K

(b) Calculate the pressure

$\begin{array}{rcl}\dfrac{1.7 \times 7.5 }{263.15} & = & \dfrac{p_{2} \times 3.8}{200}\\\\0.0485 & = & 0.0190p_{2}\\p_{2} & = & \textbf{2.6 kPa}\\\end{array}\\\text{The new pressure of the gas is \boxed{\textbf{2.6 kPa}}}$

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3 years ago

Water is a universal solvent because many different solids, liquids, and gases dissolve in it to make solutions. True or false?

grigory [225]

This would deem as True

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3 years ago

Acids taste<br> a. sweet. <br> c. bitter. <br> b. sour. <br> d. salty

Gnesinka [82]

The answer is (b) for example lemon juice is an acid and it tastes sour.
Hope this helps :).

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3 years ago

Which statement is most likely correct about the average temperatures in San Francisco, California as compared to Norfolk, Virgi

Lynna [10]

Answer:

It is higher in Norfolk because of the warm ocean currents from the south

Explanation:

Can I have brainliest answer please?

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3 years ago

What is the mass, in grams, of 1.58 mol of water, h2o?

inn [45]

Answer is: mass of 1,58 mol of water is 28,44 grams.
n(H₂O) = 1,58 mol.
M(H₂O) = 2 · 2 g/mol + 16 g/mol.
M(H₂O) = 18 g/mol.
m(H₂O) = n(H₂O) · M(H₂O).
m(H₂O) = 1,58 mol · 18 g/mol.
m(H₂O) = 28,44 g.
n - amount of substance.
M - molar mass.

3 0

3 years ago