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Damm [24]
3 years ago
15

What is the mass in pounds of 1.000 quart of mercury

Chemistry
1 answer:
aleksandr82 [10.1K]3 years ago
6 0
13.6 g/ml shall be it
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If a wave has a wavelength of 13 meters and a period of 0.005, what's the velocity of the wave? A. 2,600 m/s B. 260 m/s C. 1,300
Rina8888 [55]

Answer:

V = 2600ms⁻¹

Explanation:

Given parameters:

Wavelength(λ) = 13meters

Period (T) = 0.005s

Period(T) is the time it takes for a full cycle of vibration to pass through. It's unit is in seconds (s)

The Velocity of waves is expressed as:

V = fλ

Where f = frequency(s⁻¹)

Frequency of a wave is the number of waves that passes through a point per unit time

f = 1/T

Where T is the period

We can therefore express Velocity of waves as a function of period

V = λ/T

Inputing the parameters, we have:

V = 13m / 0.005s

V = 2600ms⁻¹

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Explanation:

water evaporates because when h2o (water) particles heat up, they gain energy causing them to start to vibrate. this moves the oarticles further and further away from eachother and making the substance less dense, and turning it into a gas. meaning it has evaporated

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2 years ago
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How many atoms are there in 2.0 moles of magnesium (Mg)?
hjlf

Answer:

It should be 1. 1.2 X 10^24

Explanation:

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Give three exaples of passive transport
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Diffusion, facilitated diffusion, filtration, and osmosis 
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The half-life of barium-131 is 12.0 days. How many grams of
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Let's see

\\ \rm\Rrightarrow A=A_o(0.5)^{\frac{t}{H}}

  • H is half-life

\\ \rm\Rrightarrow A=10(0.5)^{\frac{60}{12}}

\\ \rm\Rrightarrow A=10(0.5)^5

\\ \rm\Rrightarrow A=10(0.03125)

\\ \rm\Rrightarrow A=0.3125g

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2 years ago
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