Ask question

Ask question

All categories

3 years ago

8

Which method of separation would work on a homogeneous mixture salt water

2 answers:

Eddi Din [679]3 years ago

7 0

Answer:

Evaporation

Explanation:

Salt is very soluble in water. Hence in other to be able to recover salt from a homogeneous mixture of water and salt, the mixture is heated so that water molecules can evaporate leaving the salt behind in the evaporating dish.

Butoxors [25]3 years ago

5 0

To separate a mixture of salt and water, you can try first by using filter paper hen with the extra water part set it out to the window so that the salt water evaporates and only the salt is remaining.

You might be interested in

Which of the following is the most correct statement about a gas?

kifflom [539]

I believe that the most correct statement about gases is that gases take the shape of the container. This is because gases have an irregular shape unlike solids. Gases is among the three states of matter, they contain particles or molecules which are further apart compared to those of liquids and solids due to weak intermolecular forces of attraction between them.

3 0

3 years ago

Read 2 more answers

An eagle is flying due east, in level flight, at a speed of 8.9 m/s while carrying a gopher in its talons. The gopher manages to

marshall27 [118]

Answer:

= 18 m/s

Explanation:

v² = u² + 2gh

= 8.9² + 2 * 9.81 * 12

v = 17.74 m/s

= 18 m/s

8 0

3 years ago

Determining wavelength

shutvik [7]

Answer:

7.5E-7

Explanation:

you would use the formula A=c/f (a= wavelength)

from here you would plug in all known values then solve.

5 0

3 years ago

Read 2 more answers

Electromagnetic radiation is more common than you think. Radio and TV stations emit radio waves when they broadcast their progra

Ludmilka [50]

Answer:

Explanation:

1. They have different wavelengths - Because These radiations form a spectra that differs by the size of the wavelength.

2. They have different Frequencies (f) that is frequency = 1/ wavelength

(f = 1/wavelength)

3. They propagate at different speed though a non vacuum media (non vacuum media affect the speed based on the wavelength)

6 0

4 years ago

An object on the end of a spring with spring constant k moves in simple harmonic motion with amplitude A and frequency f. Which

Karo-lina-s [1.5K]

Explanation:

It is given that, an object on the end of a spring with spring constant k moves in simple harmonic motion with amplitude A and frequency f.

The equation of a particle executing SHM is given by :

$x=A\ sin\omega t$ .........(1)

Where

A is the amplitude of the wave

Differentiating equation (1) wrt t as :

$v=\dfrac{dx}{dt}=\dfrac{d(A\ sin\omega t)}{dt}$

$v=A\omega\ cos\omega t$ .........(2)

The kinetic energy of the particle is given by :

$K=\dfrac{1}{2}mv^2$

$K=\dfrac{1}{2}m(A\omega\ cos\omega t)^2$

$K=\dfrac{1}{2}mA^2\omega^2\ cos^2\omega t$ .........(3)

We know that,

$\omega=\sqrt{\dfrac{k}{m}}$

So, equation (3) becomes :

$K=\dfrac{1}{2}kA^2cos^2\omega t$

or

$K=\dfrac{1}{2}kA^2cos^2(2\pi ft)$

So, the kinetic energy of the object is $\dfrac{1}{2}kA^2cos^2(2\pi ft)$ . Hence, this is the required solution.

7 0

4 years ago