All categories

3 years ago

During which of the following chemical changes does a precipitate form?

Physics

2 answers:

babymother [125]3 years ago

5 0

Answer is B.........

kolbaska11 [484]3 years ago

3 0

Answer: Option (B) is the correct answer.

Explanation:

A solid which is not soluble and has formed from the liquid solution is known as a precipitate.

For example, when lemon juice is added to milk then it results in the formation of paneer (cheese) that is insoluble.

Hence, we can conclude that during the addition of lemon juice into milk will bring a chemical change by forming a precipitate.

You might be interested in

I NEED HELP ASAP!!!

Savatey [412]

I think option C is correct..hope it helps

3 0

2 years ago

Read 2 more answers

A horizontal 2.00\ m2.00 m long, 5.00\ kg5.00 kg uniform beam that lies along the east-west direction is acted on by two forces.

Sunny_sXe [5.5K]

Answer: $240\ rad/s^2$

Explanation:

Given

Length of beam $l=2\ m$

mass of beam $m=5\ kg$

Two forces of equal intensity acted in the opposite direction, therefore, they create a torque of magnitude

$\tau =F\times l=200\times 2=400\ N.m$

Also, the beam starts rotating about its center

So, the moment of inertia of the beam is

$I=\dfrac{ml^2}{12}=\dfrac{5\times 2^2}{12}\\\\I=\dfrac{5}{3}\ kg.m^2$

Torque is the product of moment of inertia and angular acceleration

$\Rightarrow \tau=I\alpha\\\\\Rightarrow 400=\dfrac{5}{3}\times \alpha\\\\\Rightarrow \alpha =240\ rad/s^2$

7 0

3 years ago

Define acceleration what it's formula

Paha777 [63]

Answer:

The definition of acceleration is a change in the rate of motion, speed or action.

<h2>hope it helps.</h2><h2>stay safe healthy and happy..</h2>

4 0

2 years ago

Read 2 more answers

The light rays in the illustration below do not properly focus at the focal point. this problem occurs with?

tankabanditka [31]

Answer:

The problem occurs with all spherical mirrors.

Spherical mirrors are practical up to about inches in diameter.

Reflecting telescopes use spherical mirrors for apertures up to about 4 ".

Larger aperture telescopes use parabolic mirrors to obtain sharp focus.

7 0

3 years ago

A screen is separated from a double-slit source by a distance L. When light of wavelength 563 nm is incident on the double slit,

Andrew [12]

Answer:

β 2 = 0.02575 mm

Explanation:

given data

wavelength = 563 nm

separation distance between adjacent bright fringes = 0.0290 mm

wavelength = 500 nm

solution

we get here separation distance between adjacent bright fringes that is express as

β = $\frac{\lambda D }{d}$ ..................................1

here D is distance from plane of slit to screen

and d is slit sepation that is constant

$\frac{\beta 1}{\beta 2} = \frac{\lambda 1}{\lambda 2}$

β 2 = $\frac{500}{563} \times 0.0290$

β 2 = 0.02575 mm

7 0

3 years ago