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Arlecino [84]
4 years ago
15

Separation technique used to separate mud and water without heating​

Chemistry
1 answer:
Murrr4er [49]4 years ago
8 0

Answer:

Separation technique used to separate mud and water without heating​:

<u>Sedimentation-Decantation</u>

<u></u>

Explanation:

<em>1.The settling of the heavier particle at the bottom when the container is left undisturbed is called </em><u><em>sedimentation.</em></u>

<u><em></em></u>

<u><em>In a mixture of Mud and water :</em></u>

In this process the heavy mud particles settle at the bottom due to their high density .

2. Decantation : It is the process of pouring out the upper clear layer of the light particles.

<u><em>In a mixture of Mud and water :</em></u>

The water is lighter and form a clear layer over the settled mud particles. Hence by decantation the clear water is poured into a clean separate container

Thus mud remain in the bottom and the mixture is separated

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Wind speed because speed is how fast something moves
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Sally has been described by her psychology teacher, Mrs. Feldspar, as a bit
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Sally is struggling with Prospective memory.

<u>Explanation:</u>

The type of memory in which an individual has problem to remember a planned set of actions. He or she can remember or recall it only after some period of time may be in future and not at that time where those actions needs to be performed. These type of memory problem can range from a simple situation like the tasks that are to be done in common, simple and daily basis to serious issue.

Some of the instances of this kind of prospective memory includes, closing a tap after usage, cut a call over phone when the conversation is done,etc. These instances includes only simple issues. Some of dangerous issues includes forgetting to take regular medicines, forgetting to take some protective and safety measures while driving,etc.

4 0
3 years ago
Question 2(Multiple Choice Worth 3 points)
viktelen [127]

Answer:

2.0 x 10⁻³ M/s.

Explanation:

  • The rate of the reaction is the change of the concentration of the reactants or the products with time.

<em>The rate of the reaction = - Δ[reactants]/Δt = - [(0.6 M - 1.8 M)]/(580 s - 0 s) = 2.069 x 10⁻³ M/s.</em>

5 0
3 years ago
A board of wood has a density of 0.487 g/cm3. The board is measured to have a length of 3.21 cm, a width of 12.2 cm and a height
ivolga24 [154]

Answer:

The mass of board is 1.52 g.

Explanation:

Given data:

Density of wood = 0.487 g/cm³

Length of board = 3.21 cm

Width of board = 12.2 cm

Height of board = 0.80 mm (0.80/10=0.08 cm)

Mass of board = ?

Solution:

We know that density of an object is equal to the mass of substance divided by its volume. So we can calculate the mass from density formula.

Formula:

D = m/v

d = density

m = mass

v = volume

Now we will calculate the volume first.

V = length × width × height

V = 3.21 cm × 12.2 cm × 0.08 cm

V = 3.13cm³

Now we will calculate the mass.

D = m/v

0.487 g/cm³ = m/ 3.13 cm³

m = 0.487 g/cm³ × 3.13 cm³

m = 1.52 g

The mass of board is 1.52 g.

5 0
3 years ago
Lithium hydroxide is used in alkaline batteries. Calculate the molarity of a solution prepared by dissolving 1.495 moles of LiOH
weeeeeb [17]

Answer:1)1.99 M

Explanation:

Molarity  is given as = moles solute/Liter solution

The solute which is LiOH is already given in moles as 1.495 moles

Given that solution  is  750 mL,  we convert to liters.

Liters of the solution=  mL of the solution   x (1 L/1000 mL)

750 mL x (1 L/1000 mL)

0.75 L

Molarity = moles solute/Liter solution

Molarity = 1.495 moles of LiOH/0.75 L of solution

Molarity = 1.99M

The molarity of this solution is 1.99M (moles per liter).

5 0
3 years ago
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