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cricket20 [7]
3 years ago
9

Helpppp pleaseee for 15 points

Chemistry
1 answer:
Mandarinka [93]3 years ago
4 0

Answer:

<h3><em>What is filteration</em><em>:</em></h3>

Filtration, the process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particles. ... In some processes used in the production of chemicals, both the fluid filtrate and the solid filter cake are recovered.

<h3><em>When</em><em> </em><em>do</em><em> </em><em>we</em><em> </em><em>use</em><em> </em><em>it</em><em>:</em></h3>

<em>Filtration is used to separate particles and fluid in a suspension, where the fluid can be a liquid, a gas or a supercritical fluid. Depending on the application, either one or both of the components may be isolated.</em>

<h3><em>In</em><em> </em><em>order</em><em> </em><em>to</em><em> </em><em>separate</em><em> </em><em>a</em><em> </em><em>salt-water</em><em> </em><em>mixture</em><em>,</em></h3><h3><em>should</em><em> </em><em>a</em><em> </em><em>student</em><em> </em><em>use</em><em> </em><em>filtration</em><em>:</em></h3>

The mixture can be separated by filtration, by dissolving the mixture in water. Salt will dissolve in the water, whereas sand will not.

Explanation:

<h3>hope it help's. pls mark as the brainliest.Rocket out.</h3>

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Answer:

no, water is a solvent

Explanation:

A solution is a homogeneous mixture of two substances, so water can only be part of a solution when there is something (a solute) mixed with it, like salt, making it salt water.

Hope that helps.

5 0
3 years ago
Balance the following chemical reactions:
Tcecarenko [31]

1. 2Pb(NO₃)₂ → 2PbO + 4NO₂ + O₂

2. CH₄ + 2O₂ → CO₂ + 2H₂O

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4. MnO₂ + 4HCl → MnCl₂ + 2H₂O + Cl₂

5. Pb(NO₃)₂ + 2NaCl → PbCl₂ + 2NaNO₃

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CuSO_4+Cu_2Cl_2\neq>

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4 0
3 years ago
Read 2 more answers
A serving of fish contains 50 g of protein and 4 g of fat . if protein has a caloric value of 4.0kcal/g and fat has 9.1 kcal/g ,
weqwewe [10]

Answer:

2.4x10² kcal

Explanation:

As the serving of fish contains 50g of protein that is 4.0kcal/g:

50g × (4.0kcal/g) = <em>200kcal</em>

<em> </em>

And in 4g of fat that is 9.1kcal/g:

4g × (9.1kcal/g) = <em>36.4kcal</em>

<em />

That means the kcal of the serving are:

200kcal + 36.4kcal = 236.4kcal

In 2 significant figures: <em>2.4x10² kcal</em>

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I hope it helps!

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3 years ago
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Travka [436]

Answer:

Models make some things easier to understand.

Measurements can be made only on models.

Models help scientists visualize things they can’t see.

Models are perfectly accurate representations of objects.

Scientists can analyze models to make predictions.

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Mark as brainliest......

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Answer:

c

Explanation:

hope it helps ...........

8 0
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