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Ivahew [28]
4 years ago
9

Which of the following methods can be used to remove water from a mixture of sand and water? A. Centrifuge B. Filtration C. Floa

tation D. Magnetism
Chemistry
2 answers:
vlabodo [156]4 years ago
4 0

Filtration is correct


wlad13 [49]4 years ago
3 0
The correct answer is b. filtration
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Suppose you were given a substance and asked to determine weather or not it was a plasma. Write the characteristics you would lo
Sphinxa [80]

Electrical conductivity, electromagnetism, and temperature are the features that one would look for in order to determine plasma. Plasma refers to a hot ionized gas possessing high electrical conductivity. It is electrically neutral with negative and positive particles. It can be considered the most abundant form of matter in the universe.  

The features of plasma are substantially distinct from those of the usual neutral gases so that plasmas are regarded as a different fourth state of matter.  


5 0
3 years ago
Read 2 more answers
The density of air under ordinary conditions at 25°C is 1.19 g/L. How many kilograms of air are in a room that measures 10.0 ft
Lunna [17]

Answer: The mass of air present in the room is 37.068 kg

Explanation :  Given,

Length of the room = 10.0 ft

Breadth of the room = 11.0 ft

Height of the room = 10.0 ft

To calculate the volume of the room by using the formula of volume of cuboid, we use the equation:

V=lbh

where,

V = volume of the room

l = length of the room

b = breadth of the room

h = height of of the room

Putting values in above equation, we get:

V=10.0ft\times 11.0ft\times 10.0ft=1100ft^3=31148.53L

Conversion used : 1ft^3=28.3168L

Now we have to calculate the mass of air in the room.

Density=\frac{Mass}{Volume}

1.19g/L=\frac{Mass}{31148.53L}

Mass=37066.7507g=37.068kg

Conversion used : (1 kg = 1000 g)

Therefore, the mass of air present in the room is 37.068 kg

3 0
3 years ago
Read 2 more answers
Which of the following substances will cause the greatest temperature change if the same amount of each substance is added to 1.
Masja [62]
The answer is FeCl3, just took the quiz
5 0
3 years ago
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The ability of a material to burn (its flammability) is an indication of the materials reactivity with oxygen. Does the informat
Nataliya [291]

Answer:

Yes, this theory supports the inert nature of noble gases.

Explanation:

Noble gases already attain octet state stability, by having their outer shells completely filled with electrons. This makes them unable to take part in chemical reaction (by lose, gain or sharing of electrons).

Flammability occurs when matter burns through combination with oxygen, and changes to a different substance.

I hope this explanation is clear, let me know if I can be of further assistance.

6 0
3 years ago
I can hit a metal with a hammer without the metal shattering because of its
kati45 [8]

Answer: Malleability

Explanation: cuz ... its right ... lol

8 0
3 years ago
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