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Anton [14]
3 years ago
8

The following illustration shows a tool that can be used to separate elements of certain mixtures. The picture is a magnet. This

tool can separate what type of mixture? A. a solution of two solids B.a mixture of particles with different densities C.a mixture of particles of different sizes D.a mixture of magnetic and nonmagnetic items
Chemistry
1 answer:
kakasveta [241]3 years ago
3 0

Answer:

D obviously

Explanation:

a solution can't be sperated with a magnet

and the particles mentioned isn't specific

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Allele, dna, chromosome, nucleus of a cell
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2 years ago
How many significant digits are in the volume measurement 0.010 mL? A) 1 B) 2 C) 3 D) 4 E) none of the above
fgiga [73]

Answer:

The correct answer is option B.

Explanation:

Significant figures :These are figures in a number which expresses the value of the magnitude of a quantity to a specific degree of accuracy is known as significant digits.

Significant digits in the volume measurement 0.010 mL are:

0.0\bar{10} = 2 significant figures

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6 0
3 years ago
How many moles of co2 are produced when 5.40 mol of ethane are burned in an excess of oxygen?
Nimfa-mama [501]
<span>Reaction of ethane combustion:

2C2H6 (g) + 7O2 (g) ----> 4CO2 (g) + 6H2O 

According to the reaction, we can see that </span>C2H6 and CO2 have following stoichiometric ratio: 

n(C2H6) : n(CO2) = 2 : 4

If we know the number of moles of ethane we can calculate moles of carbon dioxide:

2 x n(CO2) = 4 x n(C2H6)

n(CO2) = 2 x n(C2H6)

n(CO2) = 2 x 5.4 = 10.8 mole of CO2 <span>are produced</span>


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3 years ago
The first movement of Vivaldi's "spring" has recurring theme called
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The gas in a balloon occupies 2.25 L at 298 K at what temperature will the balloon expand to 3.50 L
Alenkinab [10]

The temperature  that the balloon will  expand to 3.50 l is  463.56 K


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

by use of Charles law formula

that is  V1/T1 = V2/T2   where;

V1 = 2.25 l

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V2= 3.50 l

T2=?

 make T2 the subject of the formula  T2 =(V2  xT1) /v1

T2= (3.50 l x 298 K)  /2.25 L  = 463.56 K

4 0
3 years ago
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