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SpyIntel [72]
2 years ago
6

i want to make a presentation on mixtures Clearly describes the process through illustrations or other visuals. Describe termino

logy relevant to the process Provide at least 3-4 daily life applications of the process. Presentation (layout, headings/subheadings,verbal explanation)
Chemistry
1 answer:
Furkat [3]2 years ago
4 0

Answer:

Mixture

Explanation:

Definition:

              An impure substance that contain two or more pure substances that retains their individual chemical characteristics.

Examples:

1.  Smoke and fog(smog)

2.  Dirt and water(mud)

3.  Sand , water and gravel(cement)

4.  Water and salt (sea water)

5.  Petroleum, hydrocarbons and fuel addictives(Gasoline)

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What do Potassium and Krypton have in common and what are their differences based on their location on the periodic table?
Kamila [148]

Potassium (K) and Krypton (Kr) are in the same period, so they have the same number of electron shells. Potassium is more reactive than Krypton because it only has one valence electron.

K and Kr are both in Period 4, so they each have the n = 1, 2, 3, and 4 shells. Kr is less reactive than K because it already has a complete octet.


“Potassium (K) and Krypton (Kr) are in the same period, so they have the same number of electron shells. Krypton is more reactive than Potassium because it has a full outer shell” is <em>incorrect </em>because having a full outer shell means that the element is unreactive.


“Potassium (K) and Krypton (Kr) are in the same group, so they have the same number of valence electrons. They have different numbers of electron shells” is <em>incorrect </em>for three reasons:

1. K is in Group 1 and Kr is in Group 18.

2. K has one valence electron, and Kr has eight valence electrons.

3. They have the same number of electron shells.


“Potassium (K) and Krypton (Kr) are in the same group, so they have the same number of valence electrons. They have different numbers of electron shells” is <em>incorrect</em> for two reasons:

1. K and Kr have different numbers of valence electrons.

2. They have the same number of electron shells.

8 0
2 years ago
A 720. cm^3 vessel contains a mixture of Ar and Xe. If the mass of the gas mixture is 2.966 g at 25.0°C and the pressure is 760.
sleet_krkn [62]

Explanation:

The given data is as follows.

      Pressure (P) = 760 torr = 1 atm

      Volume (V) = 720 cm^{3} = 0.720 L

     Temperature (T) = 25^{o}C = (25 + 273) K = 298 K

Using ideal gas equation, we will calculate the number of moles as follows.

                                PV = nRT

   Total atoms present (n) = \frac{PV}{RT}

                                          = 1 \times \frac{0.720 L}{0.0821 \times 298}

                                           = 0.0294 mol

Let us assume that there are x mol of Ar and y mol of Xe.

Hence, total number of moles will be as follows.

               x + y = 0.0294

Also,      40x + 131y = 2.966

             x = 0.0097 mol

              y = (0.0294 - 0.0097)

                = 0.0197 mol

Therefore, mole fraction will be calculated as follows.

Mol fraction of Xe = \frac{y}{(x+y)}

                               = \frac{0.0197}{0.0294}

                              = 0.67

Therefore, the mole fraction of Xe is 0.67.

6 0
2 years ago
PLEASE HELP ME ASAP What is the volume of 28.9 g of mercury if the density is 13.8 g/mL? *
strojnjashka [21]

Answer:

2.09 mL

Explanation:

density = mass/volume

13.8 = 28.9/v

13.8v = 28.9

v = 2.09 mL

8 0
2 years ago
Realizar un Experimento Teóricamente, considerando la definición de mezcla, dibuja y explicar de forma teórica su proceso de pre
Mrrafil [7]

Answer:

rffdf

Explanation:

7 0
2 years ago
Which of the following is true about the differences between the "Plum Pudding" model and Rutherford's model? There are two poss
Ugo [173]
I think it is the letter A because they both Make sense
7 0
3 years ago
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