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Elenna [48]
3 years ago
6

The particles of a substance are arranged in a definite geometric pattern and are constantly vibrating. This substance can be in

Chemistry
2 answers:
UNO [17]3 years ago
5 0

Answer:

Solid State

Explanation:

in the solid state of matter substances have the particles arranged in a definite geometric pattern and are constantly vibrating, the main difference is the arrangement of the particles in a definite geometric pattern, compared to the liquid state in which particles take the shape of the conteiner where they are in.

siniylev [52]3 years ago
3 0

Answer:

1.  Solid phase.

Explanation:

The  molecules in a solid are held in a definite pattern which is not true of a liquid or gas.

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It would be D. or 9x+y=3050.

Explanation:

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I need to make sure of my answer
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K-12 Molar Mass<br> 7/10<br> Calculate the molar mass of aluminum nitrate, Al(NO3)3.<br> g/mol
tigry1 [53]
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4 0
3 years ago
1. A gas has a volume of 140L at 37 ºC and 620 kpa pressure. Calculate its volume at STP.
solniwko [45]

Answer:

1. Volume as STP = 755 L

2. Outside temperature = 255 K

3. Percentage yield = 70.5%

Explanation:

1. At STP, pressure  = 101.3 kpa, temperature  = 0°C or 273.15 K

Using the general gas equation :

P1V1/T1 = P2V2/T2

P1 = 620 kpa

V1 = 140 L

T1 = 37°C or (273.15 + 37) K = 310.15 K

P2 = 101.3 kpa

V2 = ?

T2 = 273.15 K

V2 = P1V1T2/P2T1

V2 = 620 × 140 × 273.15 / 101.3 × 310.15

V2 = 755 L

2. Using Charles' gas law:

V1/T1 = V2/T2

V1 = 2.5 L

T1 = 290 K

V2 = 2.2 L

T2 = ?

T2 = V2T1/VI

T2 = 2.2 × 290 / 2.5

T2 = 255 K

3. Equation of reaction : 2 Al + 3 CuSO4 ---> Al2 (SO4)3 + 3 Cu

From equation of the reaction,  2 moles of Al produces 3 moles of Cu

Molar mass of Al = 27 g; Molar mass of Cu = 63.5 g

2 moles of Al = 2 × 27 g = 54 g; 3 moles of Cu = 3× 63.5 = 190.5 g

54 g of Al produces 190.5 g of Cu

1.87 g of Al will produce 190.5/54 × 1.87 g of Cu = 6.60 g of Cu

Percentage yield = actual yield /theoretical yield × 100%

Percentage yield = 4.65/6.60 × 100%

Percentage yield = 70.5%

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3 years ago
The caloric content of 0.50 cup of cottage cheese is 1.10 x 102 kcal. This is the amount of energy released when 0.50 cup of cot
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