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lawyer [7]
3 years ago
5

In which region is the substance in both the solid phase and the liquid phase ?

Chemistry
2 answers:
Andreas93 [3]3 years ago
8 0

Answer:

2 or 3

Explanation:

sergiy2304 [10]3 years ago
3 0

Answer:  Region 3

Explanation:  The temperature and time graph suggests that region 3 is the region in which the substance can co exist in both the phases that is solid phase and liquid phase.

Region 1 explains that the the solid has just started melting and there occurs a break point and then region 2 again explains that the solid is taking more time with temperature to get converted into the liquid and thus region 3 explains the equilibrium between the two phases.

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How many moles of NO2 form when<br> 63.25 g N2O5 decompose?<br> 2N2O5→ 4NO2 + 0₂
GREYUIT [131]

Answer:

1.1713 moles

Explanation:

RFM of N2O5= (14*2)+(16*4)=108

Moles of N2O5= Mass/RFM= 63.25/108= 0.5856 moles

Mole ratio of N2O5:NO2 = 2:4

Therefore moles of NO2= 4/2*0.5856= 1.1713 moles

7 0
2 years ago
Definition of e = mc2
Nitella [24]

Answer:

Energy equals mass times the speed of light squared.

Explanation:

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3 years ago
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A sample of gas at a pressure of 121.59 kPa, a volume of 31 L, and a temperature of 360 K contains how many moles of gas? A. 0.7
natali 33 [55]

Answer:

C. 1.3 mol

Explanation:

PV = nRT

where P is absolute pressure,

V is volume,

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Given:

P = 121.59 kPa

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n = PV / (RT)

n = (121.59 kPa × 31 L) / (8.3145 L kPa / mol / K × 360 K)

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n = 1.26 mol

Round to two significant figures, there are 1.3 moles of gas.

4 0
3 years ago
What are 3 things an Apple, Knife and Mirror have in common? 
s2008m [1.1K]
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3 years ago
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