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mario62 [17]
3 years ago
14

What is the pressure of nitrogen in atmospheres of a sample that is at 745 mmHg?

Chemistry
1 answer:
Semenov [28]3 years ago
6 0
<span>The pressure of nitrogen in atmospheres of a sample that is at 745 mmHg- n2= .780 atm because 78 (from the 78%) 78/100=0.78.</span>
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The outcome of a experiment is the result
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Using spectroscopic notation write the complete electron configuration for the fluorine atom. Using noble gas notation write the
prohojiy [21]

Explanation:

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1s2 2s2 2p5

Carbon has atomic number of 6 and hence 6 electrons in it's neutral state. The noble gas notation as the following format;

[closest noble gas before the element] remaining electrons

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Please choose the correct number (associated with the vocab word) from the drop down menu that matches the definition
baherus [9]

Q1. -------- a specific way that a quantity may increase over time

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4. Succession

Answer:

1. Exponential growth

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Exponential growth is a specific way that a quantity may increase over time. The instantaneous rate of change of a quantity with respect to time is proportional to the quantity itself. When growth becomes more rapid in relation to the growing total number, then it becomes exponential.

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Q2. ------- is the inherent inclination of a living organism towards a particular complex behavior.

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8 0
3 years ago
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Nimfa-mama [501]

Answer: 4.18925 kJ heat is needed to convert 25.0 g of solid ethanol at -135 °C to liquid ethanol at -50°C.

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Temperature of liquid C_2H_5OH=-50^oC=223K

Specific heats of solid  ethanol = 0.97 J/gK

Specific heats of liquid ethanol = 2.3 J/gK

Heat required to melt the the 25 g solid C_2H_5OH at 159 K

\Delta T_1 = 159 K - 138 K = 21 K

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Hence, 4.18925 kJ of heat will be required to convert 25.0 g of solid ethanol at -135 °C to liquid ethanol at -50°C.

6 0
3 years ago
Help idk how to do this
maksim [4K]

Answer:

Explanation:

so we have to solve it or just answer it?

8 0
3 years ago
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