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photoshop1234 [79]
3 years ago
7

Jet streams generally flow toward the

Chemistry
2 answers:
vfiekz [6]3 years ago
7 0

Answer:

The major jet streams on Earth are westerly winds that flow west to east.

earnstyle [38]3 years ago
7 0
I’m pretty sure the answer would be D!!!
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To 225 mL of a 0.80M solution of KI, a student adds enough water to make 1.0L of a more dilute KI solution. What is the molarity
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Hope this helps you!

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3 years ago
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A flask of volume 2.0 liters, provided with a stopcock, contains oxygen at 20 oC, 1.0 ATM (1.013X105 Pa). The system is heated t
leonid [27]

Answer:

1.27 atm is the final pressure of the oxygen in the flask (with the stopcock closed).

2.6592 grams of oxygen remain in the flask.

Explanation:

Volume of the flask remains constant = V = 2.0 L

Initial pressure of the oxygen gas = P_1=1.0 atm

Initial temperature of the oxygen gas = T_1=20^oC =293.15 K

Final pressure of the oxygen gas = P_2=?

Final temperature of the oxygen gas = T_2=100^oC =373.15 K

Using Gay Lussac's law:

\frac{P_1}{T_1}=\frac{P_2}{T_2}

P_2=\frac{P_1\times T_2}{T_1}=\frac{1 atm\times 373.15 K}{293.15 K}=1.27 atm

1.27 atm is the final pressure of the oxygen in the flask (with the stopcock closed).

Moles of oxygen gas = n

P_1V_1=nRT_1 (ideal gas equation)

n=\frac{P_1V_1}{RT_1}=\frac{1 atm\times 2.0 L}{0.0821 atm l/mol K\times 293.15 K}=0.08310 mol

Mass of 0.08310 moles of oxygen gas:

0.08310 mol × 32 g/mol = 2.6592 g

2.6592 grams of oxygen remain in the flask.

6 0
3 years ago
In which spear does the dolphins swim A atmosphere B Lithosphere C magnetosphere D hydrosphere
arlik [135]
Hydrosphere because it is water and water is where the dolphins swim. 
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4 years ago
Using salt (NaCl)<br> as an<br> example-how are elements &amp; compounds different?
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What element in period 4 has the lowest ionization energy? noble gas, alkali metal, halogen or alkaline earth metal?
Gwar [14]

Answer:

alkali metal

Explanation:

The alkali metals in period 4 will have the lowest ionization energy of the elements in the period.

Across a period ionization energy increases progressively from left to right due to decreasing atomic radii caused by the increasing nuclear charge which is not compensated for by successive electronic shells.

  • Ionization energy is the energy needed to remove the most loosely bound electrons of an atom in the gas phase in the ground state.
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Down a group, it decreases.

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