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3 years ago

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

Makovka662 [10]

Hope this helps you!

8 0

3 years ago

Read 2 more answers

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.

4 0

4 years ago

Using salt (NaCl)<br> as an<br> example-how are elements & compounds different?

Tomtit [17]

Both salt and sugar have radically different properties (both ... known as table salt, is an ionic compound with the chemical formula NaCl, ...

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2 years ago

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.
The measure of the readiness of an atom to lose an electron is the ionization energy.

Down a group, it decreases.

8 0

3 years ago