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kondaur [170]
2 years ago
12

Based on the number of valence electrons indicated by its location in the periodic table ,which elements behavior would you pred

ict to be closest to that of potassium (k)
Chemistry
1 answer:
adelina 88 [10]2 years ago
4 0

Answer:

Na sodium or Rb rubidium

Explanation:

Because Na is present in first group all members of group 1 have 1 electron in valence shell and show similar properties.

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Counting gives an exact number and exact numbers have infinite sig figs.
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Which best describes how water's movement affects landforms? Select one 0 Mechanical weathering by water causes rock to break do
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4 0
3 years ago
A certain flexible weather balloon contains 7.4 L of helium gas. Initially, the balloon is in WP at 8500ft, where the temperatur
Free_Kalibri [48]
<h2>The new volume of the balloon at the top of Pikes Peak is 10.2 L</h2>

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas = 577.0 torr

P_2 = final pressure of gas = 400 torr

V_1 = initial volume of gas = 7.4 L

V_2 = final volume of gas = ?

T_1 = initial temperature of gas = 20.6^oC=273+20.6=293.6K

T_2 = final temperature of gas = 7.5^oC=273+7.5=280.5K

Now put all the given values in the above equation, we get:

\frac{577.0\times 7.4}{293.6K}=\frac{400.0\times V_2}{280.5K}

V_2=10.2L

Thus the new volume of the balloon at the top of Pikes Peak is 10.2 L

Learn more about combined gas law

brainly.com/question/12089296

brainly.com/question/4133756

3 0
3 years ago
Помогите пожалуйста или с первым вопросом или со вторым. Буду очень благодарна, т.к. это мой зачет... :С
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3 years ago
What could you predict about a methane molecule that would most likely be made by using both the quantum model of the atom and J
Svetlanka [38]
By using the quantum model of the atom and John Dalton's model you can predict that the methane molecule will most likely be made up of Hydrogen and Carbon.
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3 years ago
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