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3 years ago

Select the words that correctly fill in the blanks for this statement:

Chemistry

2 answers:

Lera25 [3.4K]3 years ago

8 0

The correct answer is option A. Three, dumbbell.

The p sublevel has __three_orbitals that are _dunmbbell_-shaped.

The three orbitals of the p sublevel are oriented in three directions along the x, y and Z axis. The orbitals are called px, py and pz. Each p orbital can have a maximum of 2 electrons. Since there are three p orbitals, the p sublevel can have a maximum of 6 electrons.

san4es73 [151]3 years ago

5 0

Answer : The correct option is, three, dumbbell.

Explanation :

As we know that there are many sub-levels which are s, p, d, f, g and so on. The sub-level are oriented in three directions along the x, y and z axis.

The 's' sub-level has one orbital that are spherically shaped.

The 'p' sub-level has three orbitals $(p_x,p_y,p_z)$ that are dumbbell shaped.

The 'd' sub-level has five orbitals $(d_{xy},d_{xz},d_{yz}d_{z^2},d_{x^2-y^2})$ that are double-dumbbell shaped.

The 'f' sub-level has seven orbitals $(f_{x(x^2-3y^2)},f_{y(x^2-3z^2)},f_{y(3x^2-3y^2)},f_{xz^2},f_{z^3},f_{yz^2},f_{xyz})$ that are complex flower shaped.

Hence, the 'p' sub-level has three orbitals that are dumbbell shaped.

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3 years ago

The permanent electric dipole moment of the water molecule 1H2O2 is 6.2 * 10-30 C m. What is the maximum possible torque on a wa

stellarik [79]

Answer:

3.1 x 10⁻²¹ Nm

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When placed in an external electric filed, an electric dipole experiences a torque. and this torque is represented mathematically with the equation:

torque (τ) = dipole moment vector (P) x electric field vector (E)

τ = P. E . sin θ

where θ is the angle between the water molecule and the electric field, which in this case is 90° (because this is where the torque is maximum)

τ = 6.2x10⁻³⁰Cm . 5.0x10⁸ N/C . sin90

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3 years ago

When 2.5 mol of O2 are consumed in their reaction, ________ mol of CO2 are produced

Vika [28.1K]

The given question is incomplete. The complete question is:

The combustion of propane (C3H8) in the presence of excess oxygen yields $CO_2$ and $H_2O$

$C_3H_8(g)+5O_2 (g)\rightarrow 3CO_2(g)+4H_2O (g)$

When only 2.5 mol of $O_2$ are consumed in order to complete the reaction, ________ mol of $CO_2$ are produced.

Answer: Thus when 2.5 mol of $O_2$ are consumed in their reaction, 1.5 mol of $CO_2$ are produced

Explanation:

The balanced chemical equation is:

$C_3H_8(g)+5O_2 (g)\rightarrow 3CO_2(g)+4H_2O (g)$

According to stoichiometry :

5 moles of $O_2$ produce = 3 moles of $CO_2$

Thus 2.5 moles of $O_2$ will produce = $\frac{3}{5}\times 2.5=1.5$ moles of $CO_2$

Thus when 2.5 mol of $O_2$ are consumed in their reaction, 1.5 mol of $CO_2$ are produced

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2 years ago