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Gnoma [55]
2 years ago
6

A book sits motionless on a table. Which statement is true? Group of answer choices There are no forces acting on the book. The

forces acting on the book are balanced by each other. The upward force is greater than the downward force on the book. The downward force is greater than the upward force on the book
Chemistry
1 answer:
Katena32 [7]2 years ago
6 0

Answer:

The forces acting on the book are balanced by each other.

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The Valence Electrons of an Atom of Which Element would feel a Greater Effective Nuclear Charge than the Valence?
kumpel [21]
The effective nuclear charge is an innate property of a specific element. It is the pull of force that an electron feels from the nucleus. It is related to the valence electron by the equation: Z* = Z-S, where Z* is the effective nuclear charge, Z is the atomic number and S is the shielding constant.

For the following elements in the choices, these are their values of Z*:

Aluminum - +12.591
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The effective nuclear charge of Boron is +3. Thus, the answers are  Aluminum and Carbon.
5 0
3 years ago
Predict the products for the following equation.
coldgirl [10]

Answer: AgCl + Fe

Explanation:

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A general single displacement reaction can be represented as :

XY+Z\rightarrow XZ+Y

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6 0
2 years ago
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vichka [17]
This is just addition. Put 2140.56 on top, line up 9.3456 under it appropriately. Doing this will give you the answer: 2149.9056
5 0
3 years ago
When studying atoms, scientists can ignore the
vekshin1

When studying atoms, scientists can ignore <u>the Gravitational</u> force between charged particles that make up  the atoms because it is many millions of times smaller than other forces in the atom.

Explanation:

Scientists can ignore the gravitational force because the gravitational force is considered to be negligible as compared to the other forces due to its smaller value.We all know that the gravitational force is directly proportional to the mass of an object which  result in  a small force value.When the value of this small force is compared to the value of the electrical force between protons and electrons in atoms the we can say that the electrical force is million times stronger than the gravitational force

Thus we can say that scientists can ignore <u>the Gravitational</u> force between charged particles that make up  the atoms because it is many millions of times smaller than other forces in the atom.

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Brums [2.3K]
Because it's protected from air because air makes it turn brown.
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