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Ivanshal [37]
2 years ago
15

.

Chemistry
2 answers:
DaniilM [7]2 years ago
7 0
The right option is C their force is not at its peak in the middle of the magnet
Debora [2.8K]2 years ago
4 0

Explanation:

Their force of attraction is strongest in the middle of the magnet.

You might be interested in
12.
Veronika [31]

Answer:

Nonbonding pairs of electrons.

Explanation:

Both oxygen atoms in the diatomic molecule have two nonbonding pairs. This results in the oxygen molecule having a planar geometric shape. This is because nonbonding pairs repel each other are significant in determining the shape of a molecule.

3 0
3 years ago
Read 2 more answers
5. 16.3 g of NaCl is dissolved in water to make 1.75 L of solution. What is the molarity of this solution? A 0.159 M B 0.278 M C
ira [324]

Answer: The molarity of this solution is 0.159 M.

Explanation:

Given: Mass of solute = 16.3 g

Volume = 1.75 L

Number of moles is defined as the mass of substance divided by its molar mass.

Hence, moles of NaCl (molar mass = 58.44 g/mol) ar calculated as follows.

Moles = \frac{mass}{molar mass}\\= \frac{16.3 g}{58.44 g/mol}\\= 0.278 mol

Molarity is the number of moles of a substance present in a liter of solution.

So, molarity of the given solution is calculated as follows.

Molarity = \frac{no. of moles}{Volume (in L)}\\= \frac{0.278 mol}{1.75}\\= 0.159 M

Thus, we can conclude that the molarity of this solution is 0.159 M.

5 0
3 years ago
What is the oxidation number for S in the compound SO3? (Recall that O has an oxidation number of –2.) A. 0
Snezhnost [94]

Answer:

\boxed {\boxed {\sf +6}}

Explanation:

A compound must have a net charge of 0. The charges have to balance each other out and equal 0.

We have the compound sulfur trioxide with a chemical formula of SO₃.

Oxygen (O) has an oxidation state of -2, which means it will have a charge of -2 in the compound. However, note there is a subscript after the O in the chemical formula. Therefore, there are 3 oxygen atoms in the compound and each one has a charge of -2. The oxygen has an overall charge of -6 because 3*-2 = -6.

There is only one atom of sulfur (there is no subscript, so a 1 is implied). It has to balance out the -6 charge of the oxygen atoms, so it must be +6.

The oxidation number for sulfur is +6 in the compound sulfur trioxide.

4 0
3 years ago
Read 2 more answers
Which wil be the lower number Atomic Number of Atomic Mass?
goblinko [34]

Answer:

atomic mass

Explanation:

4 0
3 years ago
Read 2 more answers
What is the common name of the ether that has the following structure? H3C----O-----CH2CH3
fomenos

Answer:

Ethyl methyl ether.

Explanation:

  • The mono ether is named commonly by <em>dividing the molecule into two parts, writing them in alphabetical order, and adding ether in the end of the name.</em>
  • In this compound; we have two parts CH₃ (methyl) and CH₃CH₂ (ethyl).

So, it is named ethyl methyl ether.

  • The IUPAC name of this name is Methoxyethane.
4 0
3 years ago
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