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Gnesinka [82]
4 years ago
10

Salt compounds are composed of ions that form a tightly packed and ordered network, which is called a crystal lattice, and it is

held together by
Chemistry
1 answer:
Genrish500 [490]4 years ago
7 0
<span>Salt compounds are composed of ions that form a tightly packed and ordered network, which is called a crystal lattice. It is held together by electrostatic forces known as ionic bonding. Ionic bonding refers to the chemical bond between two oppositely charged ions - a cation and an anion. This type of bond forms when there is a large electronegativity difference between two atoms. </span>
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Which of the following CANNOT be classified as a substance? a. table salt c. nitrogen b. air d. gold
Alex777 [14]

Answer:

B.Air is not a substance

4 0
4 years ago
How many 1-cm cubes would it take to construct a cube that is 4 cm on edge? Express your answer using two significant figures.
Firlakuza [10]

Answer:

It would take 64 1-cm cubes to construct a 4-cm cube.

Explanation:

The volume of a cube is equal to the edge raised to the power of 3.

A 1-cm edge cube has a volume of V₁ = (1 cm)³= 1 cm³

A 4-cm edge cube has a volume of V₄ = (4 cm)³= 64 cm³

The number of small cubes required to fill the same volume than the big cube is:

\frac{V_{4}}{V_{1}} =\frac{64 cm^{3} }{1cm^{3} } =64

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4 years ago
Equal amounts of N2 and O2 are added, under certain conditions, to a closed container. Which changes occur in the reverse reacti
geniusboy [140]
1) The forward reaction is N2 (g) + O2 (g)  → 2NO

(that reaction requires special contitions because at normal pressures and temperatures N2 and O2 do not react to form another compound.

2) The equiblibrium equation is

  N2 (g) + O2 (g)  ⇄ 2NO

3) Then, the reverse reaction is

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Answer: 2NO → N2(g) + O2(g)
4 0
3 years ago
What is the volume of a liquid that has a density 3.65g/ml and a mass of 5.61g
Lorico [155]

Answer:

<h2>1.54 mL</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density} \\

From the question we have

volume =  \frac{5.61}{3.65}  \\  =1.536986...

We have the final answer as

<h3>1.54 mL</h3>

Hope this helps you

3 0
3 years ago
What does expunge mean?
trasher [3.6K]

It means is where something is removed or erased completely or something unwanted or unpleasant.


Hope this helps and the right meaning of expunge.

3 0
3 years ago
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