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frez [133]
2 years ago
6

Which is the reason that ionic compounds are brittle? The bonds between the anions and cations are weak and therefore easily bro

ken. A strong repulsive force is created when cations suddenly align. They involve positive metal ions in a sea of delocalized electrons. They share electrons, which makes the bond brittle.
Chemistry
1 answer:
bearhunter [10]2 years ago
8 1
Well ionic compounds are brittle because similar charges repel, which causes them to break usually occurring when a force is applied, like a hammer strike. 
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Answer:

Investigation B, Step 2

Explanation:

The <em>colour change</em> is a good indication of a <em>chemical change</em>. The sugar molecules were most likely changing into something else.

Investigation A, Step 1. <em>Wron</em>g. The dissolving of salt is a <em>physica</em>l process.

Investigation A, Step 2. <em>Wrong</em>. You simply boiled off the water (a <em>physical</em> process) and recovered the salt.

Investigation B, Step 1. <em>Wrong</em>. The dissolving of sugar is a <em>physical</em> process.

4 0
3 years ago
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5. What volume of silver metal will weigh exactly 4500.0 g. The density of silver is 20.5 g/cm.
Vitek1552 [10]

Answer:

The answer is

<h2>219.5 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

mass = 4500 g

density = 20.5 g/cm³

We have

volume =  \frac{4500 }{20.5}  \\  = 219.51219...

We have the final answer as

<h3>219.51 mL</h3>

Hope this helps you

8 0
2 years ago
What periodic trends exist for electronegativity?
Anna007 [38]
The highest electronegativity is in the elements in the top left corner of the periodic table, and the lowest in the bottom right corner. Therefore, traveling up or to the left across the periodic table will increase the electronegativity 
5 0
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Gasoline and motor oil are chemically similar. They are both mixtures of nonpolar hydrocarbons
Softa [21]

Answer:

motor oil

Explanation:

According to Oxford dictionary, viscosity refers to ''a quantity expressing the magnitude of internal friction in a fluid, as measured by the force per unit area resisting uniform flow.''

The higher the molecular weight of a substance, the greater its viscosity. This is because, the long chains in the viscous substance become entangled thereby increasing the internal friction in the liquid.

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What is the area on the earth's surface directly above where an earthquake originates?
Natalija [7]

Answer:

The epicenter

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