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My name is Ann [436]
3 years ago
8

A solid sample of a compound a liquid sample of the same compound are each tested for elecrical conductivity.Which test conclusi

on indicates that the compound is ionic?
Chemistry
1 answer:
nignag [31]3 years ago
4 0
  • An ionic compound will not conduct electricity as a solid.
  • It will conduct electricity when melted.
  • Some ionic compounds are soluble. Their solutions in water also conduct electricity.
<h3>Explanation</h3>

A substance should contain charged particles that are free to move around in order to conduct electricity.

Ionic compounds contain an ocean of ions. They carry either positive or negative charges. Attractions between them hold them in a rigid lattice under the solid state. Those ions are unable to move. The ionic compound can't conduct electricity.

Melting the ionic compound will break the lattice. Those ions are now free to move to conduct electricity. Dissolving the compound in water will also free the ions. As a result, those solutions will also conduct electricity.

Conductivity under different states distinguishes between ionic compounds, molecular compounds, and metals.

  • Ionic compounds conduct electricity when melted but not as a solid.
  • Molecular compounds have no charged particles. They do not conduct electricity even when melted.
  • Valence electrons in metals are free to move both when the metal is a solid and when it is melted. Metals conduct electricity under both solid and liquid states.
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How does a substances temperature change when the average kinetic energy of its particles increases ? When the average kinetic e
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Answer:

The temperature of a substance when the average kinetic energy of its particles increases and decreases when the average kinetic energy decreases.

Explanation:

Atoms and molecules are in constant motion. Kinetic energy is a form of energy, known as energy of motion. Kinetic energy is a form of energy, known as energy of motion. The kinetic energy of an object is that which is produced due to its movements, which depends on its mass (m) and speed (v).

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So, since temperature is a measure of the speed with which they move, the higher the temperature the faster they move.

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8 0
3 years ago
How do the process of crabon cycle contribute to climate change.​
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3 years ago
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1 year ago
The balanced equation for water is 2 H2 + O2 to 2 H2O. If I have 21.2g of a product , and I started with 5.6 g of H2, how many g
ANTONII [103]

Since 21.2 g H2O was produced, the amount of oxygen that reacted can be obtained using stoichiometry. The balanced equation was given:  2H₂ + O₂ → 2H₂O and the molar masses of the relevant species are also listed below. Thus, the following equation is used to determine the amount of oxygen consumed.

Molar mass of H2O = 18 g/mol

Molar mass of O2 = 32 g/mol

21.2 g H20 x 1 mol H2O/ 18 g H2O x 1 mol O2/ 2 mol H2O x 32 g O2/ 1 mol O2 = 18.8444 g O2

<span>We then determine that 18.84 g of O2 reacted to form 21.2 g H2O based on stoichiometry. It is important to note that we do not need to consider the amount of H2 since we can derive the amount of O2 from the product. Additionally, the amount of H2 is in excess in the reaction.</span>

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3 years ago
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