Which best describes a precipitate in a chemical reaction?

Which describes a precipitate in a chemical reaction? D.A solid product formed from aqueous reactants. Which chemical reaction involves the production of a gas?

Which is a characteristic of a weak electrolyte quizlet?

A weak electrolyte partially dissociates or ionizes in water. A nonelectrolyte does not dissociate or ionize in water. A strong electrolyte conducts electricity well. A weak electrolyte conducts electricity poorly.

Which chemical reaction involves the production of a gas quizlet?

1. A combustion reaction involves oxygen gas and oftentimes produces water and carbon dioxide. They release energy as a product in the form of heat or light.

What is a characteristic of a Nonelectrolyte?

A nonelectrolyte is a substance that does not exist in an ionic form in aqueous solution. Nonelectrolytes tend to be poor electrical conductors and don’t readily dissociate into ions when melted or dissolved. Solutions of nonelectrolytes do not conduct electricity.

Which best describes a precipitate?

In chemistry, a precipitate is an insoluble solid that emerges from a liquid solution. The emergence of the insoluble solid from solution is called precipitation. Often the precipitate emerges as a suspension. Precipitates can also form when the temperature of a solution is lowered.

How do you tell if a reaction will form a precipitate?

If the rules state that an ion is soluble, then it remains in its aqueous ion form. If an ion is insoluble based on the solubility rules, then it forms a solid with an ion from the other reactant. If all the ions in a reaction are shown to be soluble, then no precipitation reaction occurs.

What is the defining characteristic of electrolytes?

electrolyte, in chemistry and physics, substance that conducts electric current as a result of a dissociation into positively and negatively charged particles called ions, which migrate toward and ordinarily are discharged at the negative and positive terminals (cathode and anode) of an electric circuit, respectively.

Which of the following are weak electrolytes quizlet?

– Most acids are weak electrolytes. However, HCl, HBr, HI, HNO3, H2SO4, HClO3, and HClO4 are strong acids and strong electrolytes. – The common strong bases are the hydroxides of the alkali metals and the heavy alkaline earths (Ca(OH)2, Ba(OH)2, and Sr(OH)2) . Ammonia, NH3, is a weak electrolyte.

What chemical reaction involves the production of a gas?

Combustion is a high-temperature exothermic (heat releasing) redox (oxygen adding) chemical reaction between a fuel and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke.

How is gas produced in a chemical reaction?

The formation of a gas is the third sign that a reaction may have occurred. The formation of bubbles when two liquids are mixed usually indicates that a gas has formed. A gas can also be formed when a solid is added to a solution. Continue on to the next sign.

Is salt a Nonelectrolyte?

For these nonelectrolytes no current would flow through our experimental conductivity circuit. Some everyday examples of strong and weak electrolytes are table salt (sodium chloride) and vinegar (dilute acetic acid), respectively. In comparison, sugar (sucrose) is an example of a nonelectrolyte.

What are electrolytes write their characteristics?

An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water. The dissolved electrolyte separates into cations and anions, which disperse uniformly through the solvent. Electrically, such a solution is neutral.