Many salts are also ionic compounds.
H2S positive typically means that hydrogen sulfide gas has been detected. This gas is usually associated with sulfur compounds in the environment and can have a distinctive "rotten egg" smell. In a laboratory setting, a positive H2S test could signify the presence of certain bacteria that produce hydrogen sulfide.
Acids produce H+ ions when added to water. This H+ combine with Water H2Omolecules to form Hydronium H3O+ ions
Ionic compounds produce electrolytes; covalent compounds not.
Streptomyces bacteria are typically catalase positive, meaning they produce the enzyme catalase which breaks down hydrogen peroxide into water and oxygen. This results in the formation of bubbles or effervescence when hydrogen peroxide is added to a culture of Streptomyces.
Yes, Pseudomonas fluorescens is catalase positive. This means that it is able to produce the enzyme catalase, which breaks down hydrogen peroxide into water and oxygen, causing bubbling or gas production. This can be observed when a bacterial colony is tested with hydrogen peroxide.
Hydrogen ions.
Ionic compounds are made up of positive and negative ions. When these compounds are dissolved in water, the ions separate and dissociate. Fluoride is a negatively charged ion that can be found in some ionic compounds like sodium fluoride (NaF). When these compounds are dissolved in water, fluoride ions are released, resulting in the presence of fluoride in the water.
Arrhenius defined acids as compounds that ionize in water to produce hydrogen ions (H+).
Arrhenius bases produce OH- ions by definition when dissolved in water. A Bronsted - Lowry base can produce OH- ions, but only has to produce a proton accepting group by definition. A Lewis base is defined as an electron donating group, which hydroxide ion is. So, basic compounds do produce OH- ions when dissolved in water, but not in all cases.
A salt
Acids produce hydrogen ions (H+) when dissolved in water. This is what gives acids their characteristic sour taste and ability to react with bases.
In aqueous solutions, hydrochloric acid (HCl) dissociates into hydrogen ions (H+) and chloride ions (Cl-). The hydrogen ion (H+) is positively charged because it has lost an electron, leaving it with a net positive charge.
H2S positive typically means that hydrogen sulfide gas has been detected. This gas is usually associated with sulfur compounds in the environment and can have a distinctive "rotten egg" smell. In a laboratory setting, a positive H2S test could signify the presence of certain bacteria that produce hydrogen sulfide.
Those compounds produce hydrogen (gas).
Salts produce (metallic) positive catIONS and negative anIONS (of non-metals)
Yes, when hydrogen chloride (HCl) is dissolved in water, it dissociates into hydronium ions (H3O+) and chloride ions (Cl-) to produce an acidic solution.
Hydrogen is most commonly used commercially to produce hydrocarbons organic compounds such as sodium hydroxide (NaOH).