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What does H2s positive mean?
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.
What produces hydrogen ions as the only positive ions in aqueous solution?
Acids produce H+ ions when added to water. This H+ combine with Water H2Omolecules to form Hydronium H3O+ ions
what type of compounds produce electrolytes and which produce non-electrolytes?
Ionic compounds produce electrolytes; covalent compounds not.
What is the result of catalase test for streptomyces?
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.
Is p fluorescens catalase positive?
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.
What do acids produce when dissolved in waters?
Hydrogen ions.
Why only ionic compounds would produce fluoride in water?
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?
Arrhenius defined acids as compounds that ionize in water to produce hydrogen ions (H+).
Do basic compounds produce OH- ions when dissolved in water?
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.
What compounds that produce ions other than hydrogen or hydroxide?
A salt
What ion does acid produce when dissolved in water?
Acids produce hydrogen ions (H+) when dissolved in water. This is what gives acids their characteristic sour taste and ability to react with bases.
Why does HCl produce positive hydrogen ions?
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.
What does H2s positive mean?
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.
What gas would you get if you mixed hydrochloric acid with calcium?
Those compounds produce hydrogen (gas).
What kind of compounds produce ions in solution?
Salts produce (metallic) positive catIONS and negative anIONS (of non-metals)
Will HCl produce an acidic solution when dissolved in water?
Yes, when hydrogen chloride (HCl) is dissolved in water, it dissociates into hydronium ions (H3O+) and chloride ions (Cl-) to produce an acidic solution.
What is hydrogen is most commonly used commercially for?
Hydrogen is most commonly used commercially to produce hydrocarbons organic compounds such as sodium hydroxide (NaOH).
