Answer:
Explanation:
A1. Chemical indicator, any substance that gives a visible sign, usually by a colour change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution. An example is the substance called methyl yellow, which imparts a yellow colour to an alkaline solution.
A2. The reaction of an acid with a base is called a neutralization reaction. The products of this reaction are a salt and water. ... For example, the reaction of hydrochloric acid, HCl, with sodium hydroxide, NaOH, solutions produces a solution of sodium chloride, NaCl, and some additional water molecules
A3. Methyl orange has the property to color alkaline and neutral water yellow. If the water becomes acidic, it turns red immediately.
Potassium carbonate<span> (K</span>2CO3<span>) is a white salt, </span>soluble in water<span> (</span>insoluble<span> in ethanol) which forms a strongly alkaline solution. </span>
Answer:
Option (2)
Explanation:
The two compounds formed will be AgCl and NaNO₃.
We can see that this will result in a balanced equation, so the answer is Option (2).
Answer:
correct answer is precipitation and evaporation
Explanation:
solution
correct answer is precipitation and evaporation because in the evaporation process of water cycle, the atmosphere is directly interact with the hydrosphere as water changes from liquid into vapor or gas form
and Precipitation is the process when water that may be in the form of snow or hail or rain etc that is fall from the cloud into the open sky
so correct answer is precipitation and evaporation
Answer:
Nucleic acids
Explanation:
Nucleic acids, macromolecules made out of units called nucleotides, come in two naturally occurring varieties: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material found in living organisms, all the way from single-celled bacteria to multicellular mammals like you and me.
