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The pH scale has values ranging from 0-14. A substance with pH between 0-6 is considered as an acid, one with pH 7 is considered neutral while substances with pH in range 8-14 are considered as bases.
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How is science used in the forensic science industry?
by using DNA, using the pH scale to see acids or alkalis
What safety equipment must you use when using acids and alkalis?
goggles, pipettes, beaker, test tube, test tube holder
Examples of acids and alkalis?
An acid is a substance which reacts with a base. Commonly, acids can be identified as tasting sour, reacting with metals such as calcium and bases like sodium carbonate Aqueous acids have a pH of less than 7, where an acid of lower pH is typically stronger. Chemicals or substances having the property of an acid are said to be acidic.
WHAT ACIDS and alkalis are in treatment of soil?
Well alkalies can be used when acid rain falls on farmland, a limestone powder is put over the field to neutralise the acid.
How do you separate amino acids from fatty acids?
Amino acids are soluble in water and fatty acids are not.
How can you tell how strong acids and alkalis are using the pH scale?
Acids have a pH under 7, alkalis have a pH bigger than 7.
How is science used in the forensic science industry?
by using DNA, using the pH scale to see acids or alkalis
What three things should you always do when using acids or alkalis in the labrotory?
put safety glasses on
What safety equipment must you use when using acids and alkalis?
goggles, pipettes, beaker, test tube, test tube holder
How were alkalis first manufactured on a large scale?
Alkalis were first manufactured on a large scale as Sodium Carbonate in the 1700s using "The LeBlanc Process." This process mixed Sodium Chloride with Sulfuric Acid and then heated with charcoal and limestone. Byproducts included toxic gases Hydrogen Chloride and Hydrogen Sulfide.
Examples of acids and alkalis?
An acid is a substance which reacts with a base. Commonly, acids can be identified as tasting sour, reacting with metals such as calcium and bases like sodium carbonate Aqueous acids have a pH of less than 7, where an acid of lower pH is typically stronger. Chemicals or substances having the property of an acid are said to be acidic.
Definition of numerical data?
Numerical data is data measured or identified on a numerical scale. Numerical can be analyzed using statistical methods, and results can be displayed using tables, charts, histograms, and graphs.
How do you describe an experiment that allows you to disguish between an acid and alkali without using any indicators?
Acids will react with carbonates to produce a gas (CO2), alkalis won't.Acids will react with magnesium or any active metal but Mg is fast, alkalis won't. An acid + active metal produces hydrogen gas.Acids will clean a coin, alkalis won't.Alkalis feel slimy but acids don't. Only try this if the alkali and acid are diluted with water, and you wash your hands well afterwards.In summary:Acid + Carbonate --> Salt + Carbon dioxide + WaterAcid + Active Metal --> Salt + Hydrogen
Bases create a sour taste in your mouth?
If I remember right bases are a neutral flavor while acids are sour by using the PH Scale.
When should ipecac not be used for poisoning?
Using ipecac can make certain kinds of poisoning worse and should not be used to treat strychnine, alkalis, strong acids, kerosene, fuel oil, gasoline, coal oil, paint thinner, cleaning fluid poisoning.
How can you neutralise acids?
Acids can be neutralized using bases.
Are rows identified using numbers in Excel 2010?
Yes. Rows are identified with numbers. Columns are identified with letters.
