For each part of this question a property of a solution is given. Based upon the
ID: 529956 • Letter: F
Question
For each part of this question a property of a solution is given. Based upon the listed property, identify each as an acidic or basic solution.
Turns blue litmus paper red.
Has a pH of 12.4 .
Feels slippery.
Has a tart or sour taste.
Turns red litmus paper blue.
Has a pH of 3.1 .
Reacts with active metals such as zinc and magnesium.
Identify each of the following as acidic, basic or neutral.
Lemon juice
Caustic soda
Battery Acid (sulfuric acid)
Borax
Milk of magnesia
Vinegar
HNO3
HF
Vitamin C
Soap
Read each of the following descriptions and identify each as an element, compound, heterogeneous mixture, or homogeneous mixture.
Air
A stainless steel fork
Molten iron
Trail mix
Distilled water
Salt water
Explanation / Answer
For each part of this question a property of a solution is given. Based upon the listed property, identify each as an acidic or basic solution.
Turns blue litmus paper red. Only acids turn into red
Has a pH of 12.4 .since pH > 7, then this is basic
Feels slippery. Typically, bases will feel slippery
Has a tart or sour taste. if sour, it is acidic,
Turns red litmus paper blue. --> only bases turn into blue
Has a pH of 3.1 . This is pH < 7, therefore acidic
Reacts with active metals such as zinc and magnesium. H+ ions will react readily, so acidic
Identify each of the following as acidic, basic or neutral.
Lemon juice = acidic, due to citric acid
Caustic soda = basic, since OH- is high
Battery Acid (sulfuric acid) --> this is acidic, as stated by sulfuric acid
Borax --> This is basic, will form OH- ions
Milk of magnesia -- >this is rich in Mg(OH)2, therefore, basic
Vinegar --> acidic, acutally acetic acid
HNO3 --> strong acid, nitric acidHF
Vitamin C --> this is acidic, scorbic acid
Soap --> this is basic, high pH
Read each of the following descriptions and identify each as an element, compound, heterogeneous mixture, or homogeneous mixture.
Air --> homogeneous mix, since you need chemical processes to separate them
A stainless steel fork --> homogeneus mix, has plenty of iron and other metals to increase stainless property
Molten iron --> element, Fe(l)
Trail mix --> heterogeneous mix, you can see plenty of substance in it, will not mix in one phase
Distilled water --> compound/puer substance
Salt water --> this is an homogeneous mix, salt and water are in one phase
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