Chemistry, 06.01.2020 09:31 Elijah7934

Which of the following lists describes characteristics of a base

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Bitter taste (opposed to sour taste of acids)...

Slimy, or soapy feel on fingers (Slippery)
Many bases react with acids and precipitate salts
Strong bases may react violently with acids. An acid spill can be safely neutralised by using a mild base
Bases turn red litmus paper blue
Bases are substances that contain metal oxides or hydroxides
Bases which are soluble in water form alkalis (soluble bases)

Answer from: sarah1tice

The answer is bitter taste, high pH and caustic.

Explanation:

The bases have a bitter taste, paint the litmus blue and have a soapy touch. When combined with a solution of an acid, a neutralization reaction occurs. Water and salt are formed in this reaction. If the pH is between 7 and 14, it is called basic. An example is caustic soda, with a pH of 12, which has great corrosive power.

Answer from: Quest

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and conduct electricity easily while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

Answer from: Quest

Mass is the amount of matter in an object. weight is the measurement of the pull of gravity on an object. say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165) now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon. however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant. in conclusion it is possible for your weight to change as your mass remains constant.

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Which of the following lists describes characteristics of a base...