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3 years ago

Which of the following lists describes characteristics of an acid?

1 answer:

Studentka2010 [4]3 years ago

4 0

Answer: Acids have a sour taste. Lemons, vinegar, and sour candies all contain acids. Acids change the color of certain acid-base indicators. Two common indicators are litmus and phenolphthalein. This are som Characteristics of acid.

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What is the number of electrons in the outermost energy level of an oxygen atom

Romashka [77]

6 Is the answer. hope you pass

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3 years ago

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Again help. (3)to power negative 3 × (1/3)to power negative 5 ×(1/3) to the power negative 2

mr Goodwill [35]

Answer:

3-³ x (1/3)^-5 x (1/3)-²

Applying Indices

3^-3 x (3-¹)^-5 x (3-¹)^-2

When the negative signs interact

they become positive

We now have

3^-3 x 3^5 x 3^2

= 3^-3 x 3^7

=3⁴.

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3 years ago

Why is it harder to remove an electron from fluorine than from carbon?

tatuchka [14]

The valence electrons of both fluorine and carbon are found at about the same distance from their respective nuclei but the greater positive charge of the fluorine nucleus attracts its valence electrons more strongly.

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3 years ago

Find the mass percentage of water in ZnSO4 · 7H20 PLEASE HELP

netineya [11]

Answer:

Hello, I can help!

Explanation:

Molecular Formula: ZnSO4. 7H2O or H14O11SZn

Molecular Weight: 287.6 g/mol

<h2>Computing molar mass (molar weight)</h2>

Functional groups: D, Ph, Me, Et, Bu, AcAc, For, Ts, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg

Common compound names.

Examples of molar mass computations: NaCl, Ca(OH)2, K4[Fe(CN)6], CuSO4*5H2O, water, nitric acid, potassium permanganate, ethanol, fructose.

-Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)

-Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.

God bless you!

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3 years ago

suppose the mass spectrum of a hypothetical monatomic element X contains a signal at mass number 13 and another of identical hei

Illusion [34]

Average the numbers 13 and 15 to get 14amu.

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3 years ago