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3 years ago

Identify any three acids. Identify any three bases.

1 answer:

s2008m [1.1K]3 years ago

3 0

Acids:
Sulfuric acid, hydrochloric acid, nitric acid,

Bases:
Potassium hydroxide (KOH)
Sodium hydroxide (NaOH)
Barium hydroxide (Ba(OH)2)

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2 years ago

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3 years ago

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Can someone tell me what is an ore?

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3 years ago

How are ionic bonds formed and what is the attractive force within an ionic bond

Akimi4 [234]

Answer and Explanation:

How are ionic bonds formed?

Ionic bonds are formed as a result of a redox reaction.

Formation of cations: In which atoms of an element (metal) with low ionization energy give some electrons to reach stable electronic configuration.

Formation of anions: in which atoms of another element with high electron affinity accepts electrons to achieve a stable electronic configuration.

Example: NaCl, the sodium atoms loss electron forming Na⁺ and the chlorine atoms gain electron forming Cl⁻, then the ions are attracted to each other with 1:1 ration forming the ionic compound NaCl.

Na + Cl → Na⁺ + Cl⁻ → NaCl

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3 years ago

Ethanol has the chemical formula C2 H6 O . A sample of ethanol contains 164grams of C. How many molecules are in the sample? (4.

baherus [9]

Answer:

We have 8.22 * 10^24 C atoms

We have 4.11 * 10^24 ethanol molecules

Explanation:

Step 1: Data given

Molecular formula of ethanol = C2H6O

Mass of C = 164 grams

Molar mass C = 12.01 g/mol

Step 2: Calculate moles C

Moles C = mass C / molar mass C

Moles C = 164 grams / 12.01 g/mol

Moles C = 13.66 moles

Step 3: Calculate molecules of C

Atoms C = moles C * number of Avogadro

Atoms C = 13.66 moles * 6.02 * 10^23 molecules/ mol

Atoms C = 8.22 * 10^24 C atoms

Step 4: Calculate molecules in the sample

For 1 mol C2H6O we have 2 moles C

For 13.66 moles C we have 13.66/ 2 = 6.83 moles C2H6O

Molecules C2H6O = 6.83 moles * 6.02 * 10^23 = 4.11 *10 ^24 molecules

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3 years ago