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3 years ago

an ionic compound is typically made of a. two metals. b. two nonmetals. c. a metal and a nonmetal. d. none of the above.

Chemistry

2 answers:

kirill115 [55]3 years ago

6 0

C. a metal and a nonmetal

sesenic [268]3 years ago

4 0

Answer:. c. a metal and a nonmetal.

Explanation:

A covalent compound is formed when an element shares its valence electron with another element. This bond is formed between two non metals. Example: $F_2$

An ionic compound is formed when one element completely transfers its valence electron to another element. The element which donates the electron is known as electropositive element and the element which accepts the electrons is known as electronegative element. This bond is formed between a metal and an non-metal. Example: $NaCl$

Thus an ionic compound is typically made of a metal and a nonmetal.

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Assuming 1 mol of Fe3+ and 2 mol of SCN- were allowed to react and reach equilibrium. 0.5 mol of product was formed. The total v

zaharov [31]

Answer:

a. 0.5 mol

b. 1.5 mol

c. 0.67

Explanation:

Fe3+ + SCN- -----> [FeSCN]2+

a. The ratio of the product to Fe3+ is 1:1. Meaning that if 0.5 mol of product was produced up then 0.5 mol of Fe3+ was used. Leaving 0.5 mol remaining at equilibrium

b. The ratio of the product to SCN= is 1:1. Meaning that if 0.5 mol of product was produced up then 0.5 mol of SCN- was used. Leaving 1.5 mol remaining at equilibrium

c. KC = 0.5/(0.5*1.5) = 0.67

3 0

3 years ago

Given the following reactions, what is the overall enthalpy change for the following reaction?

Elenna [48]

Answer:

-176.0 kJ/mol

Explanation:

Let's consider the following balanced reaction.

NH₃(g) + HCl(g) → NH₄Cl(s)

We can calculate the standard enthalpy change for the reaction (ΔH°rxn) using the following expression.

ΔH°rxn = 1 mol × ΔH°f(NH₄Cl(s)) - 1 mol × ΔH°f(NH₃(g)) - 1 mol × ΔH°f(HCl(g))

ΔH°rxn = 1 mol × (-314.4 kJ/mol) - 1 mol × (-46.1 kJ/mol) - 1 mol × (-92.3 kJ/mol)

ΔH°rxn = -176.0 kJ/mol

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3 years ago

A solution of sodium hydroxide is standardized against potassium hydrogen phthalate. From the following data, calculate the mola

In-s [12.5K]

Answer:

0.7158 Mol/L

Explanation:

KHC8H4O4 + NaOH → H2O + KNaC8H4O4

KHC8H4O4 molar mass = 204.2212 g/mol

0.4536 g of KHC8H4O4 = 2.221 mMol (10^-3 mol)

volume = 31.26 mL - 0.23 mL = 31.03 mL

NaOH concentration = 2.221 mMol/31.03 mL = 2.221 Mol/31.03 L = 0.7158 Mol/L

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4 years ago

Hydrochloric acid and sodium hydroxide can be combined to form sodium chloride and water. Which best explains the reaction? The

Bogdan [553]

Answer:

The statement "The total mass of hydrochloric acid and sodium hydroxide will result in the same total mass of sodium chloride and water." is true due to the Law of Conservation of Mass which states that matter cannot be created nor destroyed.

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3 years ago

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((Please help asap! Giving brainliest))

astraxan [27]

i hope this helped!

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4 years ago

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