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3 years ago

Give the formula and name for the iconic compounds formed from the following pairs of elements:

Chemistry

1 answer:

Fudgin [204]3 years ago

4 0

(1) Give the formula and name for the iconic compounds formed from the following pairs of elements:

A. KCl potassium chloride

B. ZnO zinc oxide

(2) Give the formula for each of the following ionic compounds:

A. KClO₃ potassium chlorate

B. MgSO₄ magnesium sulfate

C. KNO₃ potassium nitrate

(3) Give the name of the following covalent compounds:

A. SO₂ sulfur dioxide

B. CCl₄ carbon tetrachloride

C. SiS₂ silicon disulfide

D. SCl₂ sulfur dichloride

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igomit [66]

[OH⁻] = 1.6 × 10⁻⁸ mol / dm³

<h3>Explanation</h3>

By definition, $[\text{H}^{+}] = 10^{-\text{pH}}$ , where $[\text{H}^{+}]$ is the concentration of proton in the solution.

pH = 6.2 for this solution. As a result, $[\text{H}^{+} = 10^{-6.2} = 6.31 \times 10^{-7} \; \text{mol} \cdot \text{dm}^{-3}$ .

$[\text{H}^{+}] \cdot [\text{OH}^{-}] = \text{K}_w$ , where $[\text{OH}^{-}]$ the concentration of hydroxide ions and $\text{K}_w$ is the dissociation constant of water.

$\text{K}_w = 10^{-14} \; \text{mol}\cdot \text{dm}^{-3}$ at 0.10 MPa and 25 °C. As a result, $[\text{OH}^{-}] = \text{K}_w / [\text{H}^{+}] = 10^{14} / (6.31 \times 10^{-7}) = 1.6 \times 10^{-8} \; \text{mol}\cdot \text{dm}^{-3}$ .

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vladimir2022 [97]

Explanation:

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whg doe sthe transfer of electrons from magnesium to oxygen cause the ions produced to attract eachother

almond37 [142]

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4 years ago

How would I draw this? Thank you in advance!<br> (Z)-4-chloro-3-methylhept-2-ene

Savatey [412]

Answer:

In the attached photo.

Explanation:

Hello,

You could find the structure in the attached photo, taking into account that the initial (Z) resembles to the trans arrangement for this alkene.

Best regards.

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The pressure in car tires is often measured in pounds per square inch (lb/in.2), with the recommended pressure being in the rang

Minchanka [31]

Answer:

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1 atm = 14.6959 psi

38.5 / 14.6959 = 2.62 atm

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