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Chemistry

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Mohammed Parisian

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Cards in this guide (16)
Which of these elements has the smallest atomic radius

The answer choices for this question wasn't provided. Oxygen has the smallest atomic radius. The higher the electronegativity in an element makes the atomic radius smaller.

Name the following binary compound K2Cr2O7

Potassium Dichromate

What are hydrogen bonds why is that important

Hydrogen bonds occur in bonding many elements, or compunds.. without them, we would surely die.

Which term describes the describes the disorder of random molecular motion

Entropy

How is the oxidation state of a transition metal determined from the chemical formula

The subscript of the second ion identifies the oxidation state of the transition metal

How is the name of the second element in a covalent molecule changed

The ending of the second element is changed to -ide

What best describes a bond formed between two unlike atoms

The type of bond is determined by the difference in electrongativity of atoms

What effect does a lone electron pair have on molecular shape

The lone pair pushes bonding electron pairs away.

What shape does the molecule ClF2 plus have

The ClF2+ ion is bent. (The VSEPR AXE notation is AX2E2 ). The ClF2- ion (AX2E3) is linear.

What is the correct electron configuration for an element with 5 electrons in the third energy level

1s^22s^22p^63s^23p^3

What bond is formed between two identical atoms

A molecular bond

Will two oxygen atoms form an ionic bond

Does two oxygen atoms for an ionic bond

Which the following is a necessary product of a combustion reaction

heat

Which of the following has the smallest radius is K plus Rb Rb plus K

K+

Which molecule or ion has a trigonal planar shape

So3

how should you indicate that there are multiple polyatomic ions in a chemical formula

put parentheses around the atoms in the ion and then add a subscript - apex

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