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3 years ago

Which pair of elements would most likely bond to form a covalently bonded compound?

Chemistry

1 answer:

anastassius [24]3 years ago

3 0

Answer:

two nonmetal elements join together to form covalent compounds

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Which type of substance have a definite shape and fixed volume?

IRINA_888 [86]

The answer is A. Solids only

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3 years ago

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Suppose a sodium hydroxide solution was standardized against pure solid primary standard grade KHP. If 0.4798 g of KHP required

Readme [11.4K]

Answer:

The NaOH solution has a molarity of 0.052 M

Explanation:

Step 1: Data given

Mass of KHP = 0.4798 grams

Volume of NaOH= 45.22 mL = 0.04522 L

Molar mass of NaOH = 40 g/mol

Molar mass of KHP = 204.22 g/mol

Step 2: Calculate moles of KHP

Moles KHP = mass KHP / Molar mass KHP

Moles KHP = 0.4798 grams / 204.22 g/mol

Moles KHP = 0.00235 moles

Step 3: Calculate moles of NaOH

KHP here acts as a mono-acid so, the number of moles of NaOH = number of moles KHP = 0.00235 moles

Step 4: Calculate molarity of NaOH

Molarity NaOH = moles NaOH / volume NaOH

Molarity NaOH = 0.00235 moles / 0.04522 L

Molarity NaOH = 0.052 M

The NaOH solution has a molarity of 0.052 M

6 0

4 years ago

What do members of the same group have in common?

lord [1]

The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements. Every element in the first column (group one) has one electron in its outer shell.

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3 years ago

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Which of the following has the strongest intermolecular forces?

Mrrafil [7]

Hello!

The molecule with the strongest intermolecular forces is CO₂ (Carbon Dioxide)

All the listed substances are nonpolar molecules, meaning that there isn't a dipolar moment (a difference in polarity resulting from the arrangement of atoms and electronegativity differences). Nonpolar molecules only have intermolecular interaction in the form of London dispersion forces.

London Dispersion Forces are stronger as the molecule size is bigger, so of the listed substances the biggest is CO₂, and it has the strongest intermolecular forces. This is evidenced by the fact that this substance has the highest boiling point of them all.

Have a nice day!

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4 years ago

Calculate the number of moles in 9.22 X 10^23 atom iron

sveta [45]

1.53 moles of Fe is your solution hope it helps!

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2 years ago