2 years ago

Molecules can exist as: A)solids B) liquids C) gases D) all of the above

Chemistry

1 answer:

DerKrebs [107]2 years ago

6 0

I believe it is D. Hope this helps you!

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describe the general trend in electronegativity as metals in group 2 on the periodic table are concidered in order of increasing

hjlf

Answer:

Electronegativity decrease in group from top to bottom

Explanation:

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3 years ago

I NEED HELP PLEASE, THANKS! :)

marin [14]

Answer:

$\large \boxed{1.447 \times 10^{23}\text{ molecules Cu(OH)}_{2 }}$

Explanation:

1. Calculate the moles of copper(II) hydroxide

$\text{Moles of Cu(OH)}_{2} = \text{23.45 g Cu(OH)}_{2} \times \dfrac{\text{1 mol Cu(OH)}_{2}}{\text{97.562 g Cu(OH)}_{2}} = \\\\\text{0.240 36 mol Cu(OH)}_{2}$

2. Calculate the molecules of copper(II) hydroxide

$\text{No. of molecules} = \text{0.240 36 mol Cu(OH)}_{2} \times \dfrac{6.022 \times 10^{23}\text{ molecules Cu(OH)}_{2}}{\text{1 mol Cu(OH)}_{2}}\\\\= 1.447 \times 10^{23}\text{ molecules Cu(OH)}_{2}\\\text{The sample contains $\large \boxed{\mathbf{1.447 \times 10^{23}}\textbf{ molecules Cu(OH)}_{\mathbf{2}}}$}$

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3 years ago

What kind of chemical bond is formed between nonmetals? Explain your answer.

REY [17]

Answer:

The ionic bond is formed due to an electrostatic force of attraction between two oppositely charged ions. This bond is usually formed between a metal and a nonmetal. Prior to the electrostatic attraction, there is a total transfer of valence electrons from one atom to the other atom.

Explanation: hope that helps

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3 years ago

Which of the following statements BEST explains dissolution?

nordsb [41]

I had the same question, it's most likely B.

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3 years ago

Which of the following increases the reaction rate? A. Adding a catalyst to the reaction mixture B. Increasing the size of solid

pickupchik [31]

A. Adding a catalyst. A catalyst by definition is a compound that speeds up reaction rates.

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3 years ago