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3 years ago

4. In a crystal, the particles are arranged in

Chemistry

1 answer:

soldier1979 [14.2K]3 years ago

5 0

In a crystal, the particles are arranged in an orderly, repeating, three-dimensional pattern.

Option C

Explanation:

Solid crystal particles can be ions, molecules or atoms, based on the material kind. The three-dimensional solid crystal system is called the crystal lattice. The crystals are divided into general categories according to their shape.

The crystal is characterized by faces that intersect at specific angles characteristic of this material. Crystal is a material in which particles get arranged in an ordered, repeatable, three-dimensional way. Means, a solid contains an atomic patterns that is uniformly repeated in three dimensions.

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dmitriy555 [2]

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3 years ago

What are hydroxyl groups and what happens to them when molecules combine?

Sloan [31]

Hi! Chemistry is complicated, right?

A hydroxyl group is a group that consists of
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I hope I helped!

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3 years ago

A. draw the structure of the tetrahedral intermediate initially formed in the reaction shown. you do not have to consider stereo

julsineya [31]

The reaction is shown below, Acid protonates the carbonyl oxygen and makes the carbonyl carbon more electrophilic. Water attacks on activated carbonyl group and forms a tetrahedral intermediate.

Intermediate:
Structure of Intermediate is shown both in 2-D and 3-D (below attached).

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Reaction is as below, The final product is carboxylic acid.

4 0

3 years ago

ethanol is a common laboratory solvent and has a density of 0.789 g/mL. what is the mass, in grams, of 151 mL of ethanol

natta225 [31]

V = 151 mL = 151 cm³
d = 0,789 g/mL = 0,789 g/cm³
--------------------------------------

d = m/V
m = d×V
m = 0,789×151
m = 119,139g

3 0

4 years ago

Read 2 more answers

Practically: Add 1.66 ml of my 0.3M lemonade to a 15 ml microcentrifuge tube. Add 3.33 ml of your diluent (water, in this case)

Sedbober [7]

Answer:

We would need 10 mL of the concentrated CaCl₂ stock solution, and 30 mL of water.

Explanation:

To solve the question asked we can use the C₁V₁=C₂V₂ equation, where:

C₁ = 200 mM

V₁ = ?

C₂ = 50 mM

V₂ = 40 mL

We solve for V₁:

V₁ = 10 mL

We would need 10 mL of the concentrated CaCl₂ stock solution, and (40-10) 30 mL of water.

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3 years ago