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3 years ago

The sediment left behind by a glacier is typically

2 answers:

7 0

The material dropped by a glacier is usually a mixture of particles and rocks of all sizes. This unsorted pile is called glacial till. A moraine is sediment deposited by a glacier. A ground moraine is a thick layer of sediments left behind by a retreating glacier.

Alex787 [66]3 years ago

6 0

Answer:

It's typically a mixture of particles and rocks of all sizes

Explanation:

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How many grams of chromium metal are plated out when a constant current of 8.00 A is passed through an aqueous solution containi

Vsevolod [243]

Answer:

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Explanation:

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3 years ago

Is it possible for parents whose alleles for a dominant trait are homozygous dominant to have offspring with a homozygous recess

Fynjy0 [20]

The right answer for the question that is being asked and shown above is that: "TRUE." It is <span>possible for parents whose alleles for a dominant trait are homozygous dominant to have offspring with a homozygous recessive trait. This is true.</span>

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4 years ago

On the basis of molecular structure and bond polarity, which of the following compounds is most likely to have the greatest solu

Drupady [299]

Answer:

$\boxed{\text{c) NH$_{3}$; hydrogen bonding}}$

Explanation:

For each of these molecules, you must determine their VSEPR structure and then identify the strongest intermolecular forces.

Remember that water is a highly polar molecule.

a) CH₄

Electron geometry: tetrahedral

Molecular geometry: tetrahedral

Bond polarity: C-H bond nonpolar

Molecular polarity: nonpolar

Strongest IMF: London dispersion forces

Solubility in water: low

A nonpolar molecule is insoluble in a polar solvent.

b) CCl₄

Electron geometry: tetrahedral

Molecular geometry: tetrahedral

Bond polarity: C-Cl bond nonpolar

Molecular polarity: nonpolar (symmetrical molecule. All bond dipoles cancel)

Strongest IMF: London dispersion forces

Solubility in water: low

A nonpolar molecule is insoluble in a polar solvent.

d) PH₃

Electron geometry: tetrahedral

Molecular geometry: trigonal pyramidal

Bond polarity: P-H bonds are polar

Molecular polarity: polar (all P-H bond dipoles point towards P)

Strongest IMF: dipole-dipole

Solubility in water: soluble

A polar molecule is soluble in a polar solvent.

c) NH₃

Electron geometry: tetrahedral

Molecular geometry: trigonal pyramidal

Bond polarity: N-H bonds are highly polar

Molecular polarity: highly polar (all N-H bond dipoles point towards N)

Strongest IMF: hydrogen bonding

Solubility in water: highly soluble

NH₃ is so polar that it can form hydrogen bonds with water.

$\boxed{\textbf{The compound with the greatest solubility in water is NH$_{3}$}}$

8 0

3 years ago

When unbalanced forces act on an object that is in motion, the object can:

AlekseyPX

Answer:

A. change speed, direction, or both

Explanation:

hope this helps. . . <3

good luck! uwu

5 0

3 years ago

80) Which one of the following should have the lowest boiling point? Group of answer choices HCl H2S PH3 H2O SiH4

Lunna [17]

Answer:

SiH4

Explanation:

We must remember that the magnitude of intermolecular forces play a vital role in the determination of the boiling point of a substance.

The Si-H bond is the least polar among all the bonds in compounds listed in the question. This is because the electronegativity difference between silicon and hydrogen is very slim resulting in the formation of a nonpolar covalent bond.

The other compounds possess more polar bonds hence have a greater degree of dipole interaction between molecules and a consequently higher boiling point than SiH4.

7 0

3 years ago