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3 years ago

Given the formula representing a molecule:

Chemistry

2 answers:

NARA [144]3 years ago

5 0

Answer:

Symmetrical and non polar

Explanation:

H- C = C- H is a symmetrical, non polar molecule since it is linear and the arrangement of the atoms is the same on both sides of the triple bond.

Aleksandr [31]3 years ago

3 0

Answer:

B) Symmetrical and nonpolar

Step-by-step explanation:

The formula is H-C≡C-H.

Each C atom has two electron regions, so VSEPR theory predicts a linear molecular geometry (see image below).

The molecule is symmetrical, because the green line divides the molecule into two halves that are mirror images of each other.

The C-H bonds are slightly polar, because C is more electronegative than H (µ ≈ 0.4 D).

The C atoms are partially negative (red), while the H atoms are partially positive (blue).

However, the two C-H bond dipoles point in opposite directions, so they cancel each other. The molecule has no net dipole moment.

Acetylene is nonpolar.

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spayn [35]

Answer:

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2 years ago

What is the percent by mass of a solution containing 4. 0g of solute in 100g of water? (Percent by mass formula: (mass of solute

Hoochie [10]

B
mass of solute - 4.0 g
mass of solution - 100g + 4.0g = 104g
4/104 = 0.03846
0.03846 • 100 = 3.8%

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2 years ago

The amount of energy it takes to remove an electron from an atom is

lara31 [8.8K]

the first ionization energy of an element is the energy needed toremove the outermost, or highest energy, electron from a neutral atom in the gas phase.

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2 years ago

Is a diamond a homogeneous or heterogeneous mixture?

Ivanshal [37]

Answer:

It's a heterogeneous mixture.

Explanation:

Diamond is made of just one element: carbon. Each carbon atom in diamond is connected to four other carbon atoms, in a crystal that extends on and on. There are other forms of pure carbon where the atoms are bonded differently, notably charcoal and graphite.

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3 years ago

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sladkih [1.3K]

Answer:

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