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2 years ago

What is shown by the structural formula of a molecule or polyatomic ion?

Chemistry

2 answers:

ziro4ka [17]2 years ago

8 0

Answer:

A) The arrangement of bonded atoms.

B) Number of Ionic bonds.

Explanation

The structural formula shows the bonding and general layout of the molecule.

Several molecules can have the same molecular formular especially in the branch of chemistry.

However each compound would always have a distinct way of bonding. By drawing out the structural formular of a molecule, we are pretty much just showing the arrangement of the bonded atoms. That is the primary detail in which a structural formular reveals.

Metallic bonds are generally bonds between metals and that can be obtained by checking if the compound has a metal.

Ionic bonds are bonds that result from the transfer of electrons between a metal and a non metal. By looking at the way the atoms are bonded, we can tell if that bond is an ionic or covalent. This is a secondary information revealed by the structural formula.

Shapes of Molecular orbitals are given by the molecular orbital diagrams and not the structural formular.

Misha Larkins [42]2 years ago

6 0

Answer : Option A) the arrangement of bonded atoms.

Explanation : A structural formula of certain molecule depicts the way the atoms are arranged in that particular molecule in any polyatomic species. It helps in deciding the chemical properties of that polyatomic molecule.

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Hydrazine, n2h4, is used as a rocket fuel. in the reaction below, if 80.1 g of n2h4 and 92.0 g of n2o4 are allowed to react, how

Mama L [17]

Answer is: excess of hydrazine is 16 grams.
Chemical reaction: N₂O₄(l) + 2N₂H₄(l) → 3N₂(g) + 4H₂<span>O(g).
</span>m(N₂H₄) = 80,1 g.
m(N₂O₄) = 92,0 g.
n(N₂H₄) = m(N₂H₄) ÷ M(N₂H₄).
n(N₂H₄) = 80,1 g ÷ 32 g/mol.
n(N₂H₄) = 2,5 mol.
n(N₂O₄) = 92 g ÷ 92 g/mol.
n(N₂O₄) = 1 mol; limiting reactant.
From chemical reaction: n(N₂H₄) : n(N₂O₄) = 2 : 1.
n(N₂H₄) = 2 mol reacts.
Δn(N₂H₄) = 2,5 mol - 2 mol = 0,5 mol.
Δm(N₂H₄) = 0,5 mol · 32 g/mol = 16 g.

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2 years ago

What conditions are important in determining if it will rain or snow?

zhannawk [14.2K]

For snow to fall to the ground, the temperature must be cold both up in the clouds where snowflakes form, and down at ground level. If the air near ground level is too warm, the snow will melt on its way down, changing to rain or freezing rain. Moisture is needed to form clouds and precipitation.

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2 years ago

Read 2 more answers

Why might people add a base to an acidic lake?

spayn [35]

Answer:

To decrease the algae

Explanation:

Acid lakes have more algae than other lakes

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2 years ago

An irreversible change would be?

klemol [59]

Answer:

A. Chipping ice to flakes

Explanation:

You can't reverse the ice becoming flakes. They will stay like that until they melt

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1 year ago

Which radioactive emission has the smallest (least) mass? Question options:

Tems11 [23]

Answer:

The answer is D. gamma rays

Explanation:

A radioactive atom can have three different types of emission:

alpha particles (α) = they have a mass of 4 amu and they have a very low penetrating power.

Beta particles (β) = they have 5x $10^{-4}$ amu and they have an intermediate penetrating power

Gamma rays (γ) = they are not particles basically just energy so its mass is ≈ 0 and its penetrating power is higher

For this reason Gamma emissions (γ) has the smallest mass value.

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2 years ago