At 298 K, oxygen (O2) and ozone (O3) have different properties because their(1) atoms have different atomic numbers(2) atoms have different atomic masses(3) molecules have different molecular structures(4) molecules have different average kinetic energies

Answers

Answer 1

Answer:

Answer: (3) molecules have different molecular structures.

Explanation:

1) Oxygen (O₂) and ozone (O₃) are allotropes of each other.

2) Allotropes are different structural forms of a same element with different structures and properties, when they are in the same state: solid, liquid, gas.

3) The bonds is what define the structure and properties of the substances, so since O₂ has only two bonds and O₃ has three bonds, the properties and behaviors of the element are different.

4) Other example of allotropes are graphite and diamond: two different forms of carbon. Both, graphite and diamond are formed only by carbon atoms, but they are bonded differently so, as you know, diamond and graphite have different properties: graphite is very soft while diamond is one of the hardest known substances.

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How does a scientific theory compare to a scientific law?

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Answer:

Explanation:

Scientific theory is an in-depth explanation of the observed phenomenon. A law is a statement about an observed phenomenon or a unifying concept.

The characteristic temperature at which a pure solid changes to a liquid is its ______ point.

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it is known as the melting point

Answer:

freezing

Explanation:

What are the thin fibers of the human nervous system that send messages between different parts of the body?A.
nerves

B.
brain

C.
spinal cord

D.
eye

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Answer:

The correct answer is option A, that is, nerves.

Explanation:

The nerves are also known as neurons that make up the nervous system. The nerves are considered as the unique cells, which conduct messages from one section of the body to another, as minute electrical signals. These messages are also called nerve impulses. There are three distinct kinds of neurons known, and each one exhibit a somewhat different function. These are relay neurons, sensory neurons, and motor neurons.

A. Nerves, it's literally the only one that makes sense

Which statement explains how the bands in the crystal of a metal are like atomic orbitals?

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Please provide the choices here.

The similarity of the bands in the crystal of a metal to the atomic orbitals can be explained by the band theory of metals. In an atom, when the electrons get excited, the electrons jumps to a higher orbital so as to reach equilibrium. This is analogous to the electrons in the metals which also jumps to another band once excited by an external energy (e.g. electrical energy).

Answer:

Explanation:

They both allow electrons to move from lower energy levels to higher energy levels.

Pls help its due in a few minutes

Answers

Answer:

Theory

Explanation:

The molar mass of CO2 is 44.01 g/mol. Which is the mass of 3.21×1025 molecules of CO2

Answers

Given:

Molar mass of CO2 = 44.01g/mol

3.21x10^25 molecules of CO2

Required:

Mass of CO2

Solution:

Avogadro’s number states that for every mole of atom, there are 6.023x10^23 units of atom. The units may be formula units, atoms. In here, you need to divide 3.21x10^25 molecules of CO2 to 6.023x10^23 molecules per mole.

3.21x10^25 molecules of CO2 / 6.023x10^23 molecules per mole = 53.30 moles CO2

53.30 moles CO2 (44.01g/mol CO2) = 2346 g of CO2

Other Questions

A potassium ion (K+) would most likely bond with?

What does newton's third law say about why momentum is conserved in collisions?A. Equal forces act in equal times, so the change in momentum for both objects must be equal. B. Unequal forces act in unequal times, so the change in momentum for both objects must be equal. C. Unequal forces act in unequal times, so the change in momentum for both objects must be unequal. D. Equal forces act in unequal times, so the change in momentum for both objects must be equal.

An ionic bond would most likely form between atoms of which of these pairs?A. oxygen and oxygen B. magnesium and oxygen C. magnesium and magnesium

Two basic properties of the solid phase are