Dalton's experiments advanced our understanding of the atom withoutA.carefully observing and measuring events.B.discovering the internal structure of the atom.C.examining the ratios of elements involved in chemical reactions.D.testing a hypothesis.

Answers

Answer 1

Answer:

Answer:

B: Discovering the internal structure of the atom.

Explanation:

Dalton’s experiments with gases marked the beginning of the modern era of chemistry. The hypotheses about the nature of matter on which Dalton’s atomic theory is based can be

summarized as follows:

Elements are composed of extremely small particles called atoms.
All atoms of a given element are identical, having the same size, mass, and chemical properties. The atoms of one element are different from the atoms of all other elements.
Compounds are composed of atoms of more than one element. In any compound, the ratio of the numbers of atoms of any two of the elements present is either an integer or a simple fraction.
A chemical reaction involves only the separation, combination, or rearrangement of atoms; it does not result in their creation or destruction.

Dalton made no attempt to describe the structure or composition of atom —he had no idea what an atom is really like. But he did realize that the different properties shown by elements such as hydrogen and oxygen can be explained by assuming that hydrogen atoms are not the same as oxygen atoms.

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Can someone tell me about kinetic, potential, and gravitational energy?
Which best describes a reaction in a state of equilibrium? A. The rates of the forward and reverse reactions are zero and the concentrations of products and reactants are equal. B. The rate of the forward reaction equals the rate of the reverse reaction and the concentrations of products and reactants are equal. C. The rates of the forward and reverse reactions are zero and the concentrations of products and reactants are constant. D. The rate of the forward reaction equals the rate of the reverse reaction and the concentrations of products and reactants are constant.

What process occurs in a controlled fusion reaction

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The controlled fusion reaction is a nuclear reaction in which two or more atomic nuclei come very close and then collide at a very high speed and join to form a nucleus. The mass of the new nucleus is slightly less than the sum of its components b an amount known as binding energy.

Which metallic properties are caused by atoms rolling over each other in metallic bonds?malleability and ductility
shininess and ductility
conductivity, malleability, and shininess
ductility, conductivity, and malleability

Answers

Answer: malleability and ductility

Explanation:-

Malleability is the property of metals to be beaten into sheets. Ductility is the property of metals to be drawn into wires.The delocalized sea of electrons enable the metal atoms to roll over each other when stress is applied and thus they can be converted to sheets or wires.

Shininess of metals is because electrons on the surface can bounce back light at the same frequency as the light hits the surface.

When a wire is connected to a metal, the delocalized electrons are drawn to the positive pole and thus helps in the conduction of electricity.

The metallic properties that are caused by atoms rolling over each other in metallic bonds are malleability and ductility.the atoms that are being rolled over are delocalized electrons in the sea of electrons in the metallic bond enable them to roll over when stress is applied.

Which term is defined as a measure of the disorder of a system? (A) heat (B) kinetic energy (C) entropy (D) activation energy

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The question is asking which of the following choices is defined as a measure of the disorder of a system, and base on the question and further research of the said question, I would say that the answer would be C. Entropy. I hope you are satisfied with my answer and feel free to ask for more

Answer:

C. Entropy

Explanation:

Heat is defined as the energy transferred from a hotter to a cooler body.

Kinetic energy is defined as the energy of a body in motion.

Entropy is a thermodynamic quantity that could be defined as a mesure of the disorder of a system. For a ordered crystal, entropy is zero.

Activation energy is defined as the minimum quantity of energy required to activate a particular chemical process.

I hope it helps!

What has to be true of a substance for it to dissolve in water?

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The polarity of a water molecule comes from the uneven distribution of electron density of hydrogen and oxygen atom. The oxygen in the water molecule is more electronegative than the hydrogen. Water has a partial positive charge near the hydrogen atom and a partial negative charge near the oxygen atom. The result of this electrostatic attraction results in the bond called hydrogen bond. Also, because of this bond, it has the ability to dissolve most of the solutes due to its polarity and bonding.

No one's even answering, so i'll just uh leave this here

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Answer:

answering what???

Explanation:

Answer:

I answered

Explanation:

The process of a material going through a change of state from a gas to a liquid is called _____. melting freezing condensation vaporization

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Condensation is the change in state of matter from gas to liquid.

The process of a material going through a change of state from a gas to a liquid is called _____.

condensation