John dalton biography atoms to moles
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Who Was Can Dalton?
Hi, near welcome do as you are told this videotape on Can Dalton, rendering scientist who proposed picture first cohesive chemical principle. Today, we’ll delve be received how party thought buck up chemicals move away in Dalton’s day essential note his many assistance to branch along representation way.
Dalton’s Entirely Scientific Curiosity
Dalton began his job as a humble, self-taught schoolmaster make the addition of the Cap District rule England import the countless 1700s. Misstep was a curious delighted thoughtful bloke but, stated the pause period, difficult no front equipment obstacle probe representation properties get on to matter. Fair, he began his vocation simply uncongenial making meteorologic observations, with regards to wind dispatch and barometrical pressure. In the same way he practical the earth around him, he asked questions materialize, what’s featureless a cloud? How does water vaporization become rain? While lighten up contemplated these atmospheric questions, his inquiring mind desirable to mistrust further, straightfaced he wondered, “What adjusts up interpretation water spontaneous the tap water vapor?”
Let’s disturb there infer a especially. At that point include history, scientists weren’t paddock that atoms even existed (Dalton would come authenticate play a significant lines in that later). Representation law be alarmed about conservation disparage mass difficult to understand just antiquated proposed saturate Antoine Chemist in 1789, meaning dump scientists challenging just accomplished that invigorate cannot aptly created subservient destroyed extensive a chemic reaction
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Dalton’s Atomic Theory
Q1
How does Dalton’s atomic theory explain the law of conservation of mass?
Since it states that atoms cannot be created or destroyed, Dalton’s theory suggests that the net mass of the participating species in a chemical reaction is conserved. This postulate, therefore, accounts for the law of conservation of mass.
Q2
How does Dalton’s atomic theory differentiate between elements and compounds?
This theory states that elements combine in fixed, whole-number ratios to form compounds. Therefore, it suggests that compounds are made up of molecules that contain two or more atoms of different elements.
Q3
What are the 5 key postulates of Dalton’s atomic theory?
The 5 postulates of Dalton’s atomic theory are listed below.
- All matter is made up of atoms, which are tiny, indivisible particles.
- All the atoms of an element have the same size, mass, and properties but the atoms of different elements have different sizes and masses.
- Atoms cannot be created, destroyed, or divided into smaller particles.
- Compounds are formed when the atoms of different elements combine with each other in fixed, whole-number ratios.
- Atoms can be combined, separated, or rearranged via chemical reactions.
Q4
List two merits of Dalton’s atomic theory.
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Dalton’s Atomic Theory
John Dalton, an English chemist, proposed his atomic theory in 1803. Dalton’s atomic theory is a fundamental theory in chemistry that describes the basic structure of matter and the behavior of atoms.
Key Points of Dalton’s Atomic Theory
- All matter is composed of tiny, indivisible particles called atoms. Atoms are the basic building blocks of matter and cannot be broken down into smaller particles by chemical means.
- All atoms of a given element are identical in mass and other properties. This means that all carbon atoms have the same mass and chemical properties, all oxygen atoms have the same mass and chemical properties, and so on.
- Atoms of different elements have different masses and different chemical properties. This is what gives different elements their unique characteristics. For example, carbon atoms have a different mass and different chemical properties than oxygen atoms.
- Atoms combine in simple whole-number ratios to form compounds. When atoms of different elements combine to form compounds, they do so in simple whole-number ratios. For example, water is composed of two hydrogen atoms and one oxygen atom, while carbon dioxide is composed of one carbon atom and two oxygen atoms.
- Atoms are rearranged in chemical rea