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Do elements that combine in changing ratios form mixtures?
When elements combine in changing ratios, they form compounds rather than mixtures. Mixtures are made up of different substances that are not chemically bonded together, while compounds are formed by chemical bonding between elements in specific ratios.
What is formed when two or more elements combine?
When two or more elements combine, they form a compound. Compounds are composed of atoms of different elements bonded together in specific ratios.
What is matter made of elements combined in changing ratios?
You think probable compounds.
Which elements proved difficult for mendeleev to add to his table because they were found to combine in various ratios with other elements?
The noble gases, such as helium, neon, and argon, were difficult for Mendeleev to add to his table as they were found to be chemically inert and did not easily combine with other elements in fixed ratios. This challenged the periodicity of his table, which was based on the repeating patterns of chemical properties.
What evidence convinced John Dalton that elements must be made of individual particles called atoms?
John Dalton was convinced that elements must be made of individual particles called atoms due to his observations of ratios in chemical reactions. He analyzed the ratios at which elements combine with each other to form compounds, and proposed that atoms combine in simple whole number ratios, leading to the development of his atomic theory.
How did dalton explain the formation of compounds?
Dalton proposed that elements combine in simple whole number ratios to form compounds, based on his atomic theory. He suggested that atoms of different elements combine in specific ratios to form compounds, where each compound has a unique composition. This explanation laid the foundation for understanding chemical reactions and the formation of compounds.
What elements are combined to make sugar?
Sugar is composed of the elements carbon, hydrogen, and oxygen. These elements combine in various ratios to form different types of sugars, such as sucrose, glucose, and fructose.
Did Dalton's atomic theory state that atoms of different elements combine in simple whole-number ratios can form compounds?
Yes, Dalton's atomic theory included the idea that atoms of different elements can combine in simple whole-number ratios to form compounds. This concept helped explain the law of definite proportions.
What are compounds composed of?
Compounds are composed of two or more different elements that are chemically bonded together. These elements combine in fixed ratios to form specific compounds with unique chemical and physical properties.
Do elements always combine in specific ratios?
The Law of Definite Proportions says that a given chemical compound always contains the same proportion by mass of its constituent elements. This is NOT the same as saying that elements always combine in a specific ratio, because they can combine in different ratios in different compounds. An example of this might be copper oxide which can be CuO or Cu2O, showing a different ratio of copper to oxygen. So, the answer to the question, as asked, is no, elements do not always combine in specific ratios.
What Elements combine in fixed mass ratios to form compounds This must mean that elements?
In chemical compounds, elements combine in fixed ratios by mass to form stable, distinct substances. This observation is summarized in the law of definite proportions, which states that a compound is always composed of the same elements in the same proportions by mass. This principle demonstrates the predictable and reproducible nature of chemical reactions.
When two or more elements combine chemically it is called?
When two or more elements combine chemically, it is called a chemical compound. In a chemical compound, the elements are bonded together in specific ratios to form a new substance with unique properties.
