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What type of matter is made of elements in a specific ratio that is always the same?
Elements combined in specific ratios form compounds.
Do atoms combine in only one-to-one ratios to form compounds?
No, this affirmation is not correct.
Which elements proved difficult for mendeleev to add to his table because they were found to combine in various ratios with other elements?
Copper and magnesium are elements that were difficult for Mendeleev to add to his table because they were found to combine in various ratios with other elements.copper and manganese
Do compounds usually have variable ratios where as mixtures usually have fixed ratios?
No, its the opposite. Compounds have fixed ratios, think of H20, while mixtures can vary. You can make many types of mixtures out of the same things. Because of bonding compounds have fixed ratios.
What chemical elements are in monosaccharide?
The chemical elements present in monosaccharides are carbon (C), hydrogen (H), and oxygen (O). These elements combine in specific ratios to form different types of monosaccharides, such as glucose, fructose, and galactose.
Do elements that combine in changing ratios form mixtures?
No, compounds are formed.
What do you get with changing ratios that combine in elements?
In this mode different compounds are obtained.
What forms a compound?
Atoms of elements combine in fixed ratios will form compounds.
What Elements combine in fixed mass ratios to form compounds This must mean that elements?
Elements are composed of discrete units called atoms.
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 type of matter is made of elements in a specific ratio that is always the same?
Elements combined in specific ratios form compounds.
Did Dalton's atomic theory state that atoms of different elements combine in simple whole-number ratios can form compounds?
John Dalton, the father of modern chemistry, said that atoms combine in simple whole-number rations to form compounds.
Do atoms combine to form molecules in simple whole number ratios?
They do combine in whole number ratios, but these ratios need not be simple - particularly in some organic compounds.
What do compounds always contain exact ratios of?
elements
Why do elements join to form compounds in specific ratios?
Elements combine according to the electrons in their outer shell. These allow only certain combinations which form a ratio. Oxygen has 2 + in its outer shell. Hydrogen has 1 - in its outer shell. So the ratio is always 2:1.
Why use prefixes for molecular compounds?
two ions can combine in only one combination
Can two completely different compounds contain identical elements?
No. The chemical formulas for the two compounds would be different as the ratios were different. For example there are three different oxides of iron which obviously contain the same two elements but these are in different ratios:- FeO Fe3O4 Fe2O3
