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Is a substance in which all the exact combinations of elements are always the same?
A substance in which the exact combination of elements is always the same, is called a compound.
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What do compounds always contain exact ratios of?
elements
Substance in which all atoms are alike?
A substance in which all atoms are identical is called an element.
What do compounds always contain in exact ratios?
Compounds always contain elements in exact ratios, based on the chemical formula of the compound. This means that the elements are present in specific and consistent proportions in the compound.
What determines the exact age of a substance?
The exact time it was created.
What is a list of Elements in a compound in exact ratios?
A compound is a substance composed of two or more elements chemically bonded together in exact ratios. For example, in water (H2O), the elements hydrogen and oxygen are combined in a 2:1 ratio. Another example is carbon dioxide (CO2), where carbon and oxygen are combined in a 1:2 ratio.
Offspring that result from reproduction can always maintain a parent's gene combinations?
Offspring inherit a combination of genes from both parents, but this doesn't necessarily mean they maintain the exact gene combinations of either parent. Genetic recombination and independent assortment during meiosis result in unique combinations of genes in offspring. These genetic variations contribute to the diversity within a species.
What two elements make up the most of matter in a star?
The exact mix is different depending on the star's age and size, but hydrogen and helium are always the two most prevalent elements.
What two elements make up most of the matter in star?
The exact mix is different depending on the star's age and size, but hydrogen and helium are always the two most prevalent elements.
When reactive elements combine they give off heat and what other substance?
Heat is energy, not a substance. When reactive elements combine they form more stable compounds. The exact substance formed depends on the elements. e.g. hydrogen and oxygen form water while sodium and chlorine form common table salt.
Is nitrogen a mixture or substnce?
It is a substance. A pure one to be exact, classified as one of the elements on the periodic element table.
Do mixtures contain exact ratios of elements?
No, they do not.
What is the similar and difference of elements and compound?
DIFFERENCES• Compounds have two or more different types of atoms.• Elements are pure substances that have the exact same type of atom.SIMILARITIES• They are both pure substances.
