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Elements and compounds (pure substances) cannot be broken down by physical changes.

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What cannot be decomposed into simpler substances by ordinary means?

Elements


How do compounds differ from elements?

Compounds are made up of 2 or more elements.Compounds can be broken down into simpler substances by chemical means, but elements cannot.Compounds are made up of 2 or more elements. Compounds can be broken down into simpler substances by chemical means, but elements cannot.


Why aren't compounds and elements the same?

Compounds are made of two or more substances joined together, and elements are a pure substance that can't be broken down into simpler substances.


Elements and Compounds are called?

Elements and compounds are called substance....subtances can be either elements or compound....an elementis a substance that cannot be separated into simpler substances by ordinary means...!!a compound is a pure substance that contains two or more elements combined in afixed proportion.......example of the formation of a comp. :1. Sodium plus chlorine --> sodium chloride


How are elements and compound different?

Elements are made up of only one thing. While a compound is made of two of more elements. Here is an example. H2O. Water is hydrogen and oxygen.


How do compaunds deffer from elements?

Compounds are made up of 2 or more elements. Compounds can be broken down into simpler substances by chemical means, but elements cannot.


Are sodium and francium elements or compounds?

Sodium and francium are elements. Elements are substances that cannot be broken down into simpler substances by chemical means, whereas compounds are substances composed of two or more elements chemically bonded together.


What is a substance that cannot be split into simpler substance by ordinary chemical means?

Element Compounds can be broken down to elements (atoms) which cannot be decomposed further into simpler substances (that's why they're called a-toms, from Greek 'à-tomos', meaning 'un-sliceable'.


How do you differentiate elements and compounds?

Elements can not be made into simpler substances even by chemical reactions. Compounds can be broken down to simpler substances and eventually to elements. One useful observation is that an element will burn to give only one product, whereas a compound will give more than one.


When a binary compound decomposes it creates what?

The only possibility is to produce its two constituent elements.


What is elements plus compounds?

Elements are substances made up of only one type of atom, while compounds are substances made up of two or more different types of atoms bonded together. Elements cannot be broken down into simpler substances, while compounds can be broken down into their constituent elements through chemical reactions.


Are there more elements or more non-elements?

There are more non-elements than elements. Elements are substances that cannot be broken down into simpler substances by chemical means, while non-elements can encompass a wide range of substances such as compounds, mixtures, and other forms of matter that are not elements.