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What is a pure substance that can't be broken down by a chemical reaction?
Wiki User
∙ 8y ago
That is probably an atom, if you are talking about an element as a substance. Protons and neutrons in the nucleus of an atom can be broken even further into simpler parts called quarks. Breaking down a proton or neutron in the center of an atom doesn't really mean you're splitting the atom; just its parts. So, your answer would probably be an atom.
If further questions, report to a science book or reputable chemistry source immediately! lol ;)
Wiki User
∙ 13y ago
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Chemical reaction between phenol and bromine water?
it cant decolourise
Why cant an unbalanced chemical equation fully describe a reaction?
The amounts of reactants and products are not mentioned.
Why cant water soak through impermeable rock?
this is because it is a hard substance
What is made up of only one atom and has a chemical symbol and cant be divided into simpler substances?
The atom of a chemical element.
If the temperature of a chemical reaction is increased the reaction rate?
It depends if the reaction is endothermic (requires heat/energy) or is exothermic (requires no heat/energy and produces heat/energy). In general, most reactions are endothermic and require some amount of energy to 'go' and hence, an increase in temperature will increase the rate of reaction. However, in exothermic reactions, introducing heat can halt the reaction as well as reverse it, if said reaction is reversible.
What is a pure substance composed of atoms with the same number of protons and cant be broken down?
A chemical element.
Is cooking any onion a chemical reaction or physical?
its a chemical reaction . u cant get back raw onions after they r cooked! can uuuuuuuuuuuuu ??????????
What is a substance that cant be broken down into another substance?
an element
Why cant a chemical reaction be put back the same?
cause chemical reactions cant be reversed
What are the starting substances that are involved in a chemical reaction called?
Substances initially present in a chemical reaction that are consumed during the reaction to make products are called "reactants".A "reagent" is a substance or compound that is added to a system in order to bring about a chemical reaction or is added to see if a reaction occurs.Although the terms reactant and reagent are often used interchangeably, a reactant is more specifically a "substance that is consumed in the course of a chemical reaction".Solvents and catalysts, although they are involved in the reaction, are usually not referred to as reactants.
Can a pure substance be further decomposed?
no. wanna know why? a pure substance is made up of only one type of atom. atoms can't be broken down (divided) definition of an atom: that which cannot be divided. there ya go! ur welcome :) -shamansh
What is a chemical reaction is on the 5th grade level?
a chemical reaction is when you change the properties of something and you cant change it back:example>:burning paper
Chemical reaction between phenol and bromine water?
it cant decolourise
What elements can be broken down into any simpler substances?
No.An elementcan't be broken down into a simpler substance, without changing its chemical nature.
Why cant a chemical reaction change an element into another element?
Because an element in itself is defined as the simplest form of any substance found on earth. So you cant take a simplest form of a fraction and make it smaller without changing it.
Is turning an egg into a pancake a chemical or a physical reaction?
chemical -you cant turn the pancake back into an egg :)
What change makes a substance which cant be separate by physical means?
chemical .... :0)
