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Why do some substances require larger additions before a color change was seen?
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What is a change in which one or more substances are converted into two substances?
A chemical change.
Chemical change definition?
A chemical change involves altering substances. One or more substances are changed into different and new substances in this process.
Because change the identity of the substances involved they are hard to reverse?
ChemicalBecause CHEMICAL change the identity of the substances involved they are hard to reverse.
A change in which substances change into new substances that is not reversible?
Chemical reaction; this involves the breaking and forming of bonds between atoms which will change the properties of the substance (ex: rusting)
What is a substance that results in a chemical change called?
These substances are called "products" or "resulting substances".
Reactants?
The Substances before he change happens.
Are all substances the same before and after burning?
No, some substances change their whole form and others just change their color and shape.
Are chemical reactions a chemical change of original substances before a chemical reaction takes a place?
Substances are changed only after the beginning of a chemical reaction.
Did the law of conservation of mass state that the mass of all substances before a chemical change equals the mass of all the substance after the change?
Yes
What is a change in which one or more substances are converted into two substances?
A chemical change.
Do avocados melt?
No. The complex substances which they are made of change before that can happen. The changes are complex, but they generally end up with charring, that is breaking down to simpler substances including carbon.
What is a substances that undergo a chemical change?
Substances that undergo chemical change are called reactants.
Is it a physical change or a chemical change when substances combine to make new substances with new properties?
Chemical change.
This is a process in which substances change into new substances with different properties?
Chemical Change
Chemical change definition?
A chemical change involves altering substances. One or more substances are changed into different and new substances in this process.
When two substances react what change occurs?
when two substances react a chemical change occurs
What would not require a spelling change before attaching the portable part -er to the end?
-ate
