types of reactions
A reaction where two or more substances combine to form a more different substance.
synthesis reaction
A thing that has no shape of its own.
A liquid
are the atoms rearranged in a chemical change, yes or no
yes
when you put a balloon into hot water what happens
it grows because the molecules move faster
Increasing the temperature typically does this to the rate of a chemical reaction
increases
A single compound breaks down into two or more simpler products
decomposition
When something changes from a solid to a liquid is know as.
Melting
The process of a nail rusting is an example of what kind of change
chemical change
when you put a balloon into cold water what happens
it will shrink because it slows down the molecule
A reaction in which an element replaces another element in a compound
single replacement
The specific temperature something melt at.
melting point
When you burn wood, the ash and smoke are evidence of a chemical change because of
new substance
When a gas turns into a liquid. for example when water vapor forms clouds
condensation
A reaction that releases energy, often in the form of heat or light
exothermic reaction
When gas is holed in a box or object is known as.
pressure
Mixing vinegar and baking soda will produce bubbles of gas which is a sign of what of change.
chemical change
The process when a solid turns directly into a gas skipping the liquid phase.
sublimation
A reaction that absorbs energy from its surroundings causing the temperature to drop.
endothermic reaction
An atom or group of atoms that have a electric charge is a.
Ionic bond
what is the only way we know for sure that a chemical reaction has occurred
the formation of a new substance
A change that changes the size shape or state of matter but not the chemical identity.
physical change