Chemical Reactions
What is a chemical property?
A characteristic that describes the atomic or elemental composition of a substance
What is synthesis?
putting atoms/molecules together to make a bigger molecule
What can increase the rate of a reaction?
Shaking/stirring, increasing temperature or pressure
What are some signs of a chemical reaction?
Temperature change
Change in color
Gas formation
What is decomposition?
Breaking down a big molecule to make smaller atoms/molecules
When will the reaction stop?
When at least one of the reactant has been used up
How are the physical and chemical properties of an element determined by?
By the makeup of its atomic particles, or atoms
What is repleacement?
atoms or parts of molecule switch places. Can be single or double
What is a catalyst
a chemical that accelerates a chemical reaction without being consumed in the reaction
What is a physical property?
A property of a substance that can be observed without changing the substance's identity ( size, shape, state of matter, density, color, ability to conduct electricity)
What is double replacement?
a chemical process where ions in 2 ions compounds exchange places in an aqueous solution to form 2 new compounds
Where are catalysts written?
Over the arrow in chemical equations?
What is an example of a chemical property
flammability, oxidation (rust), ability to react with acids
What is single replacement?
An element takes the place of another element within a compound
TRUE OR FALSE
there will be the exact same amount of the catalyst at the end of the reaction as at the beginning.
true