Matter and Atoms
Where can the number of valence electrons be found?
The elements group number
What happens the the partials during a chemical reaction?
The partials are rearranged forming a new substance
What is the hydrosphere?
Composed of all of earths supply of moisture in all forms
What is nonrenewable energy?
Any resource that is used at a faster rate then it can be replaced
Group 1
Evidence of a chemical reaction
Change in temperature, change in color, and creating a new gas or solid.
What is parasitism?
One organism benefits and the other is harmed
Which group are the noble gases in?
Group 18
True or False: About 10% of energy produced at each level of a food chain is available to the one above it.
True
How do fossil fuels affect the environment?
They release greenhouse gasses and pollution
What are valence electrons used for?
determining how atoms interact with each other to form chemical bonds
What is the law of conservation of mass?
Mass is neither created nor destoryed
What is the difference between elements and compounds?
Elements contain one type of atom, compounds contain two or more atoms that are chemically combined.
What are chemical equation?
Shows how matter is conserved in a reaction