Chemical Properties
The main source of energy for cells is
carbohydrates
a _______ _______ begins and ends with the same kind of matter.
What is physical changes.
A life is ______ .
What is God creation?
All compounds have chemical names and many have common names as well. Chemical names use the names of _________.
What is elements
If liquid loses energy, _________ occurs and a solid forms.
What is freezing.
The basic unit of structure and function in an organism
cell
A _________ __________ begins with one type of matter and ends with another kind of matter.
What is a chemical change.
A chemical change is also know as a __________ ________.
What is a chemical reaction.
Chemists write equations for chemical changes similar to math equations. A ______ _______ keeps track of which substances are used , and in what ratio.
What is chemical equation.
If a gas loses energy , the particles slow down and can turn into a liquid. This process is called _________.
What is condensation.
The chemical reactions of breaking down materials
metabolism
Adding _____ ______ to a solid may change the solid to a liquid.
What is .. heat energy
Chemical changes produce _____ substances.
What is new .
The chemicals on the LEFT side of the chemical equation are _________.
What are reactants.
The total mass of the reactants ______ the total mass of the products.
What is equals
The mistaken idea that living things can arise from nonliving sources
spontaneous generation
When adding heat energy to a solid , that solid changes into a liquid. This process is called _________. This is a physical change.
What is melting.
What are 5 examples of chemical changes?
* change in color
* change in odor
* energy change
* formation of gas
* formation of precipitate
The chemicals on the RIGHT side of the equation are called ______________
What are products.
Define the law of conservation of mass.
The total mass of the reactants equals the total mass of the products.
The process of change that occurs producing a more complex organism
develop
If enough energy is added to a liquid, the liquid may boil and __________ or become a _____
What is evaporate and gas.
A ________________ is a solid formed from the chemical reactions of some solutions.
What is a precipitate.
The reactants and products are made of the same elements, but the elements are rearranged. There are _______ numbers of each atom on both sides of the equation.
What is equal
A chemical reaction does not create new matter instead it forms bonds among ___________ atoms.
What is existing