Chemical Changes
In a word equation for a chemical reaction, these are the substances on the left.
What is a reactant?
The force of attraction that keeps positive and negative ions together in a compound.
What is an ionic compound?
This occurs when attractive forces form between molecules instead of between atoms.
What is a hydrogen bond?
This is the name of the strand that science is?
What is research?
This is what you call an atom with a negative charge.
What is a negative ion or anion?
In a word equation for a chemical reaction, these are the substances on the right.
What is the product?
These form between atoms of nonmetals when they share valance electrons.
What is a covalent bond?
This is what the solid form of water is called.
What is ice?
This is a model of an atom in which each dot represents a valence electron.
What is an electron dot diagram?
This is the concave curve in the upper surface of water in a measuring cup.
What is Meniscus?
When there is the same number of atoms of each element on both sides of the equation this has occurred.
What is a balanced equation?
An attraction between the shared electron and protons in each nucleus that hold atoms together.
What is a covalent bond?
This the process of getting rid of hard water.
What is softening water?
Ionic and polar substances can do this to each other.
What is dissolve?
Freebie!!
Freebie!!
New substances formed as a result of a chemical change.
What is a product?
The attraction of positive metal ions or the valance electrons of neighboring metal ions.
What is metallic bond?
The most stable electron configuration of atoms occurs when their highest energy level has this.
What is a full set of electrons?
Last week in class we you performed this experiment with your partners.
What is experiment 4.1?
Water molecules are closer together when water is in this state.
What is a liquid?
What is the Chemical formula for water?
What is H2O?
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Freebie!!!!
Water molecules are further away when water is in this state.
What is a solid?
This is a document you create after performing an experiment and compiling your information.
What is a lab report?
Living organisms survive in lakes in the water because of this.
What is ice forming on the surface of the water creating insulation? (pg 136)