Vocabulary that Matters
When one or more substances are changed into new substances the process is called_____.
What is a chemical reaction?
In chemical reactions the ----> means _____
What is go to form?
When the number of atoms are equal on both sides of the equation/ when matter can neither be created nor destroyed, it is the law ____________
What is the Law of Conservation of Mass
The maximum amount of a substance (solute) that will dissolve in the given amount of any liquid/water.(solvent)
_______________
What is the solubility of a substance?
The number that tells how many of each type of atom are in one unit of a compound.
What is a subscript?
When the number of atoms is equal on each side we say that the equation is _____.
What is a balanced equation?
When two or more substances combine in new ways to make new substances that have different properties than the beginning substances.
________
What is a chemical reaction/change?
These are the numbers we can change to help balance chemical equations.
What are coefficients?
It is the temperature at which a solid starts to melt/become a liquid.
What is melting point?
The symbol (g) stands for this in a chemical equation.
What is a gas?
When we write "H2O" instead of water, we are writing a_____
What is a chemical formula?
In the chemical reaction, Mg + O = MgO, the compound MgO is the ______.
What is the product?
Balance the following chemical equation. You must show all work and simplify your answer. Fe + O2 --> Fe2O3
4 Fe + 3O2 --> 2Fe2O3
It consists of same atoms or molecules throughout _________
What is a substance?
The states of matter are ___________
What is liquid,solid, and gas?
When we place a coefficient in front of a "unit" (element or compound) in a chemical equation, we are __________ the number of atoms in each unit.
What is multiplying ?
Substances that are present in the beginning of the chemical reaction _________
What are reactants?
Balance the following equation. You must show all work and simplify your answer! Li + Br2 -> LiBr
2Li + Br2 --> 2LiBr
Mass per unit volume of a substance is ___________
What is density?
The basic unit of a chemical element is _____
What is an atom?
It consists of two or more different substances _____.
What is a mixture?
These 3 things are essential in writing a chemical equation.
What are reactants, an arrow, and products?
Balance the following equation. You must show all work and simplify your answer! C6H6 + O2 --> CO2 + H2O
2C6H6 + 15O2 --> 12CO2 + 6H2O
The ability of a substance to resist scratch is ________
What is hardness?
The group of atoms bonded together is called a ______
What is a molecule?