When one or more substances are changed into new substances it is called this.
What is a chemical reaction?
The diatomic elements are written with one of these in a chemical equation (O2)?
What is a subscript?
What is a chemical reaction/change?
What type of reaction occurs with hand warmers?
What is an exothermic reaction?
Balance the following chemical equation. You must show all work and simplify your answer. Fe + O2 --> Fe2O3
4 Fe + 3O2 --> 2Fe2O3
O is an example of this...
What is an element?
Can be used to describe either an element or a compound
What is a substance?
A Chemical Equation shows the relationship between.....
What is the Reactants and Products?
What is an as endothermic reaction?
Balance the following equation. You must show all work and simplify your answer! ___HgO+___Cl2-->____HgCl2+____O2
2HgO+1Cl2-->2HgCl2+1O2
Please list EACH type of CHEMICAL REACTION, AND an example of each type.
Ca + S --> CaS, synthesis 2AlN --> 2Al + N2, decompostion CH4 + 2O2 --> CO2 + 2H2O, combustion 2KI + Cl2 --> 2KCl + I2, single replacement Pb(NO3)2 + 2NaI --> 2NaNO3 + PbI2, double displacement
Balance the following equation. Be sure to show all work and simplify your answer. Al2O3--->Al+O2
2Al2O3--->4Al+3O2