Download Feb morning work

Monday
• Balance the following equations:
1. H2 + O2 --> H2O
2. H2O2 --> H2O + O2
3. Na + O2 --> Na2O
4. N2 + H2 --> NH3
5. P4 + O2 --> P4O10
Tuesday –
State whether or not the statement is True or False
1. The general form of a chemical equation is Reactants = Products.
2. The symbol CO2 represents two molecules of carbon monoxide.
3. The symbol 2H2 represents two atoms of hydrogen.
4. Coefficients are used to balance chemical equations.
5. In balancing chemical equations, you should use the smalles t
subscripts possible.
6. The number of each type of molecule must be the same on both
sides of a chemical equation.
7. Changing coefficients changes the substances involved in a chemical
reaction.
8. Chemists use a standard method to represent chemical reactions.
9. The chemical equation H2CO3 → H2O + CO2 is balanced.
10. Water is the reactant in the chemical equation H2O → H2 + O2.
Wednesday- True or False
1. The products and reactants of a
2.
3.
4.
5.
chemical reaction have different atoms.
All chemical reactions are reversible.
Rusting is an example of a chemical
change.
Condensation is a type of chemical
reaction.
A change in temperature is a common
sign of a chemical reaction.
Thursday
1. one reactant breaking down into two or more
products
2. two reactants changing places in two compounds
3. two reactants combining to form a single product
4. one element replaces another element in a compound
Terms
a. synthesis reaction
c. decomposition reaction
d. single replacement reaction
e. double replacement reaction
Friday
1.
A(n) __________ reaction is represented by the general equation
A + B → C.
2.
A(n) __________ reaction is the reverse of a synthesis reaction.
3.
The general equation A + BC → B + AC represents a(n)
__________ reaction.
4.
A(n) __________ replacement reaction produces two new
compounds.
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