Vocabulary
Chemical equations
Reaction Types
Balancing
Misc.
100
What is a chemical equation?
Symbols and formulas that show what compounds are reacting and which are being produced
100
What are the products and what are the reactants in the following chemical equation? HCl + NaOH --> NaCl + H2O
Reactants: HCl and NaOH Products: NaCl and H2O
100

Ca +NaCl -->CaCl2 +Na 

is what type of reaction?

single-replacement

100

FeBr3+Na -->Fe+NaBr 

Balance this equation

FeBr3 + 3Na --> Fe + 3NaBr

100
If a chemical reaction produces water, does it ALWAYS mean it was a combustion reaction?
No
200
Which of these is NOT diatomic? N2, H2, S2, O2
S2
200
When balancing a chemical equation, you can change the subscripts of the compounds. True of False?
False
200
What is the generic equation for a decomposition reaction?
AB --> A + B
200

Balance the following chemical reaction.

C + S8 --> CS2

4C + S8 --> 4CS2

200
When we put an element by itself in a chemical equation, we must include a charge. True or False?
False
300
2CH4 The four in this chemical equation is called a what?
subscript
300
Ca3(PO4)2 What are the two ions in this compound and how many of each ion are there?
Ca: 3 PO4: 2
300
What are ALWAYS the two products of a combustion reaction?
CO2 and H2O
300

Balance the following chemical equation.

Fe +H2O -->Fe2O3 +H2

2Fe + 3H2O --> Fe2O3 + 3H2

300
The higher up on the activity series list, the (more/less) active the element is.
more
400
If you see a "(aq)" in a chemical equation, what does this mean?
aqueous (dissolved in water)
400
Which is NOT a way to tell if a chemical reaction has occured? heat, color, smell, bubbles
Smell
400
What happens in a double replacement reaction?
The ions from each compound switch partners
400

Balance the following chemical equation.

NaOH+HCl-->NaCl +H2O

Already balanced

400
If Ni is higher up on the activity series than Cu, which will end up in the compound as a product?
Ni
500
The word "synthesis" means to ___________________.
combine
500
When we balance a chemical equation, which law are we enforcing?
Law of conservation of mass
500

HCl+NaOH-->

NaCl+H2O 

is what type of reaction?

Double-replacement

500

Balance the following chemical reaction

Al(OH)3+H2CO3-->

Al2(CO3)3+H2O

2Al(OH)3 + 3H2CO3 --> Al2(CO3)3 + 6H2O

500
Which is the most reactive element? Al, Mg, Rb, or H2
Rb
M
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