Balancing Equations
Balance this equation.
__OK₃ + 3Mg --> 3MgO + 9K
3
Energy cannot be created nor destroyed.
What is the Law of Conservation of Energy?
Is this is number in standard of scientific form?
50000000000
Standard
How long can a snail sleep?
3 years
What are the names of the parts of a chemical equation?
(Hint: RAP)
Reactants, Arrow, and Product.
How many steps are there in the scientific method?
8
Put this number in scientific notation.
34700000000000000
3.47 * 10¹⁶
How many Hydrogen particles are on the reactant side?
2 Fe + 6 HC₂H₃O₂ = 2 Fe(C₂H₃O₂)₃ + 3 H₂
24
What is the fourth step in the scientific method?
Hypothesis Testing
What is the independent variable?
The factor that the scientist changes on purpose in order to form a hypothesis.
Balance this.
1 Na₃PO₄ + _ HCl → _ NaCl + 1 H₃PO₄
1 Na₃PO₄ + 3 HCl → 3 NaCl + 1 H₃PO₄
Energy cannot be ___ or ____, it can only be _____ from one object to another.
Created, destroyed, transferred.
__ NH4OH + __ KAl(SO4)2·12H2O → 1 Al(OH)3 + 2 (NH4)2SO4 + 1KOH + __ H2O
4 NH4OH + 1 KAl(SO4)2·12H2O → 1 Al(OH)3 + 2 (NH4)2SO4 + 1 KOH + 12 H2O