Balancing equations
What does it mean when an equation is balanced?
There is the same number of each element on both sides of the equation.
What type of reaction is this?
2Mg+O2→2MgO
synthesis reaction
The first American film to show a toilet on screen is?
Psycho (1960)
What do you need to do Stoichiometry
A mole ratio
What does a limiting reactant do?
Limits how much product can be made
Balance the equation
Mg+O2→MgO
2Mg+O2→2MgO
what type of reaction is this?
C6H12O6 + 6O2 → 6CO2 + 6H2O
Combustion
What was Sam Raimi's first movie and when did it come out?
The Evil Dead, October 15, 1981
How is stoichiometry used in real life?
To make anything that is chemically engineered.
If one reactant is the limiting reactant what is the other?
The excess reactant.
what part of an equation can you change?
The coefficient.
What type of reaction is this?
CuCl2(aq) + 2 AgNO3(aq) → Cu(NO3)2(aq) + 2 AgCl(s)
double-displacement
How many people die in the movie Chopping Mall and what was the tagline for the movie?
9, Where shopping costs you an arm and a leg.
What does stoichometry deal with?
The relation of two substances.
Why is the theoretical yield and actual yield not the same?
Conditions can't be perfect.
Balance the equation
CaCl2 + Na3PO4 → Ca3(PO4)2 + NaCl
3 CaCl2 + 2 Na3PO4 → Ca3(PO4)2 + 6 NaCl
What are the five* types of reactions?
Synthesis, decomposition, single displacement, double displacement, acid-base, combustion
How many people died in the movie The Purge
47
2Na(s)+2HCl(aq)→2NaCl(aq)+H2(g)
How many grams of NaCl will form from 22.99 grams of Na?
58.44 g NaCl
Which reactant is the limiting reagent?
C12H22O11 + 12O2 ---> 12CO2 + 11H2O
there are 10.0 g of sucrose and 10.0 g of oxygen reacting. Which is the limiting reagent?
The oxygen
How does a balanced chemical equation show conservation of matter?
In the equation none of the elements have been destroyed or created and all the elements are transferred to the products.
How can a classification system for chemical reactions help to determine the products of a chemical reaction?
Some chemical reactions only give certain products.
What are the coordinates of Kyrgyzstan
41.2044° N, 74.7661° E
Why is it essential to determine the relationship of reactants and products in terms of moles?
It tells us the amount of molecules of reactant make how many molecules of product.
How do limiting reactants predict the amount of product will form?
The product can't make more than the limiting reactant can will let.