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Moles & Equations

CAVA 302 303 S1U6L07 Moles and Equations

QuestionAnswer
In a chemical reaction, the arrow points to the [...]. In a chemical reaction, the arrow points to the products.
In a chemical reaction, [...] are the numbers to the left of each reactant and product. In a chemical reaction, coefficients are the numbers to the left of each reactant and product.
In a chemical reaction, the [...] tells you how much of the entire reactant or product is used/produced. In a chemical reaction, the coefficient tells you how much of the entire reactant or product is used/produced.
The numbers in subscript tell you [...]. The numbers in subscript tell you how many of the atom to their left is in the entire compound.
When balancing chemical equations, never touch the [...] numbers! When balancing chemical equations, never touch the subscript numbers!
When balancing chemical equations, you can only touch the [...]! When balancing chemical equations, you can only touch the coefficients!
In a balanced chemical reaction, the number of moles of one thing (reactant or product) compared to the number of moles of another thing is a [...] ratio. In a balanced chemical reaction, the number of moles of one thing (reactant or product) compared to the number of moles of another thing is a mole ratio.
[...] ratios give you sort of an exchange rate: put in X reactants, get Y products. Mole ratios give you sort of an exchange rate: put in X reactants, get Y products.
Mole ratios are super easy to figure out; just look at the [...] in a balanced equation. Mole ratios are super easy to figure out; just look at the coefficients in a balanced equation.
You find the exchange rate (mole ratio) between reactants and products by looking at the [...]. You find the exchange rate (mole ratio) between reactants and products by looking at the balanced equation.
The [...] reactant/reagent is the one you run out of first. The limiting reactant/reagent is the one you run out of first.
[...] is basically figuring out how much product you can get for a certain amount of reactant. Stoichiometry is basically figuring out how much product you can get for a certain amount of reactant.
The first step in any Stoichiometry problem is usually converting everything to [...]. The first step in any Stoichiometry problem is usually converting everything to moles.
We always use moles in stoichiometry because the [...] tells us how many moles of each reactant and product are involved. We always use moles in stoichiometry because the balanced equation tells us how many moles of each reactant and product are involved.
[...] can tell you how much product you can make with a known amount of reactants, or how much reactant you'll need for a certain amount of product. Stoichiometry can tell you how much product you can make with a known amount of reactants, or how much reactant you'll need for a certain amount of product.
Created by: mr.shapard