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ROD Vocab
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100

A MIXTURE of two or more substances that are evenly mixed.

Solution

100

Warming a pot of salted water on the stove.

INCREASE the rate of dissolution

100

Identify the coefficient: 7H2SO4

The coefficient is 7.

100

Calculate the total number of atoms: 2Na2(SO3)2

Total atoms = 20

100

Vocab: The small number following an element tells how many atoms of that element. 

Subscript

200

The substance that is DISSOLVED into a solution.

Solute

200

When making Kool-aid I poured a Kool-aid packet into ice cold water.

DECREASE the rate of dissolution. 

200

Identify the subscript for Oxygen: CaCO3

The subscript of Oxygen is 3.

200

Calculate the total number of atoms: 3Sr(HPO4)3

Total atoms = 57

200

Vocab: The large number in front of a chemical formula.

Coefficient

300

The substance that DISOLVES another substance.

Solvent

300

Breaking a bath bomb into multiple pieces before putting it in the tub.

INCREASE the rate of dissolution.

300

Identify the coefficient: Fe2O3

The coefficient is 1.

300

Calculate the total number of atoms: 6Ba3Cd(PO3)4

Total atoms = 120

300

You have three glasses:

Glass 1 = Powdered sugar

Glass 2 = Granulated sugar

Glass 3 = Sugar cube

If each glass is filled with the same amount of water, which glass will dissolve the fastest? 


Glass 1, with powdered sugar, will dissolve the fastest.

400

The process of DISSOLVING a substance.

Dissolution

400

My sister was crying for hot chocolate so I began stirring her drink more quickly.

INCREASE the rate of dissolution. 

400

Identify the total subscript of Hydrogen: CH3OH

The total subscript for Hydrogen is 4.

400

Calculate the total number of atoms: 4(Na2Ca)2AlF6

Total atoms = 52

400

You have three glasses of water: 

Glass 1 = 10*

Glass 2 = 46*

Glass 3 = 92*

If each glass is filled with the same amount of water, which one will a tablespoon of sugar dissolve into most slowly?

Glass 1 (10*) will dissolve the sugar most slowly.

500

The ratio of solute in a solution.

Concentration

500

I dropped a sugar cube into cold water and didn’t stir.

DECREASE the rate of dissolution.

500

Identify all of the coefficients and subscripts for the following formula: 3C12H22O11

The coefficient is 3.

The subscript for Carbon is 12.

The subscript for Hydrogen is 22.

The subscript for Oxygen is 11.

500

Calculate the total number of atoms: 2(PO4)2(NaCl2)2

Total atoms = 32

500

Calculate the total number of atoms: 3CH8N3O3P

Total atoms = 48