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Any substance that occupies space and has weight_____.
Matter
What is TRUE when salt is dissolved into water?
Salt is the solute and water is the solvent
What is TRUE of solutions?
They are stable mixtures.
What does a reducing agent do?
Adds hydrogen to a chemical compound
The pH scale is used to measure _____.
Acidity and alkalinity
What is the simplest form of chemical matter?
An element
What is TRUE of all liquids?
They are either miscible or immiscible.
What was the first surfactants?
Soaps
For what purpose would acids most likely be used?
To exfoliate the skin
What does an oxidizing agent do?
Release oxygen
How many elements are known to science today?
118
When immiscible liquids are combined, they form_____.
Suspensions
_____ is capable of igniting and burning.
Combustible
All acids owe their chemical reactivity to _____.
The hydrogen ion
What is an example of a compound molecule?
Common table salt
_____ are the basic units of matter.
Atoms
What is a solute?
A substance that is dissolved in a solvent
What best describes a carcinogen?
A substance that causes cancer
The overexposure principle is used to describe how overexposure determines _____.
Toxicity
If you were to leave the freezer open all night, all of the ice will melt. This is a result of _____.
An endothermic reaction
What is an example of a chemical change?
Exposed metal rusting
What is a solvent?
A substance that dissolves a solute to makes a solution
When mixing chemicals, one should _____.
Use a measuring device, such as a measuring cup or spoon.
pH is an abbreviation of _____.
Potential hydrogen
Acid-alkali neutralization reactions occur when an acid is mixed with an alkali in equal proportions, balancing the total pH and forming water (H2O) and ____.
Salt