chemical/physical properties/changes
Phase/State Changes
Matter/Density
pH
Solutions/ Solubility
100
Is chicken noodle soup a pure substance or a mixture?
A mixture
100
Is the following a physical or chemical change: You watch solid carbon dioxide change into its gaseous form.
Physical changes
100
What is the smallest unit of matter?
An Atom
100
What is the description of a 7 pH (acidic, basic, neutral solution)?
A neutral solution
100
What is the universal solvent?
Water
200
Classify glucose (C6H12O6) as a pure substance (PS-> Element, Compound) or a Mixture (M-> homogeneous, heterogeneous)
Pure Substance -> Compound
200
Classify the following as either a physical or chemical change: A plant uses sunlight to make energy by photosynthesis.
Chemical change (a new substance is produced)
200
What does the law of conservation of matter state?
Matter cannot be created nor destroyed
200
Name at least 3 properties of acids (like pH range, how do they taste, what color do they turn on litmus paper)?
They are sour, ranges from 0-6, they are red/orange/yellow, etc.
200
If you wanted to dissolve a solute quickly, would you use cold or hot water?
hot water
300
A property of matter that can be observed WITHOUT changing the identify of the matter is known as a _______ property.
Physical Property
300
What state of matter takes the shape and volume of its container + molecules have high kinetic energy and are far apart?
A Gas
300
Write a definition of matter.
Matter is anything that has mass and takes up space (volume)
300
What is the range for a basic/ alkaline solution?
a pH greater than 7 to 14
300
Solutions are mixtures that make a heterogeneous or homogeneous mixture?
Homogeneous Mixture
400
State changes and density are _______ properties.
physical properties
400
What state has a fixed volume and fixed shape + Molecules has little kinetic energy and are close together?
A Solid
400
A 225 mL of sample of automotive antifreeze has a mass of 243g. What is the density of automotive antifreeze? Give your answer to the hundredths place. D=m/v
1.08 g/mL
400
Is Coffee (pH=5) an acidic, basic, or neutral solution?
An acidic solution
400
Kool Aid is mixed in water to make a solution. Identify the solute (u) and the solvent (v)?
solute-kool aid powder
solvent-water
500
The reaction with sulfur (tarnishing), rusting, and flammability are physical or chemical properties?
A chemical properties
500
What is the state that has a fixed volume but take the shape of its container + molecules have kinetic energy and are moderately spaced?
A Liquid
500
Substance B
500
Is beach (pH=12) an acidic, basic, or neutral solution?
A Basic Solution
500
Sugar Water is a solution. Is sugar water a heterogeneous or homogeneous mixture
Homogeneous Mixture