Measurements/Sig Figs
Dimensional Analysis
Classification of Matter
Chemical vs Physical Properties
Chemical vs Physical Changes
100
This type of measurement is descriptive (aka, no numbers are involved)
What are qualitative measurements?
100
The three base units we will typically use dimensional analysis for.
What are grams, liters, and meters?
100
The three main states of matter.
What are solids, liquids, and gasses?
100
The difference between physical properties and chemical properties.
Physical: Properties that can be measured or observed without changing the identity of a substance.
Chemical: Properties that indicate how a substance reacts with another substance.
100
Baking and slime making--PC or CC?
What is CP?
200
This type of measurement is made with a measuring instrument and includes both a number and a unit
What are quantitative measurements?
200
Where you put the 1 when writing the next step to a dimensional analysis problem.
What is the bigger unit?
200
The difference between an element and a compound.
Element: One singular type of atom in a substance.
Compound: Multiple types of elements that are chemically bonded.
(What is)
200
Flammability--PP or CP?
What is CP?
200
The difference between physical changes and chemical changes.
Physical changes: Changes in appearance without changing composition
Chemical changes: One or more substances react to form new substances with different chemical and physical properties
300
Convert 0.00000629 into scientific notation.
What is 6.29E-6?
300
Convert 3.5m to cm.
What is 350cm?
300
The difference between homogenous and heterogenous mixtures.
Homogenous: Uniform mixture where the parts cannot get picked out.
Heterogenous: Non-uniform mixture where the parts can get picked out.
(What is)
300
Freezing point: PP or CP?
What is PP?
300
Burning toast: PC or CC?
What is PC?
400
How would we record the length of this leaf? (in cm)
What is ~3.61cm?
(Two certain digits and one estimated digit)
400
Convert 2.5Mg to mg.
What is 2.5E9mg?
400
The difference between compounds and mixtures.
Compounds: Elements are bonded together
Mixtures: Elements and compounds alike are blended together.
(What is)
400
Magnetism: PP or CP?
What is PP?
400
Eating AND THEN digesting chips and guac.
What is PC AND CC?
500
Determine if these three measurements of a 35g mass is accurate and/or precise:
Measurement 1: 20.00g
Measurement 2: 19.89g
Measurement 3: 21.01g
What is "not accurate but IS precise"?
500
How many seconds is 2.5 weeks?
What is 1.512E6?
500
The atomic difference between a solid and a liquid.
What is the atoms in solids are more tightly packed together than in liquids and therefore cannot move around the same way atoms in liquids can--this is why solids cannot change shape while liquids can.
500
Name three physical properties and two chemical properties of water.
Physical: Tasteless, odorless, liquid
Chemical: Reacts with acid, not flammable
500
Which is not an example of physical changes: Evaporation, rusting, condensation, dissolving
What is rusting?