Vocabulary
A measure on how much matter is in an object.
What is Mass?
What is the formula for Area?
What is Length X Width?
People feared that Christopher Columbus would fall of the edge of the earth if he tried to sail around the world.
False
Rust has the chemical formula Fe2O3. How many atoms (total) are in a molecule of rust.
What is 5 atoms?
A chemical is in its liquid phase. Are its molecules closer together or farther apart compared to when it is in a gas phase?
What are closer together?
A unit of measurement produced by the mathematical combination of simpler units
What is a derived Unit?
What is the volume of a building that is 25m wide, 10 m long, and 4m tall?
What is 1000m3?
Volume: L*W*H
In a lab notebook, you read a measurement that is listed as 100ml. in this Scenario you would be measuring Volume.
True
You might have some Epsom Salt in your medicine cabinet. Each molecule has one atom of magnesium (mg), one atom of Sulfur (S), and four atoms of oxygen (O). What is its chemical formulas?
What is MgSO4?
Do the atoms move around more or less when it is a liquid as compared to when it is a gas?
What is move more slowly?
Measurement Units defined by Great Britain in 1825
What are Imperial Units?
What is the Area of a room that is 5m wide and 3m long?
What is 15M2?
A measure of the energy associated with the random motion of a substance’s molecules is its temperature.
True
Coal has a formula of CuFeS2. How many of each atom is there?
What is
1 Cu
1 Fe
2 S
What is the density of a 120 g object that takes up 135 mL of space?
What is 0.89 g/ml
D= M/V
Define Heat.
Energy that is exchanged because of a difference in temperature or a change in phase
A cup holds 0.312 L of water. How many CL is that?
(1L = 0.01 cl)
31.2 CL
.312 L * 1 CL = .312 CL = 31.2 Cl
1 0.01 L 0.01
If you have a gas and want to turn it into a liquid, you need to heat it up?
False
Write the Chemical formula for hydrogen peroxide.
2 Hydrogen
2 Oxygen
What is H2O2
An instrument that we use to measure temperature
What is a thermometer?
The definition of Concentration
What is the amount of a substance in a defined volume
The formula for Density
What is Density = Mass / Volume
D =M / V
An object with an density of 0.91 g/ml would float in water.
(water density is 1.0 g/mL)
True - It would float because its density is lower than waters
Write the Chemical formula for Epsom Salt: Each molecule has one atom of magnesium (Mg), one atom of sulfur (S), and four atoms of oxygen (O).
What is MgSO4
You see these measurements - what are they measuring?
14 mL
15 Kg
2 cm
What are Volume, Mass, and Distance?