Matter Basics
Define Matter
What is anything that has mass and takes up volume?
A mixture is...
What is two or more different kinds of particles?
Density measures...
What is the amount of matter in a given volume?
4.67g / 32.8mL. Find Density and say if it sinks or floats.
0.14g/mL. The object sinks.
Three main states of matter
What is solid, liquid, and gas?
Define physical property
What is a characteristic of matter that can be observed or measured without changing its chemical identity?
A pure substance is...
What is a substance where all the particles are the same?
The formula for density
What is d=m÷v?
1.74g/mL X 63mL. Find the mass.
1.92g
Kinetic energy is...
What is the energy of motion?
Difference between qualitative and quantitative observations
What is qualitative observations describe an object, while quantitative observations include numbers and units?
Element vs. Compound
What is elements cannot be broken down further; compounds can be broken down into elements by chemical means?
Does oil float on water? Why or why not?
What is yes and because oil is less dense than water?
22.95g / 15.45cm^3. Find density. Say if it sinks or floats.
1.49g/cm^3. The object sinks.
One rule of the KMT
What is..
- particles are always moving
- matter is made up of small particles
- there is space between particles
- energy makes particles move
Give an example of a qualitative and quantitative observation
Answers may vary.
Ex. "What is the volume of the water bottle is 500ml?" and "What is the water bottle is purple?"
How to separate salt water
What is evaporation?
Units for density of liquids
What is grams per millilitre (g/mL)?
Why does smell travel across a room?
What is gas particles move freely and spread from high concentration to low concentration? (Diffusion)
The law of conservation of mass states that
What is the mass of reactants equals the mass of products?
Name 3 elements
Answers may vary!
What is hydrogen helium lithium beryllium boron carbon everywhere nitrogen all in the air oxygen so you can breathe fluorine for your shiny teeth neon to lighht up the sun sodium for salty times MAGNESIUUUUMMM
To calculate displacement you must...
What is minus the initial volume from the final volume?
97kg / 105L. Find the density. Say if it sinks or floats.
0.92kg/L. This object floats.
Gaps are left in bridges and railroad tracks for this reason
What is to allow for thermal expansion when temperatures increase?