ECM?
A milk tea with boba pearls is an example of this type of mixture.
Heterogeneous
This vocabulary word describes the particular shine that metals have.
Luster (not sparkly!)
Your professor handed you your quiz back and you rip it into pieces and threw it in the trash. :( What kind of change is this and why?
Physical - changing size, not the substance itself
(It also doesn't change your grade...)
This is the base unit in the metric system for measuring length.
meter
The simplest particle of an element is called...
an atom!
O2 is an example of what type of substance?
Element
(Make sure to memorize diatomic elements!)
Sodium is a ____________.
Metal, nonmetal, or none of these?
metal
You mixed baking soda with vinegar several times today! What kind of change is it and why?
chemical - bubbles formed
1000
This type of energy describes the energy of matter in motion.
Kinetic energy
Water is an example of what type of substance?
Compound
Hydrogen is a ____________.
Metal, nonmetal, or none of these?
Nonmetal
Uh oh! You forgot to turn off the stove and your fried egg is now burnt! What kind of change is this and why?
Chemical - color change + you performed a chemical reaction between egg and the air + heat is given off
How many mm are in 1 m?
1000
Would F and Cl have the same properties? Why or why not?
Yes, they are on the same period (column) on the periodic table.
Saline contact solution is an example of what type of substance?
Homogeneous mixture
Metals can be shaped into thin wires. What is this property called?
Part of last week's instructor demo involved distillation (the process of boiling water from a copper (II) sulfate solution and then condensing water into a test tube). What kind of changes did I perform? Why?
physical - changing states of matter
How many cubic centimeters are in 123,456 mL?
123,456 mL
(1 cm3 = 1 mL)
Water flows faster than honey. This is an example of which property?
Viscosity
Blood is an example of what type of substance?
Homogeneous mixture
Which of the following would be a great conductor of electricity?
a) Co b) CO2 c) CO d) C
a) Co (aka cobalt, a transition metal!)
Heating a nichrome wire with a Bunsen burner is an example of what type of change? Give one reason.
physical - despite the color change there was no change in composition
Pick the incorrect statement:
meter > yard
inch > centimeter
gram > ounce
liter > quart
gram > ounce is false.
1 ounce = 28.35 g
Define specific gravity.
Ratio of the density of the substance to the density of water.