chapter 10 Flashcards
What are physical properties?
weight, volume, color, boiling point, melting point, describe a substance without reference to another substance.
What is a chemical property?
the behavior of a substance when it reacts or combines with another substance
Two or more elements combine to form what?
a compound
What is the basic property of an element?
an atom
what is the smallest unit of a compound
molecule
The metric system has basic units of measurement for __________________
length, mass, and volume
1 cm3 = ____ ml
1 ml
1 L = _____ cm3 or _____ ml
1000
What is matter?
Matter is anything that has a mass and occupies space.
What is an element?
An element is the simplest substance known and provides the building block from which all matter is composed.
What is a compound?
A compound is a pure substance composed of one or more elements.
What is temperature?
Temperature is a measure of heat intensity, or the hotness or coldness of a substance.
What is the freezing point of water
0 C
What is the boiling point of water
100 C
What is weight?
Weight is the force with which gravity attracts a body.
What is mass?
Mass refers to the amount of matter an object contains independent of gravity.
Whats an atom?
Particles that made up everything around us.
What are atoms made up of?
Protons (positive charge)
Neutrons (neutral charge)
Electrons (negative charge)
What is the formula for density?
D= M/V
Do elements in the neutral state have the same, less, or more electrons than protons
same
The atomic number is equal to
The amount of protons
How do you find the amount of neutrons?
atomic mass - atomic number
What is the Thomson Experiment
Experiment proved atoms are made up of dense nuclei. When alpha particles go through a gold nucleus they either pass, are diverted, or bounced back.
What is a cation?
Positively charged,missing electrons (less electrons than protons)
What is a anion?
Negatively charged, add electrons
What are gas molecules like?
Gas Molecules are spread apart and floating in the air
What are liquid molecules like?
Liquid molecules takes the shape of the container but only where the liquid is
How does a liquid molecule become a gas molecule
When liquid molecules are spread apart and get suspended in the air they become gas
What are solid molecules like
Solid molecules have organized structures, well defined dimensions, keep their shape and are attracted to one another.
1 liter equals to ______ milliliters
1 Liter = 1000 milliliters
1 milliliter = _____ microliters
1 milliliter = 1000 microliters
2.5 Liters = ______ CM3(Cubic centimeters)
2.5 Liters = 2.5 CM3(Cubic centimeters)
1 Kilometer = _______ meters
1 Kilometer = 1000 meters
1 meter = _______ centimeters
1 meter = 1000 centimeters
1 meter = _____ decimeters
1 meter = 10 decimeters
1 inch = ______ centimeters
1 inch = 2.54 centimeters
1 centimeter = ________ millimeters
1 centimeter = 10 millimeters
1 kilogram = ________ grams
1 kilogram = 1000 grams
1 gram = __________ milligram
1 gram = 1000 milligram
1 milligram = _______ micrograms
1 milligram = 1000 micrograms
1 pound = _______ kilograms
1 pound = 0.455 kilograms
What is the formula to find the volume of a cube
V= a^3
What is the formula to find the volume of a rectangle
V= Length x Width x Height
How do you convert celsius to kelvin?
K= C+273.15
How do you convert Fahrenheit to celsius
C= 5/9(F-32)
How do you convert Celsius to Fahrenheit
F= 9/5(C+32)
What is the theory of light
Visible light ranges in color formed red to violet in the electromagnetic spectrum, as electromagnetic radiation moves through space
True or False: Most of the light spectrum is invisible to the human eye
True
What is FTIR Spectrum
technique that measures frequency of vibration of molecules
What is UV-Vis
how much light has been absorbed
wavelength number determines ________
energy
Shorter wavelength number the _________the energy
higher
