Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
19 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
What is a chemical and not |
Everything you can hold or touch. It's not light |
|
|
|
Who put forth the atomic theory |
John Dalton |
|
|
|
What is the scientific method |
Way of learning that emphasizes observation and experiments |
|
|
|
The formula for density |
D= M/V |
|
|
|
Physical properties |
Properties which when measured do not fundamentally change the substance. |
Examples color odor melting point |
|
|
Chemical properties |
Properties which when measured do fundamentally change the substance |
Examples include flammability and reactivity |
|
|
Physical change |
Matter changes its appearance but not is composition |
|
|
|
Chemical change |
Matter does change is composition |
|
|
|
Endothermic |
Absorption of energy be a chemical system |
Solid liquid to gas |
|
|
Exothermic |
Release of energy from a chemical system |
Gas to liquid to solid |
|
|
Fahrenheit to Celsius |
Fahrenheit - 32/1.8 |
|
|
|
Wavelength |
Is the distance between adjacent wave crest |
Wavelength determines color for visible light |
|
|
Frequency |
The number of Cycles or Crest that pass through a stationary point in one second |
Wavelength and frequency are inversely proportional |
|
|
Red light has a wavelength of |
750 nm |
|
|
|
Violet light has a wavelength of |
400 nm |
|
|
|
Valence electrons are |
The electrons in the outermost principal shell |
|
|
|
Ionic bond occurs when |
Electrons are transferred |
What is a bond with a metal and non-metal |
|
|
When nonmetals bond with other nonmetals |
Is a molecular compound |
NH3 |
|
|
Avogadro's number |
6.022 X 10 to the 23rd |
|
