Vocab
what is the definition of matter?
anything that has mass and takes up space
What are the types of mixture?
heterogenous and homogenous
melting point is a physical change
false, it's a physical property
How many gas laws are there
3
what is the definition of mixture?
a combination of two or more substances that are not chemically combined
solid, liquid, gas, and plasma
molecule is a group of electrons that are held together by a chemical force
false, it's a group of atoms held together by a chemical force
what are the gas laws?
Boyle, Gay-Lussac, and Charles
what is the definition of element?
a substance that cannot be separated or broken down into simpler substances by chemical means
what are the types of chemical changes
change in odor, color, heat, light, and through the production of sound
atom is the smallest unit of an element
true
A fixed amount of gas at a constant temperature the volume of a gas increases as the gas’s pressure decreases, What law is that?
Boyle's Law
what's the definition of compound?
a substance made of atoms of two or more different elements joined by chemical bonds
what are the types of chemical properties?
flammability and reactivity
chemical changes can be reversed
false, they cannot be reversed
The pressure of a gas increases as the temperature increases if the volume does not change, What law is that?
Gay-Lussac's Law
What's the definition of reactivity?
a capacity of a substance to combine chemically with another substance
what are the types of periodic trends?
atomic radius, ionization energy, and electronegativity
if it's a physical change then the identity does change
true
For a fixed amount of gas at constant pressure, the volume of the gas increases as the gas’s temperature increases, What law is this
Charles's Law