matter and change chapter 2 (chemical reactions (a process that involves…
matter and change chapter 2
recognizing a chemical change
Change in Temperature. A change in temperature is characteristic of a chemical change and change in color or feel
involving the rearrangement of the atoms of one or more substances and a change in their chemical
sense, a chemical process is a method or means of somehow changing one or more chemicals or chemical
a process that involves rearrangement of the molecular or ionic structure of a substance
Baking a cake.
Cooking an egg.
3 states of matter
is a substance whose atoms all have the same number of protons: another way of saying this is that all of a particular element's
Hydrogen, helium, oxygen, nitrogen, carbon, gold, silver, lead
is anything that has mass and takes up space.
Density , conductivity, color.
is matter which has a specific composition and specific properties.
include tin, sulfur, diamond, water, pure sugar
is a substance formed when two or more chemical elements are chemically bonded together. ..
Pure water is a compound made from two elements - hydrogen and oxygen. The ratio of hydrogen to oxygen in water is always 2:1.
is one of the states of matter. The particles in a liquid are free to flow, so while a liquid has a definite volume, it
s a state of matter characterized by particles arranged such that their shape and volume are relatively stable.
is defined as a state of matter consisting of particles that have neither a defined volume nor defined shape.
A mixture is a combination of two or more pure substances in which the original substances retain their chemical
mixture is a solid, liquid, or gaseous mixture
include pure water, white vinegar, sugar water, corn oil, and blood plasma.
include ice cubes in a drink, sand and water, and salt and oil
a combination of different qualities, things, or emotions in which the component elements are individually distinct.
any change of state melting boiling freezing condensation is a change
The study of the composition, structure, and properties of matter and the changes it undergoes. Anything that has mass and takes up space. Smallest unit of an element that maintains the properties of that element
law of conversation and mass
states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time,