States of Matter
Free points
free points
True or False - During the process of compression, contraction, and expansion, the space between particles does not change
True
True or False - An element is a complex substance that can be broken into simpler substances.
False - Elements are simple substances that can't be broken down into simpler substance
True of False - Atoms can be destroyed and can be recreated during chemical reactions
False - Atoms cannot be destroyed/created during chemical reactions, only rearranged
Kinetic energy is energy of motion - True of False?
True <3
True or False: In a gas, particles are closely spaced and may vibrate in position but do not change relative locations
False - Particles are widely spaced and in constant motion
Substances are matters with a unique composition and distinct ___ and ______ properties
physical, and chemical
All substances are made of 100+ different ____, which combine with one another in various ways
Atoms
True of False - A mixture is a combination of two or more substances
True <3
What is temperature the measure of?
The average kinetic energy of particles
True or False - In a solid, particles are widely spaced and in constant motion.
Dissolving occurs when one substance, the ___, is reduced to particles and distributed uniformly throughout the particles of the second substance, the _____
Solute, Solvent
True of False - Energy never transfers from particles with more kinetic energy to particles with less kinetic energy
False - Energy ALWAYS transfers from more to less
Matter exists on Earth in three common phases. What three phases are they?
Solid, Gas, and Liquid
What happens to the atoms of a substance during a chemical reaction?
They rearrange
In science, "heat" refers to what?
The transfer or thermal energy due to the temperature difference between two objects - from hot to cold