This is the study of matter.
What is Chemistry?
How tightly packed the molecules of a substance are and how much energy it takes to get the molecules to move apart.
What are the States of Matter?
The three parts of an atom: P-E-N
What are protons, electrons, and neutrons?
The universal solvent
What is water?
A change in size, shape, or state of matter of a substance.
What is a physical change?
Anything that has mass and volume or in other words, anything that takes up space and has mass.
What is matter?
Molecules of this state of matter have a strong attraction to one another, are tightly packed together with limited movement and have a definite size, shape and volume. Atomic particles have low energy.
What is a solid?
The electrons that are in the furthest energy level from the nucleus and the ones that participate in chemical reactions.
What are valence electrons?
Any substance in which a compound or solute can be dissolved.
What is a solvent?
A change in the molecular structure of a substance and usually cannot be reversed.
What is a chemical change?
color, shape, luster, elasticity, texture, smell, malleability, size, volume, temperature, mass, density, and solubility
What are physical properties of matter?
Molecules have some attraction, move freely, change shape to fill container, volume remains constant. Atomic particles have medium energy level.
What is a liquid?
The number of protons in an atom; equal to the number of electrons in a stable atom.
What is the atomic number?
Any substance that is dissolved.
What is a solute?
A process that involves the rearrangement of atoms that changes one or more substances into other substances.
What is a chemical reaction?
toxicity, electronegativity, reactivity, corrosion/oxidation, and acidity/basic/pH values
What are chemical properties of matter?
Molecules have weak attraction and move freely. They do not have a definite shape or volume. Atomic particles have a high energy level.
What is a gas?
The number of protons and neutrons in the nucleus of an atom.
What is the atomic mass?
A combination of two or more elements of compounds mixed together.
What is a mixture?
The original substances involved in and ultimately changed by a chemical by a chemical reaction.
What are reactants?
The smallest part of matter that cannot be broken down by ordinary chemical means and is the building blocks of matter.
What is an atom?
The process of a phase change that skips the liquid state; going from a solid straight to a gas.
What is sublimation?
The number of elements on the periodic table.
What is 118?
A type of mixture where one substance (a solute) is dissolved in another (a solvent).
What is a solution?
Any substance produced as the result of a chemical reaction.
What is a product?