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Chapter 2 The Chemistry of Life Crossword

Across
__________ of an element contain the same number of protons, but a different number of neutrons.
A _______ is a substance that dissolves in a solution.
A pure substance that consists entirely of one type of atom.
This serves as the main source for living things.
__________ are made mostly from carbons and hydrogen atoms and are fats, oils, and waxes.
Attractions between oppositely charged regions of nearby molecules.
What macro-molecule is needed for growth and repair of the body.
The basic unit of matter.
A macro-molecule containing hydrogen, oxygen, nitrogen, carbon, and phosphorus. (DNA/RNA)
A mixture of water and non-dissolved materials.
What is one subatomic particle that forms the nucleus of an atom?
Down
What bond forms when electrons are transferred from one atom to another?
A type of mixture in which all the components are evenly distributed.
All atoms of the same element contain the same number of these.
_______________ is a simple sugar molecule.
Weak acids or bases that can react with strong acids or bases to prevent sharp, sudden changes in pH.
The __________ is a negatively charged particle.
Makes up macro-molecules.
Many of these together make up a polymer.
A weak attraction between a hydrogen atom and another atom is called a ________.
A _______ produces hydroxide ions in a solution.
________ is the attraction between molecules of the same substance.
What compound forms hydrogen ions in a solution?
What can bond with many elements to form the molecules of life?