Basic Chemistry

What is the definition of chemistry?

• The study of ancient civilizations

• The study of changes in composition and transformation of energy

• The study of celestial bodies

• The study of living organisms

What are the properties of matter?

• Boiling, Freezing, Melting

• Color, Taste, Smell

• Solid, Liquid, Gas

• Physical, Chemical, Biological

What is the smallest particle of an element that retains its chemical identity?

• Molecule

• Nucleus

• Compound

• Atom

What is the role of Analytical Chemistry?

• To study the composition of rocks and soil on Mars

• To determine the chemical identity of species in a sample

• To search for organic compounds important to life

• To explore and transmit data from Mars

compounds forming 2 or more different types of crystals

• Metamorphous

• Isomorphous

• Polymorphous

• Isomeric

What is the definition of matter?

• Anything that has color and texture

• Anything that has taste and smell

• Anything that has weight and occupies space

• Anything that has boiling and freezing points

What is the definition of a compound?

• A substance whose water solution contains a positive ion other than the hydrogen ion and a negative ion other than the hydroxide ion

• A mass of ingredients with a variable proportion

• A combination of two or more elements at a definite proportion

• A combination of atoms of the same kind or different atoms

What are the characteristics of a compound?

• They have indefinite composition at a definite proportion

• They are heterogeneous in composition

• They can be separated into their component substance by chemical means

• They have definite proportion by weight of the substance from which they were made

A substance that produces hydrogen ion when dissolved in water

• Acid

• Base

• anion

• cation

A substance that produces hydroxide ion when dissolved in water

• Cation

• Acid

• Base

• Anion