Section 3- Basic Chemistry

This is formed when two or more elements chemically combine:

Which cannot be broken down into more simple substances without losing its identity?

There are _____ forms that matter can exist in.

Oxygen and hydrogen combining to form water is an example of:

Atoms contain:

Which is the chemical symbol for iron?

what is all matter made up of?

Water freezing into an ice cube is an example of:

How many more times acidic is a pH of 3 than a pH of 4

The pH scale measures which of the following?

What are the three main parts of an atom?

_____ is a solid hydrocarbon.

The chemical, _____ consists mostly of hydrocarbons.

What is the science of matter and its interactions with energy and itself?

What is the pH of the skin mantle?

Which of the following is the element that verifies if something is or was alive?

When there is a change in a substance's chemical composition, there is a:

If a substance can dissolve another substance without changing its chemical composition:

The pH of the skin and hair is within what range?

All things that are currently alive or were once alive contain:

__ is when a change occurs in a substance that results in creating a new substance which has properties or ….

What element is the most abundantly found whether free or in compounds?

An _____ is the outside part of an atom around the atomic nucleus.

Which of the following would the study of minerals involve?

When a solute mixed in a solvent is inclined to separate if left standing:

What is the combining power of elements?

When a solute is dissolved in a solvent it is:

The dense center of atoms which contains protons and sometimes neutrons is called the:

It is a _____ if one can see undissolved particles with the naked eye.

_____ can change without involving a change in chemical composition.

The compound _____ is a hydrocarbon.

Which of the following choices is NOT an element?

Ointments are mixtures of organic substances and:

Which of the following is regarded as a universal solvent?

What form of matter is skin?

What is the number on the pH scale designating a neutral pH?

Which of the following is NOT a compound?

Organic compounds:

Unstable atoms seek out other atoms that they can share ___ with in order to complete their outer shell.

Miscible liquids are capable of being:

The atomic number of an element indicates how many ___ are in the nucleus of an atom of that element.

When a product contains particles that don't separate when standing, it is known as a:

When all parts in an emulsion are of the same size:

An ___ is an atom or group of atoms that bears an electric charge.

Which of the following is the positively charged particle in the nucleus of an atom?

Which of the following is the gaseous mixture that the earth's atmosphere consists of?

Which of the following is missing in the outer shell of an unstable atom?

Only matter which contains water and/or that dissolves in water is capable of an acidic or ____ nature.

When two or more kinds of substances combine physically it forms a:

A pure substance is:

What is the valency of oxygen?

Aggressive, unstable oxygen containing molecules are known as:

Which of the following apply to the pH scale?

What part of the atom are neutrons and protons found in?

The pH of pure water is:

Which of the following is the study of all matter that is or was living and contains carbon?

_____ causes iron to rust.

Which of the following is NOT true regarding an emulsion?

What is the scientific study of the composition of substances and their effects on each other?

The atomic number is the number of _____ found in the nucleus of an atom.

When two unstable atoms combine and make more complex units, the more complex units are known as:

The science that deals with compounds lacking carbon is?

What is the basic unit of matter- the smallest part of an element that can exist?

Which part of the atom has a negative charge?

When a solution has a large quantity of solute in proportion to the quantity of solvent it is:

The reason an atom is electrically neutral is because it:

When a homogenous mixture cannot mix under normal conditions, it is:

_____ is anything that occupies space and has mass.

Which of the following has no electrical charge and helps in determining the weight of an atom?

A solid which has been dissolved in a liquid, or a mingled mixture of two or more liquids is:

If liquids are incapable of being blended or mixed into stable solutions, they are:

Out of the following acids, which is the most abundantly found in fats and oils derived from animals and plants?