FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 2: Chemical Basis of Life

Show Answer

Share

---

All types

Filters

Study Flashcards

Question 1

True/False

Review LaterAdd Note

Review Later

A substance that releases hydrogen ions in water is a base.

A) True
B) False

Correct Answer

verified

Show Answer

Question 2

Multiple Choice

Review LaterAdd Note

Review Later

As a group,compounds that release ions when they dissolve in water are called

A) acids.
B) bases.
C) salts.
D) electrolytes.
E) solvents.

F) A) and B)
G) D) and E)

Correct Answer

verified

Show Answer

Question 3

Short Answer

Review LaterAdd Note

The atomic ________ of an atom of an element equals the number of protons and neutrons in its nucleus.

The type of chemical bond formed when ions with opposite electrical charges are attracted to one another is called ________.

An atom that has gained or lost electrons is called an ion.

Cholesterol is a protein.

Neutrons are located in the _________ of an atom and they have a "charge" that is ________.

Organic substances always contain the elements hydrogen and ________.

If two pairs of electrons are shared,the resulting bond is called a double covalent bond.

Matter is anything that has weight and takes up space.

________ are lipids used primarily to store energy for cellular activities.

A ________ formula shows how atoms are joined and arranged in various molecules.

Chemicals that resist changes in pH are called

X + Y --> XY is an example of a ________ reaction.

When atoms of different elements bond,they form molecules called ________.

Chemistry is the branch of science that deals with the composition of matter.

Atoms that lose or gain electrons become electrically charged particles called __________.

The parts of an atom that lack an electrical charge are called ________.

A chemical reaction in which pairs of two different molecules trade positions is called a(an) ________ reaction.

All matter is composed of atoms of fundamental substances called ________.