Chapter 10-13 Flashcards
(177 cards)
Which branch of science focuses on the study of substances that contain the element carbon?
Organic Chemistry
All living things, or things that were once alive, contain _________.
Carbon
Which of the following is not an organic substance?
Air
The study of substances that do not contain carbon but may contain hydrogen is _______
inorganic chemistry
Matter is any substance that occupies space and has _________ or weight.
Mass
Which of the following is not a chemical?
Light
Energy _________
is not matter
What is the letter symbol for carbon?
C
The smallest chemical particles of an element that retains the properties of that element is _______
an atom
What is the symbol for atmospheric oxygen?
O2
How many atoms are in a molecule?
Two or more
Millions of chemical reactions occur in the body every _______, which is what keeps us alive.
second
Common table salt is an example of ________
a compound molecule
When water boils it ______
changes it physical form to a gas
Which of the following has a definite volume, but not a definite shape?
Liquids
Weight is an example of ________
a physical property
When an abrasive file is used on the nail plate and both the nail plate and file are changed, __________ occurs.
a physical change
All atoms, elements, elemental molecules, and ______ are pure substances.
compound molecules
Salt water is an example of ________
a physical mixture
A ________ is a stable, uniform blend of two or more substances.
solution
Water and oil are _______
immiscible liquids
All matter exists in one of five different physical forms, including solid, liquid, gas, vapor, and ________
plasma
The binding agent that allows immiscible liquids to join together in an emulsion is called ________
an emulsifer
A properly formulated emulsion, stored under ideal conditions, can be stable for up to _________
3 years