Weird Science
What is created when amino acids join together in chains (not peptides)?
Proteins
Matter with definite weight and volume but no definite shape is called:
liquid
In chemistry, pH stands for:
potential hydrogen
Alkalis tend to taste bitter and feel ______.
Slippery
Protons have which type of electrical charge?
Positive
All matter that is now living or was alive at one time, with carbon present, falls within the scientific division of:
Organic Chemistry
Acids tend to taste:
Sour
Strong acids, such as hydrochloric acid, and strong alkalis, such as lye, can ______ the skin.
burn
Atoms that are not missing any electrons in their outer shell and are considered electrically neutral are called:
Stable
A change of materials into another, new materials with different properties and one or more than one new substances are formed:
Chemical Change
A substance is ________ if positive and negative ions balance each other out.
Neutral
An anion is ______ ion.
negatively charged (negative) ion
Which of the following biochemical compounds form components that fill the intercellular spaces in the skin?
lipids
Pure substances are made of only one type of:
atom or molecule
A pH above 7 is considered _______.
Alkaline
In the process of oxidation, a substance loses an electron and oxygen is ______.
acquired/gained
When a substance gains an electron and oxygen is released, the process is called:
reduction
When two hydrogen atoms combine with one oxygen atom, the result is a water molecule, which is a(n):
Compound
A pH of 5 is how many times more acidic than a pH of 6?
10 Times
A molecule is two or more atoms joined together by a _______ _______.
Chemical Bond