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8th grade

Chapter 15 Physical Science

QuestionAnswer
Which compounds are made of sugar? Carbohydrates used as a source of energy.
Which do not dissolve in water? Lipids
Which compounds are made of amino acids? Proteins
Which can store genetic information? DNA
What is formed from a metal and nonmetal? ionic compounds
What can be saterated and unsaturated? Hydrocarbons
What changes in the presence of either an acid or base? indicator and ph
what kind of bond is formed by a sharing of electrons? Covelant bonds
Brittleness and high melting points are properties of what kind of compounds? ionic compound
What kind of compounds rarely dissolve in water covalent or ionic? covelant
What has a sour taste and reacts with metals to produce hydrogen gas? acids
What kind of compound is slippery, bitter and high Ph? Bases
What does a strong acid do in water? H+
A neutral liquid has a pH of what? 7.0
When an acid and base are mixed together what is formed? salt
What do you call the reaction when an acid and base are mixed together? neutralization
Over 90% of compounds are what type? organic
A saturated hydrocarbon has what kind of bonds? Single covalent bond
An unsaturated hydrocarbon has what kind of bonds? Triple covalent bonds
What are DNA & RNA? and what are they known as? nucleic acid, blue print of life
Created by: chefgrace03