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what is chemistry
Atoms
States of Matter
Elements
pH
100
This branch of science deals with the composition, structure and properties of matter and how matter changes under different conditions.
What is Chemistry.
100
These are the particles from which all matter is composed.
What is atoms
100
This state of matter has a definite shape, ice is an example.
What is Solid
100
this is a colorless odorless tasteless gas and is the lightest element known.
What is Hydrogen
100
What is the pH of the skin
What is 5.5
200
this is the study of substances that contain the element carbon
What is Organic chemistry
200
How many elements are naturally occurring ?
What is 90
200
This state of matter has a definite size but not a definite shape.
What is Liquids
200
This is a colorless gaseous element it make up about 4/5 of the air in out atmosphere and is found chiefly in the form of ammonia and nitrates.
What is Nitrogen
200
On a pH scale what is neutral
What is 7
300
This is the branch of chemistry dealing with compounds that do not contain the element carbon, bit may contain the element hydrogen.
What is Inorganic chemistry
300
This is formed by joining two or more atoms chemically.
What is molecule
300
This state of matter does not have a definite size or a definite shape. steam is an example
What is Gases
300
This is the gaseous mixture that makes up the earths atmosphere.
What is Air
300
This type of paper is used to test the pH of a product
What is litmus
400
This is any substance that occupies space and has mass(weight)
What is Matter
400
What are the two types of molecules? You must get both answers correct or you will loose points.
What is Elemental molecules and Compound molecules
400
What is the most abundant element on earth?
What is Oxygen
400
This is the most abundant of all substances comprising about 75% of the earths atmosphere.
What is Water
400
the pH scale is known as a ___________ scale
What is logarithmic scale, this means that a change of one whole number represents a tenfold change in pH.
500
This is the simplest form of chemical matter, It cannot be broken down into a simpler substance without a loss of identity.
What is an element
500
All matter exists in one of three different physical forms, ( you must get all three correct to get the point)
What is Solid , Liquid, Gas
500
Physical properties are characteristics that can be determined without a chemical reaction and that so not cause a chemical change in the identity of the substance. Name three physical properties
What is color, odor, weight, density, specific gravity, melting point, boiling point and hardness
500
This is a chemical compound of hydrogen and oxygen, is a colorless liquid with a characteristic odor and slightly acid taste.
What is Hydrogen Peroxide
500
What does pH stand for
What is Potential Hydrogen, pH represents the quantity of hydrogen ions.