All About Elements
Know Your Compounds
Chemical or Physical Change
Atoms, Elements, and Compounds
100
Define element
What is a pure substance that cannot be separated into simpler substances by physical or chemical means?
100
Define compound
What is a composed of 2 or more elements that are chemically combined?
100
A ___________ change is permanent until another chemical change occurs.
What is chemical?
100
How many atoms are in Glucose: C6H12O6?
What is 24? (C=6 + H=12 + O=6)
200
The symbols of the following elements: -Oxygen -Hydrogen - Carbon -Chlorine - Aluminum
What is - O - H - C - Cl - Al?
200
Which is an example of a compound? A. Aluminum B. Gold C. Sodium D. Water
What is D. Water?
200
A pencil breaking
What is physical change?
200
The letters in the chemical formula H2O stand for: A. Mixtures B. Compounds C. Elements D. Molecules
What is C. Elements?
300
How many different elements make up the new compound: NOClOCSiFNa
What is 7? (N-O-Cl-C-Si-F-Na)
300
Name the elements in the following compound and state how many atoms the compound has: CaCO3
What is Calcium - Carbon - Oxygen 5 atoms
300
Iron rusting
What is chemical change?
300
Essential for life and found on Earth A. Elements B. Atoms C. Elements and Compounds D. Atoms and Compounds
What are C. Elements and Compounds?
400
The chemical formula for glucose is C6H12O6. How many elements are in glucose?
What is 3? (C, H, O)
400
Which of the following is a compound? A. Na2 B. H C. H2O2 D. Si
What is C. H2O2?
400
Ice melting into a liquid
What is physical change?
400
Which substance is composed from only one type of atom? A. sugar B. salt C. silver D. sand
What is C. silver?
500
True or False: Elements are made from just identical atoms and are found on the periodic table
What is True?
500
True or False: A compound is made from more than one element and formed through a chemical reaction.
What is True?
500
Burning a sugar in a flame, the sugar turns black
What is chemical change?
500
Which of the following is a compound? A. Cu B. Co C. CO D. C
What is C. CO?
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