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8th Sci Unit 7
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What is the difference between a molecule of carbon dioxide and a molecule of carbon monoxide?
Carbon dioxide has 2 oxygen atoms and carbon monoxide has 1 oxygen atom.
Element or Compound? Atoms or Molecules?
C is molecules of an element; D is molecules of a compound
Element or Compound? Atoms or Molecules
A is atoms of an element, B is molecules of a compound
Which are elements and which are compounds?
Elements - sodium, carbon, hydrogen; Compounds - water, sulfur dioxide
How many of each atom is found in these substances?
Based on the numbers
Name the metal found in one of these substances.
Magnesium (Mg)
Which element is found in three of these substances?
Oxygen (O)
What's the name for the compound containing calcium, carbon, and oxygen?
Calcium carbonate
Which elements are found in the compound aluminium sulfate?
Aluminium, sulfur, and oxygen
What is the name for the compound containing potassium and chlorine?
Potassium chloride
Match the element to its symbol. Calcium, carbon, copper, cobalt. C, Ca, Co, Cu
Carbon - C, Calcium - Ca, Cobalt - Co, Copper - Cu
What are these elements? N, Na, Si
Nitrogen, Sodium, Silicon
What are the symbols for these elements? Magnesium, oxygen, and hydrogen
Mg, O, H
What is a row in the Periodic Table?
A period
What is a column in the Periodic Table?
A group
What is a substance made up of more than one kind of atom bonded together?
A compound
What is a group of atoms bonded tightly together?
A molecule
What is the tiniest particle of an element that can exist?
An atom
What is a substance made up of only one type of atom?
An element
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