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WorksheetsChemical Reactions
Total questions: 8
Worksheet time: 4mins
Combining substances to form new substances is called
Chemical reaction
Physical reaction
Exothermic reaction
Endothermic reaction
Reaction where heat is released.
Chemical reaction
Physical reaction
Exothermic reaction
Endothermic reaction
Put these in order from smallest to largest
Electron
Compound
Atom
Electron
Atom
Compound
Atom
Compound
Electron
Compound
Atom
Electron
What are the three types of elements?
Metals - Noble gases - Alkali metals
Solid - Liquid - Gas
Metals - Non-metals - Metalloids
Water - Hydrogen - Oxygen
A bond where electron(s) are shared:
Ionic bond
Covalent bond
Synthetic bond
James bond
A bond where electron(s) are stolen:
Ionic bond
Covalent bond
Synthetic bond
James bond
What is the conservation of matter?
A place to preserve wildlife
A non-liberal person
Matter cannot be created or destroyed
An object at rest stays at rest unless acted upon by an unbalanced force
How many hydrogen atoms are in 2H2+O2?
2
4
6
1
