Chemistry revision Crossword
This printable crossword puzzle on the topic of Chemical Bonding & Reactions has 15 clues. Answers range from 4 to 18 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
A Very small particle
Made of one type of atom
Made of two or more different types of atoms chemically joined together
Different elements or compounds mixed together
Fill in the blank - color _______
Fill in the blank - effervescence or _________
what is a group in the periodic table
What is a row in the periodic table called
No atoms are lost or gained during a chemical reaction, they are just rearranged to make new products.
when fuel reacts with oxygen in the air and releases heat energy. It is an example of an exothermic reaction.
A reaction in which a substance gains oxygen.
Magnesium + Oxygen ----> _______
Reactions give out heat to the surroundings
Reactions take in heat from the surroundings
This means adding more of a reactant than is necessary.
