Synthesis or combustion: how can you tell?
A reaction can be named by its pattern, not its colors or smells. Look at how many substances come in and how many go out.
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1 lesson for “Types of chemical reactions”
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Why can't you balance by changing H2O to H4O2?
Water is H2O, not H4O2. Learn how coefficients balance an equation without inventing new molecules.
Try this lessonWhat is the second product of acid plus base?
Acid and base do not vanish. Their ions trade partners and become a salt and water. Fill in the two products.
Try this lessonCan one kind of rock become another?
You said granite stays granite forever. Given enough time, granite can become sediment, or metamorphic rock, or magma, and back again.
Try this lessonDoes doubling pressure double the volume?
Double the pressure and the volume halves; double the kelvin temperature and it doubles. Match each law to its direction.
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