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mouth!), feel slippery (don’t touch acidic a substance, the more red
bases with your bare hands!), don’t the indicator will become.
change the color of litmus paper,
but can turn red litmus back to Balancing Equations
blue, conduct electricity when in a A chemical reaction can be
solution, and react with acids to described on paper by writing a
form salts and water. Soaps and chemical equation that shows what
detergents are usually bases, along you started with and how it ended
with house cleaning products like up. There’s a lot inside once of
ammonia. these equations, such as the
Bases are also electron pair donors molecules at the start of the
-
(they produce OH ions). Strong reaction, what they formed, the
bases also completely dissociate states of each molecule (solid,
-
into the OH (hydroxide ion) and a liquid, or gas), the amount of each,
cation. LiOH (lithium hydroxide), and the energy flow. When the
NaOH (sodium hydroxide), KOH equation is balanced, then the
(potassium hydroxide), math works out. Chemical
equations can be written in terms
RbOH (rubidium hydroxide), CsOH
of grams or moles.
(cesium hydroxide), Ca(OH) 2
(calcium hydroxide), Sr(OH) 2 There are three basic steps to
(strontium hydroxide), and balancing an equation:
Ba(OH) 2 (barium hydroxide). 1. Write an unbalanced
Weak bases only partly dissociate equation. Put the stuff you
in water, such as ammonia (NH 3) start with on the left side
pH stands for “power of (reactants) and the stuff
hydrogen” and is a measure of created on the right side
how acidic a substance is. We can (products). Separate them
make homemade indicators to test by an arrow to show the
how acidic (or basic) something is direction of the reaction (left
by squeezing out a special kind of to right), or with an arrow
juice (dye) called anthocyanin. facing both directions if you
Certain flowers have anthocyanin have a reaction at
in their petals, which can change equilibrium (meaning that it
color depending on how acidic the self-adjusts to go either
soil is (hibiscus, hydrangeas, and way).
marigolds for example). The more SnO 2 + H 2 Sn + H 2O
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