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acids bases and salts

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  • It reacts with an acid to form a salt
    base, alkali, metal, metal oxide, metal hydroxide
  • What is formed by ; Cu+HCl
    Cu doesn't react with acids
  • Metals form oxides that are solids. If they dissolve in water, these oxides give _______ solutions.
    alkaline
  • On the pH scale, what does the colour red signify?
    strong acid
  • A solution with a high pH would be an acid or base?
    base
  • If something has a pH of 8, is it a strong base, weak base, strong acid or weak acid?
    weak base
  • What is formed when a carbonate reacts with an acid?
    carbon dioxide, salt and water
  • Non-metals generally form _______ oxides that dissolve in water to form _______ solutions.
    acidic
  • On the pH scale, what does the colour green signify?
    neutral
  • A......... is a compound made from an acid when a metal takes place of the....in the acid
    salt ; hydrogen
  • Name the gas that will given off when an acid reacts with a carbonate.
    carbon dioxide
  • What two products do you make when an acid and metal reacts?
    salt and hydrogen
  • What kind of ions do BASES have?
    (OH-) Hydroxide ions
  • sodium carbonate + hydrochloric acid ->
    sodium chloride + carbon dioxide + water
  • If we add sodium hydroxide to water, what happens to the pH of the solution? Does it become more acidic or more basic?
    More basic, the pH level increases
  • Acids turn litmus paper _____.
    red
  • aluminium chloride is a salt formed when aluminium metal is added to ...
    hydrochloric acid
  • If we add hydrochloric acid to water, what happens to the pH of the solution? Does it become more acidic or basic?
    More acidic, the pH level decreases
  • What is the pH level of water?
    7
  • On the pH scale, what does the colour blue signify?
    weak base
  • name the metal salt that produced by the reaction of metal and hydrochloric acid
    metal chloride
  • Write the chemical formula of Potassium Hydroxide?
    KOH
  • Alkalis turn litmus paper ______.
    blue
  • Anything with a pH lower than 7 is considered a(n):
    acids
  • The strength of an acid or base depends on the concentration of:
    ions
  • How can we use litmus paper to test the pH of gases?
    The litmus paper must be damp.
  • what is the name of reaction when an acid reacts with a base?
    neutralisation
  • Not all oxides are basic, such as Nitrogen dioxide and Carbon dioxide. However, Calcium oxide is an example of a base. How do we know this?
    Calcium is a metal. The oxides (and hydroxides) of metals are bases.
  • What kind of ions do ACIDS have?
    H+ (hydrogen ion)
  • HCl + NaOH -->
    NaCl + H2O
  • magnesium oxide + sulfuric acid
    magnesium sulfate + water
  • What do you mean with neutralization reaction?
    A reaction between an acid and base to form salt and water
  • what is formed when sodium hydroxide and hydrochloric acid react with each other?
    sodium hydroxide and water
  • Anything with a pH higher than 7 is considered a(n)
    base
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