Which property is typical of bases?
- AThey feel slippery
- BThey taste sour
- CThey have a pH below 7
- DThey turn blue litmus red
Which property is typical of bases?
How many electrons are shared in a double covalent bond?
What is the half-life of a radioactive isotope?
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Uranium-235 and uranium-238 both have 92 protons. How many more neutrons does an atom of uranium-238 have?
What is the conjugate base of nitric acid, HNO₃?
In the reaction NaCl(aq) + AgNO₃(aq) → AgCl(s) + NaNO₃(aq), which ions are spectator ions?
Na⁺, Mg²⁺, F⁻ and O²⁻ all have 10 electrons. Which ion is the largest?
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