Chemistry, 26.06.2019 05:40 gerardogonzale362
1. quartz crystals normally used in quartz clocks etc. is chemically a. silicon dioxide b. germanium oxide c. a mixture of germanium oxide and silicon dioxide d. sodium silicate 2. which of the gas is not known as green house gas? a. methane b. nitrous oxide c. carbon dioxide d. hydrogen
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1. quartz crystals normally used in quartz clocks etc. is chemically a. silicon dioxide b. germanium...
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