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Chemistry, 21.06.2019 17:00
Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects
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Chemistry, 22.06.2019 12:00
Which of the following units is not an official si unit? mole liter kilogram ampere
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Chemistry, 23.06.2019 06:50
What is the volume of 3.2 moles of chlorine gas (cl2) at 295 k and 1.1 atm?
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If 34.7 g of agno₃ react with 28.6 g of h₂so₄ according to this unbalanced equation below, how many...
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