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Chemistry, 22.06.2019 03:00
Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture
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Chemistry, 22.06.2019 18:30
Which of the following words describe the reality that the universe looks the same from various perspective
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Chris is about to do an experiment to measure the density of water at several temperatures. his teacher has him prepare and sign a safety contract before beginning the experiment. which term is mostlikely part of the safety contract
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Chemistry, 23.06.2019 15:30
Select the correct answer.the gas in a sealed container has an absolute pressure of 125.4 kilopascals. if the air around the container is at a pressure of 99.8 kilopascals, what is thegauge pressure inside the container?
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Define PEP treatment and ART treatment...
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