SAT, 05.10.2021 23:00 abelxoconda
calcium sulfate is known to form hydrates (ionic compounds with water that have well-defined ratios of the ionic formula unit to molecules of water, written caso4â‹…nh2o). the water content of the hydrate can be determined by gravimetric analysis. how many molecules of water are present for every formula unit of caso4 in an unknown calcium sulfate hydrate if a complete drying of a sample to anhydrous caso4 caused its mass to decrease from 8.609g to 6.807g?
Answers: 3
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Late at night some traffic signals change patterns and become ?
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SAT, 25.06.2019 17:30
In her article "why should i vote? " stephanie goggin crafts a well-organized and coherent argument. she states that every person of voting age who is registered should vote. she also argues that if you are not registered to vote, you should be. in conclusion, goggin's argument is laid out in a thoughtful and thorough way that is convincing to readers. which element is missing from this evaluation?
Answers: 1
SAT, 27.06.2019 11:00
Darwin studied two different types of tortoises on the galapagos islands. sort the characteristics based on which tortoise they describe.
Answers: 1
SAT, 28.06.2019 15:00
Layer r contains a well-known index fossil that is 100 million years old. based on this information and the principle of superposition, a. layers t and m are older than 100 million years, and layers x and g are younger than 100 million years. b. layers t, m, x, and g are all older than 100 million years. c. layers t and m are younger than 100 million years, and layers x and g are older than 100 million years.
Answers: 1
calcium sulfate is known to form hydrates (ionic compounds with water that have well-defined ratios...
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