Chemistry, 16.02.2021 23:40, nuggetslices
how much of a 400g sample of potassium-42 is left after 49.6 hours? The half-life of K-42 is 12.4 hours.
Answers: 2
Chemistry, 21.06.2019 13:30, gorbyalexis
One of the reactions in a blast furnace used to reduce iron is shown above. how many grams of fe2o3 are required to produce 15.5 g of fe if the reaction occurs in the presence of excess co? a.11.1 g b.22.1 g c.30.0 g d.44.2 g
Answers: 2
Chemistry, 22.06.2019 23:10, RealStephani
Match the formula for the following compound: magnesium sulfate heptahydratemgs·7h2omg2so4·7h2omg(s o4)2·7h2omgso4·7h2o
Answers: 1
Chemistry, 23.06.2019 03:00, winterblanco
In november 1987, a massive iceberg broke loose from the antartic ice mass and floated free in the ocean. the chunk of ice was estimated to be 98 mi long, 25 mi wide, and 750 ft thick. a typical backyard swimming pool contains about 24,000 gallons of water. how many of these pools could you fill from the water in this iceberg? (assume the iceberg is a rectangular solid of the above dimensions and consists of water only). express answer in scientific notation.
Answers: 3
Chemistry, 23.06.2019 14:00, lilyella1004
How does electronegativity changes as we move from left to right across a period
Answers: 2
how much of a 400g sample of potassium-42 is left after 49.6 hours? The half-life of K-42 is 12.4 ho...
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