Chemistry, 25.09.2021 14:00 Sushmitarai9416
Một hợp chất có phân tử gồm 1 nguyên tử nguyên tố X liên kết với 2 nguyên tử O và nặng hơn phân tử hiđro 23 lần. Tính nguyên tử khối của X, cho biết tên và kí hiệu hóa học của nguyên tố
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Chemistry, 23.06.2019 03:00
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 03:30
Ahelium balloon contains 16.9 l of helium at stp. how many atoms of helium are in the balloon
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Chemistry, 23.06.2019 05:40
The independent variable in an experiment will be the variable that you o a) change ob) hold constant ng c) observe for changes
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Chemistry, 23.06.2019 13:20
What volume of 24% trichloroacetic acid (tca) is needed to prepare eight 3 ounce bottles of 10% tca solution?
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Một hợp chất có phân tử gồm 1 nguyên tử nguyên tố X liên kết với 2 nguyên tử O và nặng hơn phân tử h...
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