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For example, if this is session 0, boxes 0-2-5-9, 1-3-6-0, 5-7-0-4, and 8-0-3-7 are done because they all contain the number 0. If a reviewed card isn't successful, it moves back to Deck Current. If a reviewed card is successful and the last number of its box matches the current session number, then that card moves to the Retired Deck.
Lanthanum(III) iodate can be obtained by reacting a La 3+ salt with potassium iodate or ammonium iodate and precipitating it: [1] La 3+ + 3 IO 3 − → La(IO 3 ) 3 ↓ Properties
Course Hero acquired Symbolab, a mathematics problem solver, in October 2020, and acquired LitCharts, a literature guide resource, in June 2021. Terms of these acquisitions were not disclosed. [7] [8] In December 2021, the company received a $380 million Series C at a $3.6 billion valuation.
(Reuters) -Canadian Prime Minister Justin Trudeau on Saturday condemned violence and antisemitism at anti-NATO and pro-Palestinian protests in downtown Montreal on Friday night, where NATO ...
Since its launch in 2011, the CFPB has distributed more than $3.3 billion to consumers harmed by a range of illegal practices, such as student loan and mortgage relief scams and predatory lending.
On average, domestic rabbits can live to be between 8 and 12 years old, says Blue Cross, a British animal welfare nonprofit. The oldest recorded domestic rabbit lived to be 18 years and 10 months ...
Lanthanum oxide is used in optical materials; often the optical glasses are doped with La 2 O 3 to improve the glass' refractive index, chemical durability, and mechanical strength. [8] 3 B 2 O 3 + La 2 O 3 → 2 La(BO 2) 3 [clarification needed] The addition of the La 2 O 3 to the glass melt leads to a higher glass transition temperature from ...
Naturally occurring lanthanum (57 La) is composed of one stable (139 La) and one radioactive (138 La) isotope, with the stable isotope, 139 La, being the most abundant (99.91% natural abundance). There are 39 radioisotopes that have been characterized, with the most stable being 138 La, with a half-life of 1.03×10 11 years; 137 La, with a half ...