Chemistry, 10.07.2019 06:30 andreanb8083
Asample taken from a layer of mica in a canyon has 2.10 grams of potassium-40. a test reveals it to be 2.6 billion years old. how much potassium-40 was in the sample originally if the half-life of potassium-40 is 1.3 billion years? a. 4.20 g b. 8.40 g c. 12.6 g d. 16.8 g e. 25.2 g
Answers: 2
Chemistry, 22.06.2019 22:00
In order to complete this lab. you will need to be familiar with some common chemistry terms. complete the chemical change puzzle and list the relevant terms and their meaning below a.rectant b.product c.supernate
Answers: 3
Chemistry, 22.06.2019 23:30
Why do oxygen have a strong attractive force for electrons
Answers: 2
Chemistry, 22.06.2019 23:50
Be sure to answer all parts. the following equilibrium constants were determined at 1123 k: c(s) + co2(g) ⇌ 2co(g) k'p = 1.30 × 1014 co(g) + cl2(g) ⇌ cocl2(g) k''p = 6.00 × 10−3 calculate the equilibrium constant at 1123 k for the reaction: c(s) + co2(g) + 2cl2(g) ⇌ 2cocl2(g) 4.68 × 10 9 (enter your answer in scientific notation.) write the equilibrium constant expression, kp:
Answers: 3
Chemistry, 23.06.2019 01:30
Which is an example of a highly unstable isotope that is often used in fission reactions?
Answers: 1
Asample taken from a layer of mica in a canyon has 2.10 grams of potassium-40. a test reveals it to...
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