An element x has two naturally occurring isotopes: x-35 (abundance = 75.77%, mass = 34.968852 amu) and x-37 (abundance = 24.23%, mass = 36.965903 amu).
calculate the weighted atomic mass of x. also, identify the unknown element.
a) 39.948 amu argon
b) 35.453 amu chlorine
c) 79.904 amu bromine
d) 32.066 amu sulfur
Answers: 2
Chemistry, 22.06.2019 09:10
How have the greenhouse gasses increased from the year 2000 to 2018
Answers: 2
Chemistry, 22.06.2019 18:00
To apply in a gold the individual gold atoms are united to each other by means of a metallic bond. how would you use the gold block to determine the atomic radius of a gold atom?
Answers: 3
Chemistry, 22.06.2019 20:00
What is the molarity of the solution produced when 145 g of nacl is dissolved in sufficient water to prepare 2.75 l of solution?
Answers: 1
Chemistry, 22.06.2019 21:50
Answer the questions about this reaction: nai(aq) + cl2(g) → nacl(aq) + i2(g) write the oxidation and reduction half-reactions: oxidation half-reaction: reduction half-reaction: based on the table of relative strengths of oxidizing and reducing agents (b-18), would these reactants form these products? write the balanced equation: answer options: a. 0/na -> +1/na+1e- b. nai(aq) + cl2(g) → nacl(aq) + i2(g) c. +1/na+1e- -> 0 /na d. -1/2i -> 0/i2+2e- e. no f. 4nai(aq) + cl2(g) → 4nacl(aq) + i2(g) g. 2nai(aq) + cl2(g) → 2nacl(aq) + i2(g) h. 4nai(aq) + 2cl2(g) → 4nacl(aq) + 2i2(g) i. nai(aq) + cl2(g) → nacl(aq) + i2(g) j. 0/cl2+2e -> -1/2cl- k. yes
Answers: 1
An element x has two naturally occurring isotopes: x-35 (abundance = 75.77%, mass = 34.968852 amu)...
Mathematics, 08.04.2020 20:26
Physics, 08.04.2020 20:26
Mathematics, 08.04.2020 20:26
Mathematics, 08.04.2020 20:27