1. Describe el elemento asignado: a. nombre, b. símbolo c. #atómico, d. masa atómica, e. dónde
se encuentra y cuáles son sus usos, f. p+, e-,n0, g. grupo y periodo, h. quién lo descubrió, año,
dónde, i. clasificación en la tabla periódica, j. estado en que se encuentra(sólido, líquido, gas),
k. punto de fusión I. punto de ebullición *
Answers: 2
Chemistry, 21.06.2019 14:10
The rock in a lead ore deposit contains 89 % pbs by mass. how many kilograms of the rock must be processed to obtain 1.5 kg of pb?
Answers: 1
Chemistry, 22.06.2019 15:00
20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?
Answers: 2
Chemistry, 22.06.2019 23:40
The kw for water at 0 °c is 0.12× 10–14 m2. calculate the ph of a neutral aqueous solution at 0 °c.
Answers: 2
Chemistry, 23.06.2019 02:50
What is the typical rotational frequency frot for a molecule like n2 at room temperature (25∘c)? assume that d for this molecule is 1å=10−10m. take the total mass of an n2 molecule to be mn2=4.65×10−26kg. you will need to account for rotations around two axes (not just one) to find the correct frequency. express frot numerically in hertz, to three significant figures.
Answers: 3
1. Describe el elemento asignado: a. nombre, b. símbolo c. #atómico, d. masa atómica, e. dónde
se e...
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