subject
Chemistry, 09.09.2021 17:20 ethanyayger

Part c Look at the two question marks between zinc (Zn) and arsenic (As). At the time, no elements were known with atomic weights between 65.2 and 75. But Mendeleev predicted that two elements must exist with atomic weights in this range. What led Mendeleev to predict that two undiscovered elements existed in that range?

part d
The two elements predicted by Mendeleev were discovered later. Locate the elements gallium (Ga) and germanium (Ge) in the periodic table. Click each element to reveal its properties. Explain how these elements fit Mendeleev’s predictions.

ansver
Answers: 2

Other questions on the subject: Chemistry

image
Chemistry, 22.06.2019 03:30, alicea70
Each pair of clay balls represents to planetesimals if each plane test molluscum pound of the same material and is separated by the same distance which pair experiences the greatest gravitational attraction
Answers: 2
image
Chemistry, 22.06.2019 20:00, 20calzoy
There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .
Answers: 3
image
Chemistry, 22.06.2019 22:30, Jermlew
What methods could you use to solubilize calcium carbonate
Answers: 1
image
Chemistry, 22.06.2019 23:30, jade468
Substance a is a nonpolar liquid and has only dispersion forces among its constituent particles. substance b is also a nonpolar liquid and has about the same magnitude of dispersion forces among its constituent particles. when substance a and b are combined, they spontaneously mix.
Answers: 1
You know the right answer?
Part c Look at the two question marks between zinc (Zn) and arsenic (As). At the time, no elements...

Questions in other subjects:

Konu
Chemistry, 27.01.2021 19:10
Konu
History, 27.01.2021 19:10
Konu
Mathematics, 27.01.2021 19:10
Konu
Mathematics, 27.01.2021 19:10