Answer:
B) Polonium and Arsenic
Explanation:
Metalloids are a small category of elements that are right between metals and non-metals, and have properties from those categories.
The most recognized are: Boron, Silicon, Germanium, Arsenic, Antimony, and Tellurium.
Some that are irregularly recognized are Polonium and Astatine.
The only option with the elements in either of the shown elements is B) Polonium and Arsenic.
<em>D</em> = 0.9570 g/mL
Mass of mixture = 88.219 g – 40.368 g = 47.851 g
<em>D</em> = mass/volume = 47.851 g/50.00 mL = 0.9570 g/mL
Answer:
pH = 2.5
Explanation:
Given data:
Concentration of HBr = 0.003 M
pH of solution = ?
Solution:
Formula:
pH = -log[H⁺]
by putting values,
pH = -log [ 0.003]
pH = 2.5
These ions are disjoint by the charge on the ion into four dissimilar tables and listed alphabetically within each table. Each polyatomic ion, has it called, chemical, formula, two dimensional drawing, and three dimensional representation are given.
The three dimensional buildings are drawn as CPK models. CPK structures represent the atoms as sphere, where the radius of the sphere is equal to the van der waals radius of the atom; these buildings give a measure up the volume of the polyatomic atom.
C. Ninhydrin is used to detect prints on a non-porous surface
