Answer:
Your question is half unfinished, regarding the chromium III oxide the correct option that expresses the inorganic formula of said compound is "A"
Explanation:
In the reaction an initial salt reacts giving as product water vapor, nitrogen gas and an oxide that is chromium oxide.
Chromium oxide is an oxide that adopts the structure of corundum, compact hexagonal. It consists of an anion oxide matrix with 2/3 of the octahedral holes occupied by chromium. Like corundum, Cr2O3 is a tough, brittle material.
It is used as a pigment, green in color.
Answer:
[OH⁻] = 0.016
Explanation:
Given data:
pH = 12.2
Hydroxide ion concentration = ?
Solution:
It is known that,
pH + pOH = 14
12.2 + pOH = 14
pOH = 14 - 12.2
pOH = 1.8
pOH = -log [OH⁻]
1.8 = -log [OH⁻]
10⁻¹°⁸ = [OH⁻]
[OH⁻] = 0.016
Hi lovely,
I'd say the answer you're looking for would be A) Such small amounts supply essential trace elements
Because additives are in small amounts the FDA approves it, therefore not many people know what's in their food.
Answer: 1- charge
We see that hydroxide has a 1- charge, which means the ion has one more electron than there are protons in the nuclei of a hydrogen atom plus an oxygen atom.
Explanation:
Hello!
SOLID- atoms are packed tightly together with little movement. Has a definite shape and volume.
LIQUID- atoms are packed loosely together with some movement. Has a definite volume but NO definite shape.
GAS- atoms are spread out with lots of movement. Has NO definite shape or volume.
ICE- when a liquid turns into a solid (freezing).
WATER- when a solid turns into a liquid (heat is added)
WATER VAPOR- when a liquid turns into a gas (boiling)
Hope this helped!
