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What happens upon the addition of NaOH solution (OH- ions) to a pink solution of cobalt chloride? Include equation(s) in your answer.

A blue precipitate is formed when both a few drops, or excess, of NaOH is added to a solution of cobalt chloride; this is an example of an acid-base chemical reaction.The relevant equation is: [Co(H 2 O) 6 ]...
CW
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How do I know which ending to use after the preposition «в»?

The preposition «в» has two meanings: in/on or to (as in movement, going to a place). When it means in or on, the noun which follows must be in the prepositional case, ending in «е». For example «мальчик в п...
EB
Answered by Eleanor B. • Russian tutor
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Before a drug is sold and released to the public, what measures must scientists take to ensure the safety of a drug and why are these steps taken?

Phase I- The drug must be tested on animals and tissue culturesPhase II - The drug is tested on healthy volunteers in small dosesPhases III- The drug is tested on sick patients in small dosesSmall doses are ...
SG
Answered by Saranya G. • Biology tutor
3084 Views

How to find the equation of a line connecting two given coordinate points.

The equation of the line will be in the set form for a straight line, this being y = mx + cHence substitute the x and y values of one of the points into this equation.Repeat for the other coordinate.Hence so...
KS
Answered by Kazuaki S. • Maths tutor
3790 Views

How does oxidative phosphorylation produce ATP?

Oxidative phosphorylation requires the electron carrier system; comprised of four protein complexes (complexes I - IV) as well as the enzyme ATPase. These are intrinsic enzymes that line the inner mitochondr...
JB
Answered by Jack B. • Biology tutor
5331 Views