Mr. Everett's Demonstrations - from www.mrtever...
Loading...
18
subscribers
47,680
video views
Uploaded videos
1-10 of 13-
hydrogen peroxide [manganese(IV) oxide].wmv
mrteverett
581 views
Manganese(IV) oxide is utilized in the catalyzed decomposition of hydrogen peroxide. The bubbling in the test tube indicates the rapid evolution of oxygen gas. The black ...
-
lead(II) nitrate + sodium iodide
mrteverett
808 views
When solutions of lead (II) nitrate and sodium iodide are mixed, aqueous sodium nitrate is produced along with the precipitate lead(II) iodide.
-
lead(II) nitrate + sodium hydroxide
mrteverett
1,301 views
The dropwise addition of aqueous sodium hydroxide to a lead(II) nitrate solution produces the white precipitate lead(II) hydroxide. The swirling stir bar makes it easier t...
-
Chromium(III) ions undergo several reactions to make chromate and dichromate ions
mrteverett
1,207 views
A solution of chromium(III) ions is reacted with sodium hydroxide. Initially, a precipitate is formed, but excess amounts of sodium hydroxide yield green hexahydroxochroma...
-
dimethylglyoxime detects the presence of Ni+2
mrteverett
783 views
Dimethylglyoxime dissolved in ethanol makes a solution that can be used to determine the presence of the nickel (II) cation. In this video, a green solution of nickel (II)...
-
Zinc reacts vigorously with sulfuric acid
mrteverett
3,314 views
Concentrated sulfuric acid reacts vigorously with zinc. The gas evolved is hydrogen from this highly exothermic reaction.
-
Magnesium reacts with hot water
mrteverett
20,320 views
Magnesium reacts with hot water to produce magnesium hydroxide and hydrogen gas. Phenolphthalein changes the solution pink because the magnesium hydroxide product is basic.
-
calcium + water phenolphthalein
mrteverett
5,376 views
Calcium metal is added to a beaker of water. Phenolphthalein indicator immediately changes the solution pink because one of the products, calcium hydroxide, is basic. The...
-
Producing bromine by reacting sodium bromide with sulfuric acid
mrteverett
3,641 views
Concentrated sulfuric acid is added to a beaker containing white crystals of sodium bromide. The essential product is bromine, some of which turns to the vapor phase immed...
-
Magnesium reacts with carbon dioxide
mrteverett
1,233 views
Copper (II) carbonate is heated in a beaker so an enivornment of carbon dioxide is created as it decomposes. A lit piece of magnesium is placed inside and reacts vigorousl...
Advertisement
Play all(13)