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The golden ripe ear of soybeans can be harvested.
The golden ripe ear of soybeans can be harvested.

A classical acoustic guitar near a green country fence and a blooming jasmine bush.
A classical acoustic guitar near a green country fence and a blooming jasmine bush.

Turquoise salt nickel sulfate in the form of crystal hydrate in a test tube.
Turquoise salt nickel sulfate in the form of crystal hydrate in a test tube.

Glass jars with different colored inorganic reagents, with chemical formulas.
Glass jars with different colored inorganic reagents, with chemical formulas.

Chemical beaker with brown insoluble manganese sulfide at the bottom.
Chemical beaker with brown insoluble manganese sulfide at the bottom.

A paper filter through which the black inorganic substance copper sulfide is slowly filtered.
A paper filter through which the black inorganic substance copper sulfide is slowly filtered.

Structures of inorganic salts in test tubes.
Structures of inorganic salts in test tubes.

Red rural cat rubs against a green wooden fence.
Red rural cat rubs against a green wooden fence.

Frozen construction plastic sheeting under a layer of snow and hanging icicles melting in the sunlight.
Frozen construction plastic sheeting under a layer of snow and hanging icicles melting in the sunlight.

A set of colored salts - reagents: blue copper sulfate, brown cobalt sulfate, green nickel chloride, orange potassium dichromate, black potassium permanganate.
A set of colored salts - reagents: blue copper sulfate, brown cobalt sulfate, green nickel chloride, orange potassium dichromate, black potassium permanganate.

The ammonia complex of copper sulfate, tetraammine copper sulfate in the form of a blue precipitate in a beaker, with the chemical formula.
The ammonia complex of copper sulfate, tetraammine copper sulfate in the form of a blue precipitate in a beaker, with the chemical formula.

The process of dissolving a purple dye in water in a beaker.
The process of dissolving a purple dye in water in a beaker.

Nitrate salts of such metals: calcium, magnesium, barium, potassium, sodium, on a blue background.
Nitrate salts of such metals: calcium, magnesium, barium, potassium, sodium, on a blue background.

A large amount of foam is released from the graduated cylinder during the violent chemical reaction of hydrogen peroxide decomposition.
A large amount of foam is released from the graduated cylinder during the violent chemical reaction of hydrogen peroxide decomposition.

A large number of aphids on the petals of ripe cabbage, aphids are harmful to the crop.
A large number of aphids on the petals of ripe cabbage, aphids are harmful to the crop.

Loose white ammonium nitrate in the form of fine granules, in a conical flask.
Loose white ammonium nitrate in the form of fine granules, in a conical flask.

A complex inorganic compound of cobalt, a small dark blue sediment of tetraammine cobalt sulfate in a beaker.
A complex inorganic compound of cobalt, a small dark blue sediment of tetraammine cobalt sulfate in a beaker.

Reagents for the preparation of ammonia complexes compounds: blue copper sulfate, red cobalt sulfate, green nickel sulfate, aqueous solutions in beakers.
Reagents for the preparation of ammonia complexes compounds: blue copper sulfate, red cobalt sulfate, green nickel sulfate, aqueous solutions in beakers.

Small particles of iodine slowly settle in the solution at the bottom of the test tube.
Small particles of iodine slowly settle in the solution at the bottom of the test tube.

A ripe soybean ear is ready for harvesting.
A ripe soybean ear is ready for harvesting.

Yellow autumn oak leaves float rapidly downstream on the surface of a lake with a visible bottom.
Yellow autumn oak leaves float rapidly downstream on the surface of a lake with a visible bottom.

Cubic Sodium Chloride Crystals
Cubic Sodium Chloride Crystals

Full glass jar of sodium nitrate crystals, effective nitrogen fertilizer.
Full glass jar of sodium nitrate crystals, effective nitrogen fertilizer.

One purple rose with drops of summer rain on the petals.
One purple rose with drops of summer rain on the petals.

A beautiful purple rose with summer raindrops on the petals.
A beautiful purple rose with summer raindrops on the petals.

A beautiful pink rose with water drops on the petals after a summer rain.
A beautiful pink rose with water drops on the petals after a summer rain.

A large pink rose on a rainy summer day.
A large pink rose on a rainy summer day.

Two large pink roses with raindrops on the petals.
Two large pink roses with raindrops on the petals.

One purple rose with water drops on the petals after a summer rain.
One purple rose with water drops on the petals after a summer rain.

When the Congo red indicator dye interacts with oxalic acid, small insoluble blue particles forming.
When the Congo red indicator dye interacts with oxalic acid, small insoluble blue particles forming.

Wooden piles for a small fishing bridge stick out of the water on the lake.
Wooden piles for a small fishing bridge stick out of the water on the lake.

On a forest lake, wooden piles for a small fishing bridge stick out of the water.
On a forest lake, wooden piles for a small fishing bridge stick out of the water.