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Ihor Matsiievskyi
Ihormatsiieskiy
Kyiv City, Ukraine

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Blue precipitate of copper carbonate precipitated at the bottom of a beaker.

Metal oxides in three glass jars with chemical formulas.

Chemical reagents in test tubes: nickel chloride, zinc sulfate, manganese sulfate, copper sulfate, iron oxide of black color.

Drawing structural chemical formulas. Structural formula of the amino acid.

Crystals of salts of different structure and colors in test tubes.

Synthetic medicines are products of organic chemistry.

Slow process of precipitation of white insoluble zinc hydroxide particles in water, at the bottom of a beaker.

Colored aqueous solutions of inorganic salts in glass jars with formulas.

Tubes with aqueous of colored dyes.solutions

Colored aqueous solutions of salts in small glass jars with formulas.

Catalytic decomposition of hydrogen peroxide.

Harmful nitrates make vegetables and fruits much larger, but not more useful.

Weighing of white powder from capsules on a digital scale.

Bus parking.

Weighing of the mineral of auripigment is also arsenic sulphide.

Various inorganic mineral chemicals in glass jars.

The formation of red liquid bromine in a beaker with a volume of 250 milliliters.

Colored inorganic salt reagents in test tubes with formulas.

Exothermic chemical reaction of dissolution of metallic magnesium in dilute sulfuric acid, in a beaker.

Transparent sodium chloride crystals of cubic structure in sunlight.

Inorganic chemistry. Structure of colored inorganic salts in test tubes with chemical formulas.

Metal oxides in three glass jars with chemical formulas.

Solutions of food dyes in a beakers.

Glass jars with different inorganic chemicals with stickers and formulas.

The chemical reaction of neutralization is the interaction of formic acid with soda.

The chemical reaction of the formation of a black insoluble compound of iron sulfide in a beaker.

Chemical reaction to form a large amount of insoluble brown manganese sulfide compound in a beaker.

Visual determination pH of hydrochloric acid using malachite green indicator dye.

Color change of the malachite green indicator dye.

The process of coloring oxalic acid in red with the indicator dye methyl orange.

Obtaining a mixture of insoluble copper, zinc and manganese silicates in a beaker.

The color change of the indigo carmine indicator dye due to the change of pH of the solution to a strongly alkaline one.

The color change reaction did not take place until the end.

Color change of the Congo red indicator dye.

The formation of a large amount of black, insoluble compound of iron sulfide in a beaker.

The process of dissolving magnesium metal in dilute sulfuric acid.

Discoloration of the phenolphthalein indicator dye due to a change in pH of the reaction mixture to an acidic one.

Chemical process of neutralization of oxalic acid with soda solution in a conical flask.

The process of neutralization of an acidic solution of magnesium sulfate with sodium bicarbonate.

The formation of small blue particles when the Congo red indicator dye added to a solution of oxalic acid.

Chemical reaction of dissolution of pieces of magnesium in dilute sulfuric acid. As a result, hydrogen gas releases.

Bright process of neutralization of formic acid with soda. The color of the reaction mixture changes.

Phenolphthalein indicator dye in soda solution.

Adding Congo red indicator dye to a conical flask with water.

Obtaining a beautiful insoluble compound of copper silicate mineral origin.

Obtaining a beautiful purple inorganic compound of cobalt silicate in a beaker.

Addition of the indicator dye phenolphthalein to a solution of a strong base of sodium hydroxide.

Inorganic dark blue pigment is formed in a beaker.

Slow process of discoloration of potassium permanganate solution.

A beautiful process of precipitation of large insoluble particles of manganese sulfide in a beaker.

Chemical analytical reaction for the detection of starch using iodine.

Coloring of an acidic solution with the indicator dye methyl orange.

Formation of a larger amount of blue insoluble copper silicate compound in a beaker.

The chemical process of releasing a large volume of carbon dioxide as a result of the neutralization reaction.

Color change of the Congo red indicator dye upon addition of acid.

Coloration of water in green-blue color with malachite green indicator dye.

Chemical reaction of the formation of an insoluble white compound of calcium carbonate.

Chemical reaction of discoloration of an acidified solution of potassium permanganate.

A beautiful chemical reaction of the formation of a black precipitate of copper sulfide in a beaker.

The formation of a white precipitate of calcium carbonate. During the reaction, the indicator dye phenolphthalein decoloreses.

A rapid chemical reaction of the formation of a black precipitate of iron sulfide in a beaker.

Obtaining an inorganic dark blue pigment in a beaker.

A bright chemical reaction of coloring an alkaline solution of sodium carbonate in purple with the indicator dye phenolphthalein.

Purple coloration of the phenolphthalein indicator dye in an alkaline solution of sodium silicate.

Indicator dye methyl orange in an acidic environment.

The formation of a beautiful insoluble substance of inorganic origin - purple cobalt silicate.

Obtaining a larger amount of a mixture of insoluble copper zinc and manganese silicates of turquoise color.

The Congo red indicator dye changes its color due to a change in the pH reaction.

Acid neutralization reaction with soda powder. The color of the Congo red indicator dye changes.

Reaction of neutralization of formic acid with soda solution. Malachite green indicator dye changes color.

Formation of a brown insoluble inorganic compound of manganese sulfide in a beaker.

The process of dissolving the malachite green indicator dye in water.

Visual determination of the pH of an oxalic acid solution using the methyl orange indicator dye.

Violent chemical reaction of neutralization of hydrochloric acid with the formation of a large amount of carbon dioxide.

Coloring the soda solution in a beautiful green color with the malachite green indicator dye.

Chemical reaction of neutralization of oxalic acid with soda.

The formation of large amount insoluble compound - cobalt silicate of a beautiful purple color.

Synthesis of an inorganic dark blue pigment in a beaker.

Phenolphthalein indicator dye.

Preparation of ammonia complex compounds of various metals: cobalt, nickel and copper.

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