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A scientist has analyzed the chemicals that make of a sample of an unknown substance. Which chemicals would be the best indicator that the unknown substance is a plant?
cellulose and starch
What substance was responsible for the change in pH?
In order to change the pH, one of two ions must be formed. Producing hydronium ions will make the pH more acidic. On the other hand, producing more hydroxide ions will make the solution's pH more basic.
How do you make alkaline?
The concentration of dissociable OH- ions is a measure of the basicity of the substance. Greater the concentration of hydroxyl ions, greater is it alkaline.
What mon atomic ions do barium and selenium make?
An ionic compound, Barium selenide or BaSe is formed, with the ions Ba2+ and Se2-.
What kind of substance is formed when an acid is mixed with a base?
The combination of an acid and a base will result in the production of a salt and sometimes, water (requires a hydroxide (OH-) base and an acid that will make hydrogen (H+) ions). This is called a neutralization reaction.
What are the moving particles that make up electricity?
Free Delocalised Electrons or Ions in Liquids (or in a Molten Substance).
What happens when you add a neutral to an acid?
When you add a neutral substance to an acid, the pH of the solution will decrease because the neutral substance will react with the acid to form more hydronium ions, increasing the concentration of H+ ions in the solution. This will make the solution more acidic.
What type of chemicals make up nitrogenous base?
Adenine, cytosine, thymine, guanine, and uracil
Why does ionic substance can conduct electricity?
Ionic substances can conduct electricity because they contain charged particles called ions that are free to move. When an ionic substance dissolves in water or melts, the ions become mobile and are able to carry an electric charge, allowing the substance to conduct electricity.
What are the chemicals called when they are mixed?
a solution is two substance mixed together
A scientist has analyzed the chemicals that make of a sample of an unknown substance Which chemicals would be the best indicator that the unknown substance is a plant?
Chlorophyll, cellulose, and lignin are common chemicals found in plants that would be good indicators that the unknown substance is of plant origin. Chlorophyll is responsible for photosynthesis, cellulose is a structural component of plant cell walls, and lignin provides structural support to plants.
Is solution with four times as many hydronium ions hydroxide ions a acid base or a neutral?
A solution with four times as many hydronium ions as hydroxide ions is considered acidic. This is because the excess hydronium ions make the solution more acidic by increasing the concentration of H+ ions compared to OH- ions.
