Answer:
A solution at pH 6 contains<u><em> 100 times more H+</em></u> than the same amount of solution at pH 8.
Explanation:
pH of a substance determines the hydrogen ion concentration of a solution. Acidic solution tend to have a higher concentration of H+ ions as compared to that of water. They have a concentration greater than 1 × 10^{-7} M. Basic solutions have lesser concentration of H+ ions as compared to that of water. They have a concentration lesser than 1 × 10^{-7} M. A solution from pH range 1 to 6 will be acidic. A solution from pH rage 8-10 will be basic.
Answer:
Organic
Explanation:
Limestone that is formed from shells of clams and other organisms
Both fluorescence and phosphorescence are based on the ability of a substance to absorb light and emit light of a longer wavelength and therefore lower energy. The main difference is the time in which it takes to do so. ... So if it disappears immediately, it's fluorescence. If it lingers, it's phosphorescence.
Answer: When studying a rock sample, geologists observe the rock's mineral composition, color, and texture.
Explanation:
Answer:
NH₂⁻<NH₃<NH₄⁺
Explanation:
Hello.
In this case, regarding the molecules:
NH₄⁺, NH₃ and NH₂⁻.
Which are ammonium, ammonia and amide, in order to rank them in terms of how big the angles are, we need their molecular geometry as shown on the attached picture. As you can see, the geometry of ammonium is tetrahedral with an angle between H bonds of 109.5°, the geometry of ammonia is trigonal pyramidal with an angle between H bonds of about 107° and the geometry of amide is bent with angles of 104.5°.
Therefore the order from smallest to biggest is: NH₂⁻<NH₃<NH₄⁺.
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