What can be deduced from the fact that a substance has a pH of 7?
A) The number of H+ ions in the substance is equal to the number of OH-ions.
B) The substance reacts with sodium hydroxide to produce a salt and water
C) It is colourless solution that does not conduct electricity.
D) Its boiling point will be 100°C or lower.
Answers: 1
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The image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table? atom p has an estimated zeff of 7 and is therefore to the left of atom q, which has a zeff of 6. atom p has an estimated zeff of 7 and is therefore to the right of atom q, which has a zeff of 6. atom p has an estimated zeff of 5 and is therefore below atom q, which has a zeff of 4. atom p has an estimated zeff of 5 and is therefore above atom q, which has a zeff of 4.
Answers: 3
What can be deduced from the fact that a substance has a pH of 7?
A) The number of H+ ions in the s...
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