Answer:
The given statement is false.
Explanation:
Acid as are defined as those substance which gives hydrogen ions in their aqueous solutions.
Base as are defined as those substance which gives hydroxide ions in their aqueous solutions.
The given statement is false.The correct statement is :
Bases increase the concentration of hydroxide ions by donating hydroxide ions to water molecules.
Answer:
a
They form an ionic bond by exchanging two electrons.
Explanation:
Magnesium loses two electrons and oxygen gains these electrons so ionic bond is formed
Answer:
8.31 × 10⁻²² kJ
Explanation:
Step 1: Given data
Energy required to remove one mole of electrons from the atoms at the surface of a solid metal: 500 kJ/mol e⁻
Step 2: Calculate how much energy does it take to remove a single electron from an atom at the surface of this solid metal
We will use Avogadro's number: there are 6.02 × 10²³ electrons in 1 mole of electrons.
500 kJ/mol e⁻ × 1 mol e⁻/6.02 × 10²³ e⁻ = 8.31 × 10⁻²² kJ/e⁻
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Answer:
45.069 mL
Explanation:
mass/density=volume.
If we fill in the numbers provided, we would have:
35.6/0.7899=45.069
Don't forget to add your measurements!
45.069 mL
