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Lostsunrise [7]
2 years ago
6

2. calcium reacts with oxygen to produce calcium oxide what is the :reactant' :products' and chemical equation" of this problem

Chemistry
1 answer:
earnstyle [38]2 years ago
3 0

Answer:

Calcium reacts with Oxygen to form Calcium Oxide

Explanation:

Reactant: Calcium reacts with Oxygen to form Calcium Oxide

Products: Calcium + Oxygen

Chemical equation: Ca + 02> CaO

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7 0
3 years ago
Which one of the following statements best describes a solution with a pH of 3?
zalisa [80]

Statement D is the correct option as the solution will have pH of 3. It has an H3O+ ion concentration of 1 × 10^{-3} mol/L and is acidic.

Explanation:

It is given in question that solution must have pH of 3. The value if being less than 7 shows that solution is acidic. The pH value of 3 indicates that given solution is highly acidic and has strong acid. Strong acid gets fully dissociated into H_{3}O^{+} ions.

pH of the solution is calculated as:

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the concentration or molarity of the hydronium ion is given as moles/litre

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6 0
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