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Elis [28]
3 years ago
8

Which of the following methods can be used to separate salt and iron? Distillation Evaporation Filtration Magnetism

Chemistry
2 answers:
Maru [420]3 years ago
3 0
Distillation seems to be the correct choice

Alecsey [184]3 years ago
3 0
Since iron is magnetic your best choice would be to use magnetism.
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If a weaker solution of sodium bicarbonate was used in beaker B, would that solution require more or less acetic acid to neutral
Anarel [89]

Answer is: less acetic acid to neutralize it.

Balanced chemical reaction of sodium bicarbonate solution and acetic acid: NaHCO₃(aq) + CH₃COOH(aq) → CH₃COONa(aq) + H₂O(l) + CO₂(g).

According to chemical reaction: n(NaHCO₃) : n(CH₃COOH) = 1 : 1.

Stronger solution of sodium bicarbonate (NaHCO₃), more acetic acid (CH₃COOH) is neeed for neutralization.

7 0
4 years ago
A metal oxide reacts chemically with water to form a base in the reaction shown below. If the temperature of the metal oxide and
Alla [95]

increase the rate of chemical change.

Explanation:

The reaction of the metal oxide with water to form a base in the presence of a spike in temperature will lead to an increase in the rate of chemical change.

Temperature change has considerable effect on reaction rates.

  • Temperature is directly proportional to the average kinetic energy of reacting particles.
  • Reaction rates varies directly with a spike in temperature.
  • It has been known that for every 10°C rise in temperature, above the room temperature, reaction rates become double or tripled.
  • Temperature increases the kinetic energy of each of the reacting particles.
  • Many of the reacting particles also acquires an energy greater than or equal to the activation energy of the reaction.
  • The frequency of ordinary collisions and effective collisions per unit time increases.

Learn more;

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6 0
3 years ago
How many neutrons does the most common isotope of hydrogen have?
pashok25 [27]
The most common isotope of hydrogen is H¹  and this isotope has 0 neutrons
3 0
3 years ago
An atom has an average atomic mass of about 63.5 amu. What is the chemical symbol for the atom? Consult the periodic table.
bearhunter [10]
An atom has an average atomic mass of about 63.5 amu. 
<span>
1 amu is equal to 1 gram per mole

so 63.5 amu is just equal to 63.5 grams per mole or 63.5 g/mol
the answer is Cu or copper.
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4 0
4 years ago
Read 2 more answers
What happens to a person's weight on smaller and larger planets?
wlad13 [49]

Answer:

The amount of gravity they have depends on their size. So, a small planet has less and a larger planet has more gravity. Just like the planets, a person with more mass has more gravity and therefore weighs more.

5 0
3 years ago
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