The answer choices:
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[B]: rusting iron ; AND:
[D]: rubbing a marker on paper;
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are BOTH examples of a chemical reaction.
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Note: Rusting iron is, more specifically, a "redox" (or, "oxidation/reduction") reaction.
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4. Atomic mass
Explanation:
The atomic number is the number of protons which, in a neutral atom, is equal to the number of electrons. The atomic mass is the number of protons + number of neutrons. Therefore the atomic mass is the greatest value.
There aren't any ions on here, but it will be the ion with a charge of 2+; since electrons have a negative charge, losing one will cause a 1+ charge, losing two will cause a 2+ charge and so on.
Hope this helps :)
Answer:
A. a spoonful of granulated sugar
Explanation:
hope that helps :)
Answer:A. Increases
Explanation:
Heating or an increase in temperature increases the kinetic energy of particles thereby increasing their motion and how they relate and react with one another.
Increase in the temperature of the solvent is directly proportional to the rate of dissolution. The rate of dissolution increases due to the increase in kinetic energy. This makes the solvent particles interact faster with the solute particles thereby increasing the dissolution rate.
