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Alexeev081 [22]
3 years ago
7

Zinc nitrate can be produced by reacting an acid and a metal oxide.

Chemistry
1 answer:
strojnjashka [21]3 years ago
4 0

Answer:

The acid is Nitric Acid and the metal zinc

Explanation:

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Write a hypothesis statement about the relationship between the number of mushrooms and the concentration of heavy metals in the
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8 0
2 years ago
Summarize: Complete the following statements:
egoroff_w [7]

Answer:

Explanation:

Taking into account the definition of Avogadro's Number, the correct answers are:

1 mole of any element contains 6.023×10²³ atoms

1 mole of any compound contains 6.023×10²³ molecules

You have to know that Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole.

Avogadro's number represents a quantity without an associated physical dimension, so it is considered a pure number that allows describing a physical characteristic without an explicit dimension or unit of expression.

Avogadro's number applies to any substance, because the number of elementary units in a mole of a substance is, by definition, a  constant that does not depend on the material or the type of particle considered.

So, in this case, the correct answers are:

1 mole of any element contains 6.023×10²³ atoms

1 mole of any compound contains 6.023×10²³ molecules

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4 0
2 years ago
Bombardment of cobalt-59 with a neutron produces a manganese-56 atom and another particle. What is this particle?A. an alpha par
Aleksandr-060686 [28]

Answer:A

Explanation:

A nuclear reaction is balanced by ensuring that the Masses and charges of te reactants and products are exactly balanced on the left and right hand side of the reaction equation. If there are 60 mass units on the LHS and manganese has only 56 mass units then four mass units are left. If there is no charge on a neutron and there is a charge of 27 on the cobalt, then two charges are left. Four mass units and a charge of +2 corresponds to a helium which is actually an alpha particle.

4 0
3 years ago
Identify all the physical properties of a base.
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Answer:

  • Bases are ionic compounds that produce negative hydrogen ions (OH⁻) when dissolved in water.
  • An example of a base is Sodium Hydroxide (NaOH).
  • Bases have a bitter taste.
  • Bases feel slippery.
  • Bases conduct electricity when dissolved in water.
  • Bases change litmus paper from red to blue in colour.
  • They react with acids to form a salt and water, this process is called neutralisation.
  • The pH of bases ranges from 8-14.
  • Turns phenolphthalein pink.

Hope this helps!

7 0
3 years ago
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