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tangare [24]
2 years ago
8

What are 2 ways microscopes have changed and improved from the 16th century to present day?

Chemistry
1 answer:
Ivan2 years ago
5 0

Answer:

Glass and lens making have improved, and electronic features for microscopes have become available

Explanation:

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Calcium chloride forms an ionic solid. how are the particles held together and arranged in the solid
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Calcium chloride forms an ionic compound with a regularly arranged lattice of oppositely charged ions.

The Na+ and Cl- ions are held together by strong electrostatic forces. 

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Which is a balanced chemical equation?
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<h3>Answer:</h3>

B. C7H16 + 11O2 → 7CO2 + 8H2O

<h3>Explanation:</h3>
  • In a balanced chemical equation, the number of atoms of each element is equal on both sides of the equation.
  • In this case, the balanced chemical equation is;

   C7H16 + 11O2 → 7CO2 + 8H2O

Because, it has 7 carbon atoms, 16 hydrogen atoms and 22 oxygen atoms on each side of the equation.

  • When an equation is balanced it obeys the law of conservation of mass such that the mass of reactants will be equal to the mass of products.
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Write the chemical reactions for a weak acid and a strong acid.
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