2 years ago

Which of the following is most helpful in determining a

Chemistry

1 answer:

Vesnalui [34]2 years ago

4 0

I got D for an answer

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How many molecules in a mole?

Dennis_Churaev [7]

Answer:

One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro's number or Avogadro's constant.

Explanation:

hope this helped!

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3 years ago

When one element replaces another element in a compound the reaction is a _____ reaction

Taya2010 [7]

Single-displacement

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3 years ago

The infections that people get while they are in hospitals are commonly resistant to multiple drugs. What is a reason for the in

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3 years ago

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Predict the products of the reaction below. That is, complete the right hand side of the chemical equation. Be sure your equatio

pickupchik [31]

Answer:

2 HClO₃ + Ca(OH)₂ ---> Ca(ClO₃)₂ + 2 H₂O

Explanation:

This is a double-displacement reaction. In these reactions, the cation of one molecule swaps with the cation of another.

In this case, the hydrogen cation (H⁺) from HClO₃ swaps with the calcium cation (Ca²⁺) of Ca(OH)₂. When writing the products, keep the charges of the ions in mind. The products must be neutral, so some will need to have more than 1 cation/anion.

The unbalanced equation:

HClO₃ + Ca(OH)₂ ---> Ca(ClO₃)₂ + H₂O

Reactants: 3 hydrogen, 1 chlorine, 5 oxygen, 1 calcium

Products: 2 hydrogen, 2 chlorine, 7 oxygen, 1 calcium

The balanced equation:

2 HClO₃ + Ca(OH)₂ ---> Ca(ClO₃)₂ + 2 H₂O

Reactants: 4 hydrogen, 2 chlorine, 8 oxygen, 1 calcium

Products: 4 hydrogen, 2 chlorine, 8 oxygen, 1 calcium

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2 years ago

2. Which statement is false about the atoms of a given element?

Digiron [165]

B. They are the same as the atoms of all other elements

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3 years ago