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3 years ago

What observation did Rutherford make from his gold-foil experiment which

Chemistry

1 answer:

JulsSmile [24]3 years ago

8 0

Answer:

A piece of gold foil was hit with alpha particles, which have a positive charge. Most alpha particles went right through. This showed that the gold atoms were mostly empty space. Some particles had their paths bent at large angles. A few even bounced backward. The only way this would happen was if the atom had a small, heavy region of positive charge inside it.

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The image is a model of sulfuric acid that has a chemical formula of H2SO4. In 1-2 sentences, explain why creating models, like

zepelin [54]

Models of atoms and compounds help in understanding of concepts of reactions in chemistry.

<h3>What are models?</h3>

Models are objects used to provide a visual representation of certain things or structures.

Models are widely employed in chemistry because of their usefulness in strengthening understanding of concepts.

The importance of models in chemistry include:

they help students to be able to visualize the structures of atoms and compounds in a macroscopic scale
they provide an a clearer understand of how atoms combine to form products in reactions.

Therefore, models help in understanding of concepts of reactions in chemistry.

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3 years ago

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3 years ago

It was found that 35 mL of 0.015 M HCl neutralized 42.0 mL of NaOH solution. What was the molarity of the base solution? Group o

Nikitich [7]

Answer:

0.013M

Explanation:

m1v1/m2v2=n1/n2

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3 years ago

The diagram shows two molecules (A and B) with different

Anarel [89]

Answer: chromatography

Explanation:

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3 years ago

Write an equation for the neutralization of lemon juice with baking soda. Your equation should show a proton transfer to form ca

Jobisdone [24]

The equation of the neutralization reaction is:

HOC(CO₂H)(CH₂CO₂H)₂ + Na₂CO₃ ----> HOC(CO₂Na)(CH₂CO₂Na)₂ + H₂O

<h3>What is the acid in lemon juice?</h3>

The main acid in lemon juice is citric acid.

Citric acid is a tricarboxylic acid and will react with baking soda to form a salt and water.

The equation of the neutralization reaction is shown below:

HOC(CO₂H)(CH₂CO₂H)₂ + Na₂CO₃ ----> HOC(CO₂Na)(CH₂CO₂Na)₂ + H₂O

In conclusion, the neutralization of citric acid in lemon juice produces a salt and water.

Learn more about neutralization reaction at: brainly.com/question/15042730
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2 years ago