Podcast
Questions and Answers
Which of the following are NOT properties of most metals?
Which of the following are NOT properties of most metals?
- high melting point
- strong
- hard
- magnetic (correct)
- brittle (correct)
Which of these is NOT a characteristic of metals?
Which of these is NOT a characteristic of metals?
- sonorous
- ductile
- lustrous
- malleable
- brittle (correct)
Copper is magnetic.
Copper is magnetic.
False (B)
What are the two substances that react in a chemical reaction called?
What are the two substances that react in a chemical reaction called?
What are the substances that are produced in a chemical reaction called?
What are the substances that are produced in a chemical reaction called?
What is the general equation for a neutralization reaction?
What is the general equation for a neutralization reaction?
The ______ scale measures the acidity or alkalinity of a substance.
The ______ scale measures the acidity or alkalinity of a substance.
Which gas is released when acids react with metal carbonates?
Which gas is released when acids react with metal carbonates?
All metals react with acids to produce hydrogen gas.
All metals react with acids to produce hydrogen gas.
Which of the following is NOT an example of an acid?
Which of the following is NOT an example of an acid?
Which of the following is an example of an alkali?
Which of the following is an example of an alkali?
What is the name given to rain that is more acidic than normal?
What is the name given to rain that is more acidic than normal?
Acid rain only affects buildings and statues.
Acid rain only affects buildings and statues.
What are the two main acidic gases that contribute to acid rain?
What are the two main acidic gases that contribute to acid rain?
Which of these substances has the lowest pH?
Which of these substances has the lowest pH?
Acid rain is dangerous because it acts quickly and causes rapid damage.
Acid rain is dangerous because it acts quickly and causes rapid damage.
How does acid rain affect buildings?
How does acid rain affect buildings?
Acid rain can reduce the growth of plants, including food crops.
Acid rain can reduce the growth of plants, including food crops.
What are metal carbonates?
What are metal carbonates?
Metal carbonates can neutralize acids.
Metal carbonates can neutralize acids.
What are the two main components of carbonates?
What are the two main components of carbonates?
Flashcards
Metals
Metals
Elements that are typically shiny, malleable, ductile, good conductors of heat and electricity, and tend to lose electrons in chemical reactions.
Nonmetals
Nonmetals
Elements that are typically dull, brittle, poor conductors of heat and electricity, and tend to gain electrons in chemical reactions.
Chemical Equation
Chemical Equation
A representation of a chemical reaction using symbols and formulas, showing the reactants and products involved.
Balancing Chemical Equations
Balancing Chemical Equations
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Acid Rain
Acid Rain
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Neutralisation
Neutralisation
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Salts
Salts
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Carbonates
Carbonates
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Malleability
Malleability
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Ductility
Ductility
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Conductivity
Conductivity
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Electron Loss
Electron Loss
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Electron Gain
Electron Gain
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Exothermic Reaction
Exothermic Reaction
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Endothermic Reaction
Endothermic Reaction
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Reactants
Reactants
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Products
Products
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Coefficient
Coefficient
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Atom
Atom
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Study Notes
Metals and Non-Metals
- Metals have characteristics like luster (shininess), flexibility, ductility (ability to be drawn into wires), malleability (ability to be hammered into sheets), sonorousness (producing a ringing sound when hit), and conductivity (ability to conduct electricity and heat).
- Some metals are magnetic (e.g., iron, cobalt, nickel) while others are not (e.g., copper)
- Chemical reactions produce new substances, represented by word equations or symbol equations.
- Word equations simply show the reactants and products.
- Symbol equations indicate the chemical formulas for each substance involved in the reaction.
- To balance symbol equations, the number of atoms for each element must be equal on both sides of the arrow to reflect the law of conservation of mass.
- Acids react with metals to produce hydrogen gas; while reacting with metal carbonates, they release carbon dioxide.
Acid Rain
- Rain naturally has a slightly acidic pH (around 5.0-5.5) due to dissolved carbon dioxide forming carbonic acid.
- Acid rain occurs when pollutants (like sulfur dioxide and nitrogen oxides) from burning fossil fuels mix with water vapor in the atmosphere, forming stronger acids (e.g., sulfuric and nitric acid). This lowers the pH of the rain.
- Acid rain harms the environment by dissolving rocks and buildings (primarily limestone), making waterways acidic, poisoning plants and fish, and damaging forests and crops.
Neutralization Reactions
- An acid reacts with an alkali to produce salt and water in a neutralization reaction.
- The general equation for this reaction is: Acid + Alkali → Salt + Water
- Examples of acids include hydrochloric acid, sulfuric acid, and nitric acid.
- Examples of alkalis include potassium hydroxide, magnesium hydroxide, and barium hydroxide.
- Metal carbonates are also substances that can neutralize acids.
Properties of Metals and Non-Metals
- Metals are generally hard, shiny, and good conductors of heat and electricity.
- Non-metals may be brittle, dull, poor conductors of heat and electricity.
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Description
Explore the properties and reactions of metals and non-metals in this chemistry quiz. Understand the characteristics of various metals, learn about chemical equations, and delve into the effects of acid rain. Test your knowledge and see how well you grasp these fundamental concepts!
