General Study Prep Quiz
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Questions and Answers

What remains on the filter paper when filtering a mixture of sand and water?

  • Water
  • Copper sulfate solution
  • Residual liquid
  • Sand (correct)

What happens to copper sulfate when it is dissolved in water?

  • It forms a solid residue.
  • It forms a homogeneous solution. (correct)
  • It separates into two different solutions.
  • It undergoes evaporation.

What is the main purpose of distillation in the context provided?

  • To isolate the solvent from a solution. (correct)
  • To separate insoluble solids from liquids.
  • To create a chromatogram.
  • To evaporate liquids at high temperatures.

During the evaporation process of a salt solution, what is left behind?

<p>Only the salt remains. (D)</p> Signup and view all the answers

In chromatography, what does the chromatogram represent?

<p>The snapshot of color distribution in the solvent. (A)</p> Signup and view all the answers

What is produced when sulfuric acid reacts with metals?

<p>Metal sulfates (D)</p> Signup and view all the answers

Which process describes the gain of oxygen by a substance during a reaction?

<p>Oxidation (B)</p> Signup and view all the answers

What equation correctly represents a reaction involving carbon and copper oxide?

<p>2CuO + C → 2Cu + CO2 (A)</p> Signup and view all the answers

What is the role of carbon in the reaction with metal oxides?

<p>To reduce the metal oxide (A)</p> Signup and view all the answers

What characteristic of alloys makes them more useful than pure metals?

<p>Their disruption of atomic layers (A)</p> Signup and view all the answers

How is the relative formula mass calculated for the compound MgCl2?

<p>24 + (2 × 35.5) = 95 (A)</p> Signup and view all the answers

What happens to a metal during its reduction process?

<p>It gains electrons (C)</p> Signup and view all the answers

Which of the following statements is true about atoms?

<p>Atoms are the building blocks of elements. (B)</p> Signup and view all the answers

What primarily causes substances to change state?

<p>Changes in temperature (D)</p> Signup and view all the answers

Which of the following best describes a fluid?

<p>A liquid or gas that can flow and change shape (B)</p> Signup and view all the answers

How does atmospheric pressure change with altitude?

<p>It decreases as altitude increases (B)</p> Signup and view all the answers

What is the nature of the state changes in substances?

<p>They can be reversed under specific conditions (A)</p> Signup and view all the answers

What is the direction of pressure exerted by fluids on surfaces?

<p>Perpendicular to the surface (D)</p> Signup and view all the answers

Which of the following statements about Brownian motion is accurate?

<p>It involves the constant movement of particles in a fluid (A)</p> Signup and view all the answers

In which condition does the weight of air above you decrease?

<p>When you ascend to a higher altitude (D)</p> Signup and view all the answers

What happens to the arrangement and motion of particles when a substance changes state?

<p>They change and can become more loosely arranged with increased motion (D)</p> Signup and view all the answers

What is the role of cartilage at a joint?

<p>To provide a smooth surface for joint movement (C)</p> Signup and view all the answers

Which type of joint allows the least amount of movement?

<p>Fixed joint (C)</p> Signup and view all the answers

What is the primary function of red blood cells?

<p>Carry oxygen throughout the body (D)</p> Signup and view all the answers

What do we call the process by which muscles and bones work together to exert forces?

<p>Biomechanics (B)</p> Signup and view all the answers

Which structure provides protection to the spinal cord?

<p>The backbone (D)</p> Signup and view all the answers

How do muscles achieve movement of bones at joints?

<p>By contracting while the opposing muscle relaxes (C)</p> Signup and view all the answers

Where are blood cells primarily produced in the body?

<p>In the bone marrow (D)</p> Signup and view all the answers

Which of the following is a characteristic of synovial joints?

<p>They allow extensive movement and have synovial fluid (A)</p> Signup and view all the answers

Which of the following properties is NOT typically associated with metals?

<p>Low density (A)</p> Signup and view all the answers

What is the arrangement criteria for elements in the modern periodic table?

<p>By increasing atomic number (D)</p> Signup and view all the answers

What term is used to refer to the horizontal rows in the periodic table?

<p>Periods (B)</p> Signup and view all the answers

In the chemical formula CO2, what does the '2' represent?

<p>The number of oxygen atoms (A)</p> Signup and view all the answers

Which of the following statements about groups in the periodic table is correct?

<p>Elements in the same group have similar properties (B)</p> Signup and view all the answers

Which element is an exception to the general state of metals at room temperature?

<p>Mercury (C)</p> Signup and view all the answers

What is the primary purpose of the periodic table?

<p>To predict the properties of elements (C)</p> Signup and view all the answers

Which of the following characteristics is NOT commonly shared by metals?

<p>Good insulators of heat (D)</p> Signup and view all the answers

What is a characteristic of compounds?

<p>They contain atoms of two or more different elements. (B)</p> Signup and view all the answers

Which statement accurately describes how chemical symbols are formatted?

<p>The first letter is capitalized while the second is lowercase. (A)</p> Signup and view all the answers

What is true about the atoms of different elements?

<p>They can contain varying numbers of protons. (A)</p> Signup and view all the answers

Which of the following correctly represents a molecule?

<p>H2O represents one water molecule. (D)</p> Signup and view all the answers

Which example indicates that atoms can exist independently?

<p>Helium gas remains as separate atoms. (A)</p> Signup and view all the answers

Who is credited with creating the first periodic table?

<p>Mendeleev (B)</p> Signup and view all the answers

Which of the following is NOT a common property of metals?

<p>Low boiling point (D)</p> Signup and view all the answers

What information does the formula CO provide?

<p>It consists of one carbon atom and one oxygen atom. (B)</p> Signup and view all the answers

Flashcards

Skeletal System's Role

Supporting your body, allowing it to stand upright and move

Skeletal System's Role

Protecting delicate organs from damage

Skeletal System's Role

Bones connected by joints, allowing for movement

Cartilage

The tough, smooth substance covering the ends of bones in a joint

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Synovial Fluid

The slippery liquid that lubricates joints

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Ligaments

Strong, fibrous tissue connecting bones in a joint

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Arthritis

The breakdown of cartilage in joints, causing pain and stiffness

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Biomechanics

The study of how muscles and bones work together to produce force

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What is an atom?

The smallest unit of an element that can exist.

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What is a molecule?

A group of two or more atoms chemically bonded together.

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What is a compound?

A substance made up of two or more different elements chemically combined in a fixed ratio.

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What is a chemical symbol?

A shorthand representation of an element using one or two letters.

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What is the periodic table?

A table that organizes elements based on their properties.

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What is a proton?

A positively charged particle found in the nucleus of an atom.

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What is a neutron?

A neutral particle found in the nucleus of an atom.

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What is an electron?

A negatively charged particle that orbits the nucleus of an atom.

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Relative formula mass

The total mass of all the atoms in one molecule of a compound.

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Compound

A substance made up of two or more elements chemically bonded together.

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Element

A substance made up of only one type of atom.

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Alloy

Materials made by mixing two or more metals together.

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Chemical formula

A representation of a compound using symbols and numbers to show the types and numbers of atoms present.

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Oxidation

A reaction where one substance gains oxygen.

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Reduction

A reaction where one substance loses oxygen.

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Atoms

Tiny particles that everything is made of.

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Filtration

A technique used to separate an insoluble solid from a liquid. The solid is trapped by the filter paper (residue) and the liquid passes through (filtrate).

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Evaporation

A method for separating a soluble solid from a liquid. The liquid evaporates, leaving the solid behind.

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Distillation

A technique for separating a solvent (liquid) from a solution. The solvent with the lower boiling point vaporizes, condenses, and is collected separately.

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Chromatography

A technique that separates substances based on their different attractions to a stationary phase (filter paper) and a mobile phase (solvent). Substances with different affinities travel different distances.

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Chromatogram

The result of a chromatography experiment, showing separated substances in a specific pattern.

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Periodic Table Organization

The modern periodic table organizes elements based on their increasing atomic number (number of protons), with horizontal rows called periods and vertical columns called groups.

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Group Properties

Elements in the same group (vertical column) have the same number of electrons in their outermost shell, leading to similar chemical properties.

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Metal Properties

Metals are typically shiny, good conductors of heat and electricity, and malleable (can be shaped).

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Chemical Formula Numbers

Numbers in a chemical formula indicate the number of atoms of each element present in a molecule. For example, CO2 has one carbon atom and two oxygen atoms.

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Molecule Definition

A molecule contains more than one atom. The chemical formula shows the types and quantities of atoms in a molecule.

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Group Similarity

Elements within the same group have similar properties because they share the same number of valence electrons, affecting how they bond with other elements.

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Metal Strength and Density

Metals are generally hard and strong, with a high density.

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Metal State of Matter

Most metals are solid at room temperature, except for mercury, which is a liquid.

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Change of State

The ability of a substance to transform from one phase to another, like solid to liquid or liquid to gas.

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Particles and State Change

A substance's state is determined by the closeness, arrangement, and motion of its particles.

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Heat and State Change

A state change happens when heat is added or removed, causing the particles' motion and arrangement to change.

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Reversible State Changes

State changes are reversible, meaning a substance can go back and forth between states.

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Fluids: Liquids and Gases

Liquids and gases are fluids. Fluids can flow and change shape.

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Fluid Pressure

Fluids exert pressure perpendicular to surfaces they contact.

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Atmospheric Pressure

The atmosphere exerts pressure on everything due to the weight of air above us.

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Altitude and Atmospheric Pressure

Atmospheric pressure decreases as altitude increases because there is less air above you.

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Study Notes

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This quiz is designed to assess your study skills and prepare you for various topics. Answer a range of questions that will help reinforce your knowledge and identify areas for improvement. Perfect for students looking to enhance their understanding before exams.

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