chemical reaction Crossword Puzzles

Unit 2 2022-03-25

Unit 2 crossword puzzle
Across
  1. The basic unit of life
  2. water-loving
  3. several cells
  4. groups of organs
  5. place where the substrate goes
  6. several tissues
  7. molecules move from being clustered to spread out
  8. transport that doesn't require ATP
  9. only certain things can pass through
  10. reactants in a chemical reaction
Down
  1. water-fearing
  2. groups of organ systems
  3. several atoms
  4. cells spend energy (ATP) to move molecules across the membrane
  5. energy required to activate chemical reactions
  6. something is changed due to extreme conditions
  7. the diffusion of water across a membrane
  8. several organelles
  9. several molecules
  10. lowers the amount of activation energy required for metabolism
  11. the end result

21 Clues: water-loving • water-fearing • several atoms • several cells • the end result • several tissues • groups of organs • several molecules • several organelles • The basic unit of life • groups of organ systems • place where the substrate goes • reactants in a chemical reaction • transport that doesn't require ATP • only certain things can pass through • the diffusion of water across a membrane • ...

Puzzle 48: Electrochemistry 2025-09-09

Puzzle 48: Electrochemistry crossword puzzle
Across
  1. – Conductive material in solution.
  2. – Flow of charge.
  3. – Converts fuel to electricity.
  4. – Protect metal with zinc.
  5. – Conducts electricity.
  6. – Study of electrical chemical reactions.
  7. – Oxidation-reduction reaction.
  8. – Charged particle.
  9. – Path for electrons.
  10. – Negative ion.
  11. – Resistance unit.
  12. – Loss of electrons.
  13. – Same as voltaic.
  14. – Completes circuit.
  15. – Generates current spontaneously.
  16. – Electric current unit.
Down
  1. – Opposes current.
  2. – Splitting by electricity.
  3. – Oxidation occurs.
  4. – Reduction occurs.
  5. – Electric potential difference.
  6. – Charge carrier.
  7. – Metal coating via electricity.
  8. – Gain of electrons.
  9. – Electrochemistry pioneer.
  10. – Metal deterioration.
  11. – Positive and negative side.
  12. – Stores chemical energy.
  13. – Positive ion.
  14. – Device generating electricity chemically.

30 Clues: – Negative ion. • – Positive ion. • – Flow of charge. • – Charge carrier. • – Opposes current. • – Resistance unit. • – Same as voltaic. • – Oxidation occurs. • – Reduction occurs. • – Charged particle. • – Gain of electrons. • – Loss of electrons. • – Completes circuit. • – Path for electrons. • – Metal deterioration. • – Conducts electricity. • – Electric current unit. • – Stores chemical energy. • ...

Science crossword 2021-10-28

Science crossword crossword puzzle
Across
  1. what holds together a molecule.
  2. a type of bond between atoms that share electrons
  3. what lets you see what elements a molecule contains
  4. a type of reaction that gives of heat
  5. the outermost negatively charged subatomic particles that help atoms bond with one another
Down
  1. a type of reaction that takes in heat
  2. when this happens the chemical properties, physical properties, and chemical bonds are changed
  3. a group of atoms
  4. contains protons, neutrons, and electrons
  5. a type of bond that transfers electrons between atoms and bonds the atoms
  6. a negatively charged subatomic particle

11 Clues: a group of atoms • what holds together a molecule. • a type of reaction that takes in heat • a type of reaction that gives of heat • a negatively charged subatomic particle • contains protons, neutrons, and electrons • a type of bond between atoms that share electrons • what lets you see what elements a molecule contains • ...

Extracting metals 2023-07-07

Extracting metals crossword puzzle
Across
  1. is a chemical reaction that involves the loosing of electrons
  2. the name of the gas produced when metal reacts with an acid
  3. what is the name of the acid if the formula is HCl
  4. chemical decomposition produced by passing an electric current through a liquid or solution containing ions.
Down
  1. is a chemical reaction that involves the gaining of electrons by one of the atoms involved in the reaction between two chemicals
  2. we use this element to reduce a less reactive metal out of its ore
  3. a naturally occurring solid material from which a metal or valuable mineral can be extracted profitably
  4. is a reaction when more reactive metal displace less reactive metal out of its ore

8 Clues: what is the name of the acid if the formula is HCl • the name of the gas produced when metal reacts with an acid • is a chemical reaction that involves the loosing of electrons • we use this element to reduce a less reactive metal out of its ore • is a reaction when more reactive metal displace less reactive metal out of its ore • ...

STATES OF MATTER 2024-02-06

STATES OF MATTER crossword puzzle
Across
  1. atoms moving in all directions at high speed
  2. juice in a glass
  3. example of chemical change
  4. allows for electrical charges
  5. solid turns into a liquid
  6. a reaction where heat is released
  7. ability to stretch solids
  8. CREATED, example of vinegar and baking soda
  9. liquid turns into a gas
  10. vibrates in a fixed position
  11. liquid turns into a solid
  12. the ease of shaping solids
Down
  1. a solid turns into a gas
  2. thickness of a liquid
  3. when a smelly fart drops
  4. using gas to power tools
  5. gas turns into a luquid
  6. makes for good building material
  7. a liquid taking the shape of a container
  8. a reaction where hat is absorbed

20 Clues: juice in a glass • thickness of a liquid • gas turns into a luquid • liquid turns into a gas • a solid turns into a gas • when a smelly fart drops • using gas to power tools • solid turns into a liquid • ability to stretch solids • liquid turns into a solid • example of chemical change • the ease of shaping solids • vibrates in a fixed position • allows for electrical charges • ...

275 2025-11-15

275 crossword puzzle
Across
  1. Converts light to electricity
  2. Agent that accepts electrons
  3. Agent that donates electrons
  4. Opposition to electric flow
  5. Partly conducts electricity
  6. Flow of electric charge
  7. Decomposition using electricity
  8. Conductive solution in a cell
  9. Rapid reaction with oxygen
  10. Electrode where reduction occurs
  11. Unit of resistance
  12. Electrical potential difference
Down
  1. Positive nuclear particle
  2. Electrode where oxidation occurs
  3. Conductor in an electric cell
  4. Reaction involving electron transfer
  5. Regions where electrons exist
  6. Gradual metal breakdown by oxidation
  7. Path for electric current
  8. Negative atomic particle
  9. Allows current to flow easily
  10. Blocks flow of electric current
  11. Neutral nuclear particle
  12. Device converting chemical to electrical energy
  13. Single unit of electrochemical system

25 Clues: Unit of resistance • Flow of electric charge • Negative atomic particle • Neutral nuclear particle • Positive nuclear particle • Path for electric current • Rapid reaction with oxygen • Opposition to electric flow • Partly conducts electricity • Agent that accepts electrons • Agent that donates electrons • Converts light to electricity • Conductor in an electric cell • ...

11 2025-11-24

11 crossword puzzle
Across
  1. Converts light to electricity
  2. Agent that accepts electrons
  3. Agent that donates electrons
  4. Opposition to electric flow
  5. Partly conducts electricity
  6. Flow of electric charge
  7. Decomposition using electricity
  8. Conductive solution in a cell
  9. Rapid reaction with oxygen
  10. Electrode where reduction occurs
  11. Unit of resistance
  12. Electrical potential difference
Down
  1. Positive nuclear particle
  2. Electrode where oxidation occurs
  3. Conductor in an electric cell
  4. Reaction involving electron transfer
  5. Regions where electrons exist
  6. Gradual metal breakdown by oxidation
  7. Path for electric current
  8. Negative atomic particle
  9. Allows current to flow easily
  10. Blocks flow of electric current
  11. Neutral nuclear particle
  12. Device converting chemical to electrical energy
  13. Single unit of electrochemical system

25 Clues: Unit of resistance • Flow of electric charge • Negative atomic particle • Neutral nuclear particle • Positive nuclear particle • Path for electric current • Rapid reaction with oxygen • Opposition to electric flow • Partly conducts electricity • Agent that accepts electrons • Agent that donates electrons • Converts light to electricity • Conductor in an electric cell • ...

Chemical Reactions and Equations 2024-05-02

Chemical Reactions and Equations crossword puzzle
Across
  1. A reaction in which energy is absorbed
  2. Another name for Calcium Hydroxide
  3. Process which involves gain of oxygen or loss of hydrogen
  4. Colour of ferrous sulphate heptahydrate crystals
  5. The process in which new substances with new properties are formed
  6. Reactions in which a compound splits up into two or more simpler substances are called_________
  7. A metal that is stored under kerosene oil
  8. The chemical reactions between zinc and dilute sulphuric acid is characterized by the evolution of ________
  9. Reaction in which two or more substances combine to form a single substance is called________
Down
  1. A reaction which produces insoluble salts
  2. Colour of lead iodide precipitate
  3. A reaction in which heat is given out along with the products
  4. Another name for Calcium Oxide
  5. Decomposition of silver chloride is caused by__________
  6. To prevent oxidation,bags of chips are flushed with _________
  7. Substance used for whitewashing

16 Clues: Another name for Calcium Oxide • Substance used for whitewashing • Colour of lead iodide precipitate • Another name for Calcium Hydroxide • A reaction in which energy is absorbed • A reaction which produces insoluble salts • A metal that is stored under kerosene oil • Colour of ferrous sulphate heptahydrate crystals • ...

Chapter Bio Key Terms 2023-09-21

Chapter Bio Key Terms crossword puzzle
Across
  1. A substance that is present before a chemical re­action and takes part in it, usually shown on the left­hand side of a chemical equation.
  2. Quality of molecules having an uneven distribution of electrical charge, resulting in some regions of a mole­cule having negative charge while others are positive.
  3. a measurement of the average speed of the particles within a substance.
  4. A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA
  5. the building block of matter; the smallest possible particle of an element.
  6. A class of organic compounds that serve as the building blocks of proteins.
  7. A substance that binds to an enzyme and re­duces its activity, thus slowing a chemical reaction that the enzyme catalyzes
  8. A class of simple organic compounds important in living things as a source of both energy and structure.
  9. A change in a substance that results in one or more new substances being formed that have different physical and chemical properties than those of the original substance.
  10. A class of nonpolar organic compounds that are in­soluble in water and are used for energy storage and cell membranes in living things.
  11. the tendency of energy to disperse and become less available to do work.
  12. The attraction between like particles within polar substances.
  13. An attraction between two atoms as a result of sharing or transferring valence electrons.
Down
  1. the physical stuff that makes up the universe. Anything that occupies space and has mass.
  2. A covalently bonded compound con­taining the element carbon.
  3. A naturally occurring catalyst, usually a protein.
  4. A substance that changes the rate of a chemical re­action but is not itself used up or affected by the reaction.
  5. The smallest particle of a The smallest particle of a covalently bonded compound.
  6. A substance that can produce hydroxide ions (OH)­ accept hydrogen ions (H+) in solution.
  7. An organic compound comprised of the ele­ments carbon, hydrogen, and oxygen; includes sugars, starch and cellulose.
  8. The attraction of particles in one substance for particles in a different substance.
  9. the ability to do work. Especially in biology, the driver of the physical and chemcial processes necessary for life.
  10. A change in a substance that does not change the identity of the substance.
  11. A pure substance made from two or more elements that are chemically combined.
  12. a pure substance made of only one kind of atom.
  13. A substance that can produce hydrogen ions (H+) solution. .
  14. The process by which particles in solution are evenly distributed throughout the solvent by Brownian motion
  15. The substances formed during a chemical reaction, usually indicated on the right­hand side of a chemical equation

28 Clues: a pure substance made of only one kind of atom. • A naturally occurring catalyst, usually a protein. • A covalently bonded compound con­taining the element carbon. • The attraction between like particles within polar substances. • A substance that can produce hydrogen ions (H+) solution. . • ...

UOI & Math 2017-11-08

UOI & Math crossword puzzle
Across
  1. control ____, independent ___, dependent ___
  2. when someone does a wrong thing and you ____
  3. grit
  4. smart
  5. somebody who does experiments that relly change the world
  6. you want to find out something
  7. another name for the split strategy
  8. a portioln of matter
  9. When you feel grateful for something
  10. what a stimulus causes
  11. tricks to help you remember things
Down
  1. chemical and ____
  2. bigger things that make up the world
  3. _____ variable
  4. things that make up the world
  5. has gratitude in it
  6. part of character strengths and it has humility
  7. the way things work
  8. solid, ____, gas
  9. physical and _____
  10. the science of living things (like us!)

21 Clues: grit • smart • _____ variable • solid, ____, gas • chemical and ____ • physical and _____ • has gratitude in it • the way things work • a portioln of matter • what a stimulus causes • things that make up the world • you want to find out something • tricks to help you remember things • another name for the split strategy • bigger things that make up the world • ...

Chapter 2 Vocabulary (Iris Niang) 2023-09-21

Chapter 2 Vocabulary (Iris Niang) crossword puzzle
Across
  1. A change in a substance that results in one or more new substances being formed that have dif­ferent physical and chemical properties than those of the original substance.
  2. A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA.
  3. The ability to do work. Especially in biology, the driver of the physical and chemical processes necessary for life.
  4. A class of nonpolar organic compounds that are insoluble in water and are used for energy storage and cell membranes in living things.
  5. A class of simple organic compounds important in living things as a source of both energy and structure.
  6. An organic compound comprised of the ele­ments carbon, hydrogen, and oxygen; includes sugars, starch and cellulose.
  7. The attraction between like particles within polar substances.
  8. A substance that changes the rate of a chemical re­action but is not itself used up or affected by the reaction.
  9. The substances formed during a chemical reaction, usually indicated on the right­hand side of a chemical equation.
  10. The smallest particle of a covalently bonded com­pound.
  11. A substance that can produce hydroxide ions or­ accept hydrogen ions in a solution.
  12. A substance that can produce hydrogen ions in a solution.
  13. The tendency of energy to disperse and become less available to do work.
  14. A pure substance made of only one kind of atom.
  15. A substance that binds to an enzyme and re­duces its activity, thus slowing a chemical reaction that the enzyme catalyzes.
  16. A substance that is present before a chemical re­action and takes part in it, usually shown on the left­-hand side of a chemical equation.
  17. The process by which one substance, the sol­ ute, is broken up into smaller pieces by and distributed within a second substance, the solvent.
  18. The process by which particles in solution are evenly distributed throughout the solvent by Brownian motion.
Down
  1. A pure substance made from two or more ele­ments that are chemically combined.
  2. A covalently bonded compound con­ taining the element carbon.
  3. The building block of matter; the smallest possible particle of an element.
  4. A measurement of the average speed of the particles within a substance.
  5. A change in a substance that does not change the identity of the substance (e.g., a change of form or state).
  6. Quality of molecules having an uneven distribution of electrical charge, resulting in some regions of a mole­cule having negative charge while others are positive.
  7. A naturally occurring catalyst, usually a protein.
  8. An attraction between two atoms as a result of shar­ing or transferring valence electrons.
  9. The attraction of particles in one substance for particles in a different substance.
  10. The physical stuff that makes up the universe. Anything that occupies space and has mass.
  11. A class of organic compounds that serve as the building blocks of proteins.

29 Clues: A pure substance made of only one kind of atom. • A naturally occurring catalyst, usually a protein. • The smallest particle of a covalently bonded com­pound. • A substance that can produce hydrogen ions in a solution. • A covalently bonded compound con­ taining the element carbon. • The attraction between like particles within polar substances. • ...

Modified Vocabulary Review Part 4 2016-06-01

Modified Vocabulary Review Part 4 crossword puzzle
Across
  1. A charged atom
  2. Can be measured on a scale from 0-14
  3. Shows the reactants and the products of a chemical reaction (2 Words)
  4. A reaction where energy is released (2 Words)
  5. Turns litmus paper red, the formula always begins with “H”
  6. A reaction between and acid and a base, produces salt and water
  7. A bond that shares electrons (between 2 nonmetals) (2 Words)
  8. A negatively charged ion
Down
  1. A reaction where energy is absorbed (2 Words)
  2. A bond between two metals (2 Words)
  3. A positively charged ion
  4. A bond that donates/accepts electrons (between a metal and a nonmetal) (2 Words)
  5. Turns pink in the presence of phenolphthalein, ends in OH

13 Clues: A charged atom • A positively charged ion • A negatively charged ion • A bond between two metals (2 Words) • Can be measured on a scale from 0-14 • A reaction where energy is absorbed (2 Words) • A reaction where energy is released (2 Words) • Turns pink in the presence of phenolphthalein, ends in OH • Turns litmus paper red, the formula always begins with “H” • ...

Secondary 2 Science Fun 2024-10-12

Secondary 2 Science Fun crossword puzzle
Across
  1. - The force that attracts two bodies towards one another, due to their mass.
  2. - The study of heat and energy transfer between systems.
  3. - A protein that acts as a biological catalyst to speed up chemical reactions in cells.
  4. - The tendency of an object to resist changes in its state of motion.
  5. - The transfer of heat through a fluid (liquid or gas) caused by molecular motion.
  6. - The repetitive back-and-forth movement in a regular rhythm, such as a pendulum or wave motion.
  7. - A measure of disorder or randomness in a closed system.
  8. - Relating to the interrelation of electric currents or fields and magnetic fields.
  9. - A substance that increases the rate of a chemical reaction without undergoing any change.
  10. - Variants of a particular chemical element that differ in neutron number.
  11. - The process where water is absorbed by plants and released as vapor through small pores in the leaves.
Down
  1. - Refers to concepts and laws defined by Sir Isaac Newton, especially in mechanics and motion.
  2. - Organelles found in cells, known as the powerhouse of the cell where respiration and energy production occur.
  3. - The quantity of motion an object has, calculated as the product of its mass and velocity.
  4. - The combining power of an element, especially in forming compounds or molecules.
  5. - A condition in which all acting influences are balanced in a stable system, particularly in chemical reactions.
  6. - The phase transition of a substance directly from a solid to a gas without passing through the liquid state.
  7. - A measure of a fluid's resistance to flow.
  8. - The ability of an object to float in a fluid due to the upward force exerted by the fluid.
  9. - The process where light energy is converted to chemical energy in plants.
  10. - A chemical reaction that involves the gain of electrons, often associated with the loss of oxygen.
  11. - The chemical decomposition produced by passing an electric current through a liquid or solution containing ions.
  12. - The process by which molecules spread from areas of high concentration to areas of low concentration.
  13. - The process by which plants convert light energy into chemical energy.
  14. - The process in which a substance loses electrons, often associated with the gain of oxygen.

25 Clues: - A measure of a fluid's resistance to flow. • - The study of heat and energy transfer between systems. • - A measure of disorder or randomness in a closed system. • - The tendency of an object to resist changes in its state of motion. • - The process by which plants convert light energy into chemical energy. • ...

Chemistry crossword 2022-12-07

Chemistry crossword crossword puzzle
Across
  1. the amount of heat energy required to raise the temperature of a unit mass of that substance by one degree Celsius
  2. The horizontal rows of the periodic table
  3. ions that are positively charged
  4. Chemical reactions that release energy
  5. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
  6. the eight-electron arrangement in the outer electron shell of the noble-gas atoms
  7. ions that are negatively charged
  8. the exchange of "thermal” energy due to a temperature difference
  9. the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus
  10. the core electrons repelling the outer electrons, which lowers the effective charge of the nucleus on the outer electrons
  11. a class of substances characterized by high electrical and thermal conductivity as well as by malleability, ductility, and high reflectivity of light
Down
  1. a column in the periodic table of the chemical elements
  2. Scientific notation is a way to express numbers as the product of two numbers
  3. a class of reactions in which two molecules combine, usually in the presence of a catalyst, with elimination of water or some other simple molecule
  4. a high-temperature redox chemical reaction between a fuel and an oxidant usually atmospheric oxygen that produces oxidize often gaseous products in a mixture termed as smoke
  5. the lowest temperature that is theoretically can be
  6. a group of rare gases that include helium, neon, argon, krypton, xenon, and sometimes radon and that exhibit great stability and extremely low reaction rates
  7. a chemical element that forms a simple substance having properties intermediate between those of a typical metal and a typical nonmetal
  8. A chemical element (such as boron, carbon or nitrogen) that lacks metal properties and is capable of forming anions, acid oxides, acids, and stable hydrogen compounds
  9. chemical reactions in which the reactants absorb heat energy from the surroundings to form products
  10. any of the six nonmetallic elements that constitute Group 17

21 Clues: ions that are positively charged • ions that are negatively charged • Chemical reactions that release energy • The horizontal rows of the periodic table • the lowest temperature that is theoretically can be • a column in the periodic table of the chemical elements • any of the six nonmetallic elements that constitute Group 17 • ...

Crossword 2024-09-17

Crossword crossword puzzle
Across
  1. สารที่ใช้สำหรับทำความสะอาด ประกอบด้วยเกลือของกรดไขมัน
  2. สารที่สามารถรับไฮโดรเจนไอออนหรือปล่อยไฮดรอกไซด์ไอออนในสารละลาย
  3. สารประกอบเคมีที่ประกอบด้วยธาตุไฮโดรเจนและคาร์บอนเท่านั้น เช่น มีเทน
  4. สารที่เกิดขึ้นจากปฏิกิริยาเคมี
  5. reaction กระบวนการที่สารตั้งต้นเปลี่ยนไปเป็นผลิตภัณฑ์ใหม่
  6. ปฏิกิริยาระหว่างกรดกับเบสที่ทำให้เกิดเกลือและน้ำ
  7. decay กระบวนการที่ธาตุกัมมันตรังสีสลายตัวไปเป็นธาตุใหม่และปล่อยรังสี
  8. ปฏิกิริยาที่สารรวมตัวกับออกซิเจนและปล่อยพลังงานออกมาในรูปของความร้อนและแสง
  9. acid กรดที่เกิดจากไขมัน ประกอบด้วยหมู่กรดคาร์บอกซิลิกและสายคาร์บอน
  10. สารที่ช่วยลดการเกิดปฏิกิริยาออกซิเดชันในร่างกาย ซึ่งอาจทำลายเซลล์
  11. การแยกนิวเคลียสอะตอมออกเป็นสองส่วนและปลดปล่อยพลังงาน
  12. สารที่เข้าร่วมในปฏิกิริยาเคมี
  13. อะตอมของธาตุเดียวกันที่มีจำนวนโปรตอนเท่ากัน แต่จำนวนนิวตรอนต่างกัน
  14. acid หน่วยโครงสร้างพื้นฐานของโปรตีน ประกอบด้วยหมู่อะมิโน และหมู่กรดคาร์บอกซิลิก
  15. สถานะที่ปฏิกิริยาไปข้างหน้าและย้อนกลับเกิดขึ้นพร้อมกันในอัตราเท่ากัน
  16. สารอาหารประเภทน้ำตาลและแป้ง เป็นแหล่งพลังงานหลักของร่างกาย
  17. ปฏิกิริยาที่สารสองหรือมากกว่ามารวมกันเป็นสารประกอบใหม่
  18. การสูญเสียอิเล็กตรอนหรือการรวมตัวกับออกซิเจนในปฏิกิริยาเคมี
Down
  1. กระบวนการที่อะตอมหรือโมเลกุลเปลี่ยนไปเป็นไอออนโดยการเพิ่มหรือลดอิเล็กตรอน
  2. สารประกอบเคมีที่มีหมู่ไฮดรอกซิล เช่น เอทานอล
  3. สารที่มีรสเปรี้ยว สามารถปล่อยไฮโดรเจนไอออนในสารละลาย
  4. การได้รับอิเล็กตรอนหรือการลดออกซิเจนในปฏิกิริยาเคมี
  5. ปฏิกิริยาที่สารประกอบแตกตัวเป็นสารใหม่ที่ง่ายกว่า
  6. เบสที่สามารถละลายในน้ำได้ เช่น โซเดียมไฮดรอกไซด์
  7. ค่าแสดงความเป็นกรด-เบสในสารละลาย มีค่าตั้งแต่ 0-14 โดยค่าต่ำกว่า 7 แสดงว่าเป็นกรด และสูงกว่า 7 เป็นเบส
  8. สารประกอบที่เกิดจากการรวมกันของกรดกับแอลกอฮอล์ มีกลิ่นหอม ใช้ในอุตสาหกรรมเครื่องหอมและสารแต่งกลิ่น
  9. สารประกอบที่เกิดจากการเชื่อมต่อของโมเลกุลเล็กๆ ซ้ำๆ กัน เช่น พลาสติก
  10. กระบวนการแยกสารประกอบด้วยกระแสไฟฟ้า
  11. พอลิเมอร์ชนิดหนึ่งที่มีลักษณะยืดหยุ่น สามารถหล่อเป็นรูปร่างต่างๆ ได้
  12. สารประกอบที่เกิดจากปฏิกิริยาระหว่างกรดและเบส เช่น เกลือแกง
  13. สารที่เพิ่มความเร็วของปฏิกิริยาเคมีโดยไม่ถูกเปลี่ยนแปลงในกระบวนการ
  14. โปรตีนที่ทำหน้าที่เร่งปฏิกิริยาเคมีในสิ่งมีชีวิต
  15. สารอาหารที่ร่างกายต้องการในปริมาณน้อย เพื่อช่วยในการทำงานของระบบต่างๆ ในร่างกาย
  16. สารที่ใช้ทำความสะอาด เช่น น้ำยาล้างจานและผงซักฟอก
  17. สารที่แยกตัวออกมาในรูปของแข็งจากสารละลาย
  18. เวลาที่ใช้ให้ธาตุกัมมันตรังสีลดลงครึ่งหนึ่งจากปริมาณเริ่มต้น
  19. กระบวนการรวมตัวของนิวเคลียสอะตอมเพื่อเกิดเป็นอะตอมใหม่และปลดปล่อยพลังงาน
  20. น้ำตาลชนิดหนึ่งที่เป็นแหล่งพลังงานหลักของร่างกาย
  21. สารอาหารสำคัญที่สร้างจากกรดอะมิโน ช่วยในการซ่อมแซมและสร้างเนื้อเยื่อในร่างกาย
  22. reaction ปฏิกิริยาที่เกิดขึ้นพร้อมกันทั้งการออกซิเดชันและการรีดักชัน

40 Clues: สารที่เข้าร่วมในปฏิกิริยาเคมี • สารที่เกิดขึ้นจากปฏิกิริยาเคมี • กระบวนการแยกสารประกอบด้วยกระแสไฟฟ้า • สารที่แยกตัวออกมาในรูปของแข็งจากสารละลาย • สารประกอบเคมีที่มีหมู่ไฮดรอกซิล เช่น เอทานอล • เบสที่สามารถละลายในน้ำได้ เช่น โซเดียมไฮดรอกไซด์ • ปฏิกิริยาระหว่างกรดกับเบสที่ทำให้เกิดเกลือและน้ำ • โปรตีนที่ทำหน้าที่เร่งปฏิกิริยาเคมีในสิ่งมีชีวิต • ...

Science: Matter and Chemical Change 2014-11-10

Science: Matter and Chemical Change crossword puzzle
Across
  1. the Law of ________ of Mass
  2. an atom or group of atoms that become electrically charges because it has lost or gained electrons
  3. organic catalysts
  4. positively charged particles
  5. a chemical reaction that takes place in the cells of your body
  6. a pure substance that cannot be broken down into other substances
  7. supported the idea that everything was made up of the 4 elements
  8. substance that strongly resists the flow of electricity
  9. occurs when oxygen reacts with metal, a chemical reaction in which the metal is decomposed
  10. Father of Modern Chemistry
  11. characteristics that can be used to describe a substance
  12. neutral particles
  13. occurs when oxygen reacts to another substance to form a new substance and releases energy
Down
  1. most reactive of the metals
  2. the 18 columns on the Periodic Table of Elements
  3. ______ systems is an experiment in which reactants and products can not escape
  4. stated each type of material was made up of a different type of atomos
  5. published by Andreas Libau in 1597, it describes the achievements of alchemists
  6. substances that helps reaction proceed faster
  7. compound formed when 2 non-metals combine
  8. experimented with the behaviour of gases
  9. the mass of one of an element
  10. Workplace Hazardous Material Information System
  11. the rows in the Periodic Table of Elements
  12. represents the number of atoms
  13. has the element symbol Br

26 Clues: organic catalysts • neutral particles • has the element symbol Br • Father of Modern Chemistry • most reactive of the metals • the Law of ________ of Mass • positively charged particles • the mass of one of an element • represents the number of atoms • experimented with the behaviour of gases • compound formed when 2 non-metals combine • the rows in the Periodic Table of Elements • ...

Crossword puzzle 2022-08-24

Crossword puzzle crossword puzzle
Across
  1. avoidance of potential ...... is important
  2. the chemical engineer must never lose sight of the practical limitations involved in a.....
  3. the principal function of most ...... audits in the past has been to verify the adequancy of safety equipment and rules.
  4. steam and ..... requirements are higher in plant
  5. ..... location is final geographic location of industry.
  6. the minimum concentration of fuel in air required for ignition at ambient temp. is known as the .....
  7. the time value of money has been integrated into investment evaluation system by means of......
  8. the last general design task is to establish correct ...... and piping layouts.
  9. In ..... chemical reaction propagates at supersonic velocity
Down
  1. the hazard and operability study is known as......
  2. generation of the maximal structure corresponding to the maximal reaction network with Algorithm.......
  3. a qualitative flow ....... is important for a plant design
  4. In Hazop study quantitave decrease is called as a word .....
  5. Fault tree analysis is also called .....
  6. it is a small scale replica of final plant.
  7. most separation process results in ...... product streams
  8. a measure of the ability of a waste component to consume the oxygen desolved in water is known as .....
  9. one measure of profitability is often used is the...
  10. generation of solution structure corresponding to the combinatorially feasible reaction networks as the solution structure with algorithm.....
  11. the characteristic of proposed land is known as ...... characteristic

20 Clues: Fault tree analysis is also called ..... • avoidance of potential ...... is important • it is a small scale replica of final plant. • steam and ..... requirements are higher in plant • the hazard and operability study is known as...... • one measure of profitability is often used is the... • ..... location is final geographic location of industry. • ...

Chapter Two Crossword 2019-03-30

Chapter Two Crossword crossword puzzle
Across
  1. A colorless, volatile, flammable liquid produced in the natural fermentation of sugars.
  2. Gains electrons in a reaction.
  3. Cx(H2O)y
  4. The sum of all the biochemical reactions in the body.
  5. A substance whose molecule is made up of a glycerol molecule, two fatty acids, and a phosphate group.
  6. A sugar molecule consisting of two monosaccharides joined together by a glycosidic bond.
  7. An organic compound derived from the replacement of hydrogen atoms by organic groups
  8. A complex molecule is broken down; involving the addition of water.
  9. A colorless, volatile liquid produced in the fermentation of sugars.
  10. The chemical released in a reaction between an acid and an alcohol.
Down
  1. Any of a large group of organic compounds in foods and living tissues, including sugars.
  2. The joining of two monosaccharides.
  3. A polymer whose subunits are monosaccharides joined together by glycosidic bonds.
  4. Looks at chemical reactions of biological molecules.
  5. Any of a class of organic compounds that are fatty acids, and are insoluble in water but soluble in organic solvents.
  6. A molecule consisting of a single sugar until within the General Formula.
  7. A giant molecule made up of smaller, repeating subunits linked together in a chain.
  8. Loses electrons in a reaction.
  9. A lipid made up of a glycerol molecule and three fatty acids.
  10. A relatively simple molecule used as the basic building block for more complex molecules (polymers).

20 Clues: Cx(H2O)y • Gains electrons in a reaction. • Loses electrons in a reaction. • The joining of two monosaccharides. • Looks at chemical reactions of biological molecules. • The sum of all the biochemical reactions in the body. • A lipid made up of a glycerol molecule and three fatty acids. • A complex molecule is broken down; involving the addition of water. • ...

Chem Recap - HL 2024-08-21

Chem Recap - HL crossword puzzle
Across
  1. - The mass of one mole of a substance.
  2. - The energy associated with a chemical reaction that can be used to do work.
  3. - Elements found in the d-block of the periodic table, known for forming colored compounds.
  4. - An equation that links the rate of reaction to the concentration of reactants.
  5. - Atoms and ions that have the same number of electrons.
  6. - A measure of an atom's ability to attract and bond with electrons.
  7. - Weak forces of attraction between molecules.
Down
  1. - The three-dimensional arrangement of atoms in a molecule.
  2. - The energy required to remove an electron from a gaseous atom or ion.
  3. - The energy required to break a bond in a molecule.
  4. - The number of atoms or molecules in one mole of a substance.
  5. - Patterns in the periodic table that show the variations of properties across elements.
  6. - The minimum amount of energy required for a chemical reaction to occur.
  7. - The process of mixing atomic orbitals in a molecule to form new hybrid orbitals.
  8. - The energy required to separate one mole of a solid ionic compound into its gaseous ions.
  9. - A type of covalent bond where electrons are unequally shared between atoms.
  10. - The total charge of all the protons in the nucleus.
  11. - A transition metal ion binds with this species to form a complex ion.
  12. - A measure of the disorder or randomness in a system.
  13. - Heat inside.

20 Clues: - Heat inside. • - The mass of one mole of a substance. • - Weak forces of attraction between molecules. • - The energy required to break a bond in a molecule. • - The total charge of all the protons in the nucleus. • - A measure of the disorder or randomness in a system. • - Atoms and ions that have the same number of electrons. • ...

Exam 2 Crossword 2024-10-18

Exam 2 Crossword crossword puzzle
Across
  1. energy that matter possesses because of its location
  2. the gain of electrons by a reactant
  3. partial degradation of sugars
  4. binds to one of the enzyme subunits and stabilizes the active form of the enzyme
  5. binds to one of the enzyme subunits and stabilizes the inactive form of the enzyme
  6. energy that matter possesses because of its chemical structure
  7. more concentrated to where it is less concentrated
  8. reactions that break down complex molecules
  9. “Splits” 1 glucose into 2 pyruvic acid
Down
  1. energy that can perform work when temperature and pressure are uniform throughout the system
  2. the reactant(s) that an enzyme acts on
  3. a reaction that absorbs free energy
  4. a mosaic of protein molecules bobbing in a fluid bilayer of phospholipids
  5. the loss of electrons from a reactant
  6. a protein that speeds up a reaction without being consumed by it
  7. the energy associated with the relative motion of objects
  8. the diffusion of water across a cell membranes
  9. the energy associated with the movement of atoms or molecules
  10. less concentrated to more concentrated
  11. immediate source of energy that powers cellular work
  12. reactions that build up complex molecules
  13. Requires O2
  14. Does no require O2
  15. helps the membrane resist changes in fluidity when the temperature changes
  16. a reaction that releases free energy
  17. the totality of an organism’s chemical reactions

26 Clues: Requires O2 • Does no require O2 • partial degradation of sugars • a reaction that absorbs free energy • the gain of electrons by a reactant • a reaction that releases free energy • the loss of electrons from a reactant • the reactant(s) that an enzyme acts on • less concentrated to more concentrated • “Splits” 1 glucose into 2 pyruvic acid • ...

Catalysis and surface chemistry 2025-11-03

Catalysis and surface chemistry crossword puzzle
Across
  1. Adsorption ------- with pressure, reaches a maximum, and becomes constant.
  2. The juice extracted from the cane is treated with animal charcoal for the ----- of the coloring agent.
  3. The two primary methods used for predicting the adsorption capacity of a given material are known as the ------and Langmuir isotherms.
  4. ------cannot be reversed and occurs at high temperatures initially; specific in nature.
  5. ...... the catalyst is present in the same phase as the reactants.
  6. substances upon whose surface the change of concentration occurs is called .....
  7. poisonous gases get ---- at the surface of the coal.
  8. The accumulation of molecules on a surface.
  9. retards the rate of a chemical reaction.
  10. The catalyst is ....... chemically at the end of the reaction.
Down
  1. releasing heat as surface energy decreases (∆H is negative).
  2. ........ Manufacture of ammonia using iron as a catalyst.
  3. Does adsorption increase with temperature?
  4. The common surface between the two phases where the adsorbed molecules concentrate is called the ......
  5. It means constant temperature.
  6. --- by which molecules or atoms are released from a solid surface into a gas or liquid phase.
  7. ----- is a substance that changes the speed of a reaction.
  8. ----- Weak, van der Waals forces hold molecules to the surface.
  9. Chemistry is the study of the chemical phenomena that occur at the surface.
  10. -----is a bulk phenomenon, while adsorption is a surface phenomenon.

20 Clues: It means constant temperature. • retards the rate of a chemical reaction. • Does adsorption increase with temperature? • The accumulation of molecules on a surface. • poisonous gases get ---- at the surface of the coal. • ........ Manufacture of ammonia using iron as a catalyst. • ----- is a substance that changes the speed of a reaction. • ...

Word Wall Words #3 2024-12-04

Word Wall Words #3 crossword puzzle
Across
  1. A substance made of two or more different elements chemically combined in a specific ratio or proportion.
  2. A mixture that features distinct components that can be easily seen and sorted.
  3. A reaction that absorbs energy.
  4. Non-living things
  5. The attraction between ions with opposite charges. The atoms gain or lose electrons to form a chemical bond.
  6. The practice of using less of a resource so that it can last longer.
  7. A pure substance that cannot be broken down into other substances by chemical or physical means.
  8. Next to or near something
  9. A mixture that often looks the same throughout the entire mixture.
  10. The basic particle from which all elements are made; the smallest particle of an element that has the properties of that element.
  11. The variable that changes as a result of the independent variable manipulation.
  12. The average annual conditions of temperature, precipitation, winds, and clouds in an area.
  13. To tell by saying or writing how something looks, smells, sounds, feels, or tastes like
  14. The measurement of how much mass of a substance is contained in a given volume.
  15. A reaction that releases energy, usually in the form of heat.
Down
  1. The capacity to create and maintain healthy, equitable, and diverse communities and ecosystems.
  2. A measure of how much matter is in an object.
  3. To suggest a conclusion by looking at information
  4. Substance that is released or discharged into the air.
  5. The universal measuring system based on units of tens.
  6. Able to be changed or adapted.
  7. A chemical bond formed when two atoms share electrons to form a chemical bond.
  8. A substance formed as a result of a chemical reaction.
  9. The variable you manipulate or vary in an experimental study to explore its effects.
  10. A mixture containing a solvent and at least one solute that has the same properties throughout; a mixture in which one substance dissolves another.
  11. The use of symbols to represent ideas or qualities.
  12. The amount of space that matter occupies.
  13. The electrons that are in the highest energy level of an atom and that are involved in chemical bonding.
  14. A neutral group of two or more atoms held together by covalent bonds.
  15. A simplified representation of a system or phenomenon used to describe the system or explain the phenomenon.
  16. Differences in the living things of an environment.

31 Clues: Non-living things • Next to or near something • Able to be changed or adapted. • A reaction that absorbs energy. • The amount of space that matter occupies. • A measure of how much matter is in an object. • To suggest a conclusion by looking at information • The use of symbols to represent ideas or qualities. • Differences in the living things of an environment. • ...

Photosynthesis and Cellular Respiraton 2024-12-11

Photosynthesis and Cellular Respiraton crossword puzzle
Across
  1. The type of energy needed for photosynthesis to occur
  2. The Organelle that cellular respiration occurs in
  3. A gas produced by photosynthesis we breathe it in
  4. The ending materials in a chemical reaction
Down
  1. AKA sugar, made by photosynthesis
  2. Products and Reactants of photosynthesis and Cellular respiration are _________
  3. The starting materials in a chemical reaction
  4. Photosynthesis only happens in plant cells, cellular respiration however happens in _____ plant and animal cells
  5. The organelle that photosynthesis occurs in
  6. AKA ATP, made by cellular respiration when food is broken down
  7. The type of cell photosynthesis occurs in

11 Clues: AKA sugar, made by photosynthesis • The type of cell photosynthesis occurs in • The organelle that photosynthesis occurs in • The ending materials in a chemical reaction • The starting materials in a chemical reaction • The Organelle that cellular respiration occurs in • A gas produced by photosynthesis we breathe it in • ...

Mester 1 Vocabulary 2022-03-03

Mester 1 Vocabulary crossword puzzle
Across
  1. a reactant in a chemical reaction undergoes a change and becomes this
  2. The change of state from gas to liquid
  3. for something to become a gas it must be heated past its __________ point
  4. when a liquid turns straight into gas/vapor form
  5. Changes in state are often __________
  6. The change of state from a solid straight to a gas
Down
  1. the change in state from gas to solid
  2. have a definite volume but change shape by flowing
  3. a reaction in which CO2, water and sunlight turn into Oxygen gas and sugar
  4. a solid forming in a liquid, a sign of a reaction
  5. A substance that speeds up a reaction without being consumed
  6. has a definite volume and shape, the molecules are attached
  7. a reaction in which oxygen is involved

13 Clues: the change in state from gas to solid • Changes in state are often __________ • The change of state from gas to liquid • a reaction in which oxygen is involved • when a liquid turns straight into gas/vapor form • a solid forming in a liquid, a sign of a reaction • have a definite volume but change shape by flowing • The change of state from a solid straight to a gas • ...

unit 4 crossword puzzle 2021-11-21

unit 4 crossword puzzle crossword puzzle
Across
  1. 2NH4+1(aq)+SO3-2
  2. MdxVd=Mc+Vc
  3. Na+1(aq)+ClO4-1(aq)
  4. shows dissolved ionic compounds as free ions
  5. Al+BaI2=
  6. the moles of solute in a liter solution
  7. K+1(aq)+Cl-1(aq)
  8. equation the visual equation for molarity
  9. show only participating ions
  10. ions that do not participate in the reaction
  11. molarity equation
  12. exchange of positive ions between two compounds
Down
  1. balanced chemical reaction only showing compounds & states
  2. no ions present
  3. few ions present
  4. ionic compounds in water
  5. the part that is being dissolved
  6. does the dissolving when water is the solvent
  7. many ions present
  8. A+BC=AC+B

20 Clues: Al+BaI2= • A+BC=AC+B • MdxVd=Mc+Vc • no ions present • 2NH4+1(aq)+SO3-2 • few ions present • K+1(aq)+Cl-1(aq) • many ions present • molarity equation • Na+1(aq)+ClO4-1(aq) • ionic compounds in water • show only participating ions • the part that is being dissolved • the moles of solute in a liter solution • equation the visual equation for molarity • ...

Carbohydrates CrossWord 2022-10-27

Carbohydrates CrossWord crossword puzzle
Across
  1. carbon double or triple bonds
  2. a type of fat
  3. a lipid containing a phosphate group
  4. compounds formed by esterfication
  5. a sticky deposit on teeth
  6. a waxy substance found in your blood
  7. particles made of protein and fats
  8. aliphatic chain
  9. a form of fatty acid
Down
  1. molecular hydrogen chemical reaction
  2. aerial oxidation of unsaturated fat
  3. point alloy changes from fully liquid to fully solid
  4. naturally occuring molecules
  5. composed of two fatty acid chains
  6. group functional group of a carbon atom
  7. several double or triple bonds
  8. reaction with oxygen at normal temperatures
  9. an organic compound; C17H28O
  10. Occur in living beings
  11. holding as much water or moisture

20 Clues: a type of fat • aliphatic chain • a form of fatty acid • Occur in living beings • a sticky deposit on teeth • naturally occuring molecules • an organic compound; C17H28O • carbon double or triple bonds • several double or triple bonds • composed of two fatty acid chains • compounds formed by esterfication • holding as much water or moisture • particles made of protein and fats • ...

Biology Crossword - Tommy Prince 2019-11-25

Biology Crossword - Tommy Prince crossword puzzle
Across
  1. O2.
  2. Flattened sacs in a chloroplast.
  3. A chemical composition for Ethanol.
  4. The third step in cellular respiration.
  5. H2O.
  6. Lactate.
  7. The action of breathing.
  8. Adenosine Triphosphate.
  9. Enzyme mediated reactions.
  10. Absence of oxygen.
  11. The breakdown of molecules by bacteria, yeast, etc.
Down
  1. A connective organelle in blood and tissue.
  2. Light independent reaction.
  3. The second step in cellular respiration.
  4. The breakdown of glucose by enzymes.
  5. A organelle used to produce energy and respiration.
  6. Uses light energy for photosynthesis.
  7. Requires oxygen.
  8. C6H12O6.
  9. CO2.
  10. The making of food through a process in plants.
  11. Where photosynthesis takes place.

22 Clues: O2. • H2O. • CO2. • Lactate. • C6H12O6. • Requires oxygen. • Absence of oxygen. • Adenosine Triphosphate. • The action of breathing. • Enzyme mediated reactions. • Light independent reaction. • Flattened sacs in a chloroplast. • Where photosynthesis takes place. • A chemical composition for Ethanol. • The breakdown of glucose by enzymes. • Uses light energy for photosynthesis. • ...

S.T.E.M. HAVOC 2025-04-12

S.T.E.M. HAVOC crossword puzzle
Across
  1. Name the technique
  2. Name the map
  3. Name the space
  4. Name the phenomenon
  5. Name the system
  6. Name it
  7. Name the experiment
  8. Name the activity
  9. Name the type of neural condition
  10. Name the signalling protein
  11. Name the state
  12. A complex polynomial
  13. A chaotic map
  14. Name the set of analysis technique
  15. Name the noise
Down
  1. Name the family
  2. An important chemical
  3. Name the icon
  4. Name the disorder type
  5. Name the reaction
  6. Name the object
  7. Name the concept
  8. Name the organisation
  9. Name the book
  10. Name the general reaction
  11. Former name of the protein
  12. Name the thing
  13. Name the operator
  14. Name the design

29 Clues: Name it • Name the map • Name the icon • Name the book • A chaotic map • Name the space • Name the state • Name the thing • Name the noise • Name the family • Name the object • Name the system • Name the design • Name the concept • Name the reaction • Name the activity • Name the operator • Name the technique • Name the phenomenon • Name the experiment • A complex polynomial • An important chemical • ...

6 2025-11-24

6 crossword puzzle
Across
  1. Repeating pattern in table
  2. Having high pH
  3. Process of chemical change
  4. Compound with oxygen
  5. Shows reactants and products
  6. Having low pH
  7. Compound with NO₃ group
  8. Represents an element
  9. Represents a compound
  10. Alloy of copper and zinc
  11. Make neither acidic nor basic
  12. Product of acid-base reaction
Down
  1. Can be hammered into sheets
  2. Compound with OH group
  3. Can be drawn into wires
  4. Characteristic of matter
  5. Compound with CO₃ group
  6. Transfers heat or electricity
  7. Resists electricity or heat
  8. Group of inert gases
  9. Established scientific rule
  10. Compound with sulfur
  11. Alloy of copper and tin
  12. Alloy of iron and carbon
  13. Mixture of metals

25 Clues: Having low pH • Having high pH • Mixture of metals • Compound with oxygen • Group of inert gases • Compound with sulfur • Represents an element • Represents a compound • Compound with OH group • Can be drawn into wires • Compound with CO₃ group • Compound with NO₃ group • Alloy of copper and tin • Characteristic of matter • Alloy of copper and zinc • Alloy of iron and carbon • ...

SoundWaves Unit 20 Year 5 2019-08-29

SoundWaves Unit 20 Year 5 crossword puzzle
Across
  1. to be startled
  2. a location
  3. to be considerate, helpful
  4. to combine
  5. to apply
  6. to practice
  7. a goal
  8. rude
  9. to help
  10. to share
  11. to understand
  12. to avoid
Down
  1. contains literature
  2. income
  3. to quit
  4. a void
  5. an app, or a process
  6. destroy
  7. manners
  8. to be still
  9. an individual in care
  10. a chemical reaction

22 Clues: rude • income • a void • a goal • to quit • destroy • manners • to help • to apply • to share • to avoid • a location • to combine • to practice • to be still • to understand • to be startled • contains literature • a chemical reaction • an app, or a process • an individual in care • to be considerate, helpful

Jordan Smith 2022-03-08

Jordan Smith crossword puzzle
Across
  1. study of ratios within a chemical reaction
  2. the maximum amount of product that can be produced based on the limiting reactant
  3. base unit of amount of a substance
  4. allows you to convert from one substance to another
  5. number of units in one mole of any substance
  6. is to compare two things
  7. multiple of an emperical formula
Down
  1. substance that will be used up in a chemical reaction
  2. is to compare three or more things
  3. mass of one mole of a substance
  4. the lowest whole number ratio within a compound of elements

11 Clues: is to compare two things • mass of one mole of a substance • multiple of an emperical formula • is to compare three or more things • base unit of amount of a substance • study of ratios within a chemical reaction • number of units in one mole of any substance • allows you to convert from one substance to another • substance that will be used up in a chemical reaction • ...

Chapter 2 2025-02-05

Chapter 2 crossword puzzle
Across
  1. the color that symbolizes good AQI (air quality index)
  2. The systematic name of the compound for water
  3. in a chemical reaction, these appears after the arrow
  4. V in VOCs
  5. the systematic name of the compound CCl4 (write the name without space)
Down
  1. phase change from gas to liquid
  2. the pollutant composed of oxygen
  3. the lowest region of the atmosphere where we live
  4. a chemical reaction where oxygen is reacted with other materials releasing a large amount of energy
  5. added to increase kinetic energy or molecular movements
  6. NOx and SOx are _____________ pollutants

11 Clues: V in VOCs • phase change from gas to liquid • the pollutant composed of oxygen • NOx and SOx are _____________ pollutants • The systematic name of the compound for water • the lowest region of the atmosphere where we live • in a chemical reaction, these appears after the arrow • the color that symbolizes good AQI (air quality index) • ...

Chapter 2 crossword puzzle - Kivrin Haines 2018-10-11

Chapter 2 crossword puzzle - Kivrin Haines crossword puzzle
Across
  1. A pure substance made of only one kind of atom.
  2. A class of organic compounds that serve as the building blocks of proteins.
  3. A measurement of the average speed of the particles within a substance.
  4. A substance that is present before a chemical re­ action and takes part in it, usually shown on the left­hand side of a chemical equation.
  5. A class of nonpolar organic compounds that are in­ soluble in water and are used for energy storage and cell membranes in living things.
  6. An organic compound comprised of the ele­ ments carbon, hydrogen, and oxygen; includes sugars, starch and cellulose.
  7. A change in a substance that does not change the identity of the substance (e.g., a change of form or state).
  8. The tendency of energy to disperse and become less available to do work.
  9. The substances formed during a chemical reaction, usually indicated on the right­hand side of a chemical equation.
  10. The attraction between like particles within polar substances
Down
  1. The attraction of particles in one substance for particles in a different substance.
  2. A naturally occurring catalyst, usually a protein.
  3. An attraction between two atoms as a result of shar­ ing or transferring valence electrons.
  4. A change in a substance that results in one or more new substances being formed that have dif­ ferent physical and chemical properties than those of the original substance.
  5. A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA.
  6. A substance that changes the rate of a chemical re­ action but is not itself used up or affected by the reaction.
  7. A pure substance made from two or more ele­ ments that are chemically combined.
  8. A class of simple organic compounds important in living things as a source of both energy and structure.
  9. The building block of matter; the smallest possible particle of an element.
  10. The ability to do work. Especially in biology, the driver of the physical and chemical processes necessary for life.

20 Clues: A pure substance made of only one kind of atom. • A naturally occurring catalyst, usually a protein. • The attraction between like particles within polar substances • A measurement of the average speed of the particles within a substance. • The tendency of energy to disperse and become less available to do work. • ...

Vocabulary Words and Definitions 2023-09-26

Vocabulary Words and Definitions crossword puzzle
Across
  1. A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
  2. The amount of space that a substance or object occupies.
  3. Water which collects as droplets on a cold surface when humid air is in contact with it.
  4. The degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
  5. A body's relative mass or the quantity of matter contained by it, giving rise to a downward force; the heaviness of a person or thing.
  6. The basic unit of a chemical element.
  7. A substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape.
  8. The SI unit of mass (equivalent to approximately 2.205 lb), first introduced as a unit of mass for the metric system.
  9. Continuous physical force exerted on or against an object by something in contact with it.
  10. A particular kind of matter with uniform properties.
  11. Firm and stable in shape; not liquid or fluid.
Down
  1. The degree of compactness of a substance.
  2. A tabular array of the chemical elements organized by atomic number.
  3. Anything that takes up space and can be weighed.
  4. A characteristic of matter that can only be observed and measured by performing a chemical reaction or chemical change.
  5. A substance that cannot be broken down into simpler substances by chemical means.
  6. The branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.
  7. A substance that flows freely but is of constant volume.
  8. The measure of the amount of matter in a body.
  9. A characteristic of a substance that can be observed or measured without changing the identity of the substance.

20 Clues: The basic unit of a chemical element. • The degree of compactness of a substance. • The measure of the amount of matter in a body. • Firm and stable in shape; not liquid or fluid. • Anything that takes up space and can be weighed. • A particular kind of matter with uniform properties. • The amount of space that a substance or object occupies. • ...

Chemistry 2024-12-05

Chemistry crossword puzzle
Across
  1. Substances made up of only one type of atom or molecule
  2. The amount of matter in an object
  3. A theory that explains the behavior of matter in terms of the motion of its particles
  4. Properties that can be measured (e.g., mass, volume, temperature)
  5. The smallest unit of an element that maintains the properties of that element
  6. Changes that alter the chemical composition of a substance
  7. The process of a substance changing directly from a solid to a gas
  8. A well-tested explanation for a set of observations or phenomena
  9. A negatively charged subatomic particle
  10. Properties that describe how a substance reacts with other substances
  11. A pure substance made up of two or more different types of atoms chemically combined
  12. The central part of an atom, containing protons and neutrons
  13. particle A particle smaller than an atom (e.g., electron, proton, neutron)
Down
  1. Properties that describe the quality of a substance (e.g., color, odor, texture)
  2. Changes that alter the form of a substance but not its chemical composition
  3. The principle that mass cannot be created or destroyed in a chemical reaction
  4. A state of matter with no definite shape or volume
  5. Properties that can be observed or measured without changing the substance’s chemical identity
  6. A pure substance made up of only one type of atom
  7. The process of a liquid changing to a gas
  8. The amount of mass in a given volume of a substance
  9. The amount of space an object occupies
  10. The process of a gas changing to a liquid
  11. A positively charged subatomic particle
  12. A state of matter with a definite shape and volume
  13. Substances that undergo a chemical change
  14. The process of a substance changing directly from a gas to a solid
  15. Anything that has mass and takes up space
  16. A simplified representation of a real-world system
  17. A state of matter with a definite volume but no definite shape
  18. A neutral subatomic particle
  19. Substances formed as a result of a chemical reaction

32 Clues: A neutral subatomic particle • The amount of matter in an object • The amount of space an object occupies • A positively charged subatomic particle • A negatively charged subatomic particle • The process of a liquid changing to a gas • The process of a gas changing to a liquid • Substances that undergo a chemical change • Anything that has mass and takes up space • ...

Chapter Three Crossword 2019-03-30

Chapter Three Crossword crossword puzzle
Across
  1. An enzyme's active site has a very specific shape that allows a specific molecule to fit.
  2. The inhibitor binds to the enzyme's active site.
  3. The inhibitor does not permanently stop the enzyme from functioning.
  4. What is left after the enzyme and substrate bind.
  5. The substance on which the enzyme acts.
  6. Protein molecules that act as biological catalysts.
  7. Operating outside the cell.
Down
  1. Operating within the cell.
  2. A region on an enzyme that binds to a protein or substrate.
  3. A measure of acidity in a substance.
  4. The intermediate formed when a substrate interacts with the active site of an enzyme.
  5. The minimum energy required to allow a chemical reaction.
  6. To alter the structure a protein by breaking the bonds.
  7. A substance which prevents an enzyme from functioning in a normal manner.
  8. To prevent an enzyme from functioning in a normal manner.
  9. A process that uses the conditions of one component to regulate the activity of another.
  10. The reaction product inhibits the enzyme's activity.
  11. An enzyme that is attached to a inert, insoluble subtance.
  12. The maximum rate of reaction when the enzyme is saturated with substrate.
  13. The number of chemical conversations of the substrate molecules per second at a catalytic site.

20 Clues: Operating within the cell. • Operating outside the cell. • A measure of acidity in a substance. • The substance on which the enzyme acts. • The inhibitor binds to the enzyme's active site. • What is left after the enzyme and substrate bind. • Protein molecules that act as biological catalysts. • The reaction product inhibits the enzyme's activity. • ...

Chemistry Crossword 2017-11-09

Chemistry Crossword crossword puzzle
Across
  1. a substance that reacts with another substance to make a product
  2. most stable elements on the periodic table
  3. chemical combination of two or more elements
  4. the centre of an atom
  5. colourless, odorless gas which is very deadly
  6. the most reactive metals on the periodic table
  7. the amount of mass in a given volume of a substance
  8. a reaction that takes place when 2 different materials combine to make a new one
  9. the slow reaction that requires oxygen
  10. an atom electrically charged because it has lost or gained electrons
  11. anything that has mass and occupies space
Down
  1. description of an item that can be rolled into thin sheets
  2. a chemical reaction that is sudden and requires oxygen
  3. an irreversible change that creates a new substance
  4. a new substance created when 2 or more reactants react
  5. dull, brittle element that doesn't conduct electricity
  6. the mass of one atom of an element
  7. the most reactive non-metals on the periodic table
  8. the ability for an element to be turned into a wire
  9. the building blocks once called "atomos"
  10. number of protons and electrons in an atom
  11. symbols that represent a compound
  12. element with both metallic and non-metal properties
  13. a neutral particle in a nucleus
  14. a cloudy mixture which cannot be easily separated

25 Clues: the centre of an atom • a neutral particle in a nucleus • symbols that represent a compound • the mass of one atom of an element • the slow reaction that requires oxygen • the building blocks once called "atomos" • anything that has mass and occupies space • most stable elements on the periodic table • number of protons and electrons in an atom • ...

damm 2022-08-24

damm crossword puzzle
Across
  1. the time value of money has been integrated into investment evaluation system by means of......
  2. the chemical engineer must never lose sight of the practical limitations involved in a.....
  3. ..... location is final geographic location of industry.
  4. the minimum concentration of fuel in air required for ignition at ambient temp. is known as the .....
  5. generation of solution structure corresponding to the combinatorially feasible reaction networks as the solution structure with algorithm.....
  6. most separation process results in ...... product streams
  7. it is a small scale replica of final plant.
  8. Fault tree analysis is also called .....
  9. generation of the maximal structure corresponding to the maximal reaction network with Algorithm.......
  10. one measure of profitability is often used is the...
  11. a measure of the ability of a waste component to consume the oxygen desolved in water is known as .....
Down
  1. the last general design task is to establish correct ...... and piping layouts.
  2. steam and ..... requirements are higher in plant
  3. In ..... chemical reaction propagates at supersonic velocity
  4. a qualitative flow ....... is important for a plant design
  5. the hazard and operability study is known as......
  6. the principal function of most ...... audits in the past has been to verify the adequancy of safety equipment and rules.
  7. the characteristic of proposed land is known as ...... characteristic
  8. avoidance of potential ...... is important
  9. In Hazop study quantitave decrease is called as a word .....

20 Clues: Fault tree analysis is also called ..... • avoidance of potential ...... is important • it is a small scale replica of final plant. • steam and ..... requirements are higher in plant • the hazard and operability study is known as...... • one measure of profitability is often used is the... • ..... location is final geographic location of industry. • ...

Unit 1 Matter Crossword Review 2014-09-08

Unit 1 Matter Crossword Review crossword puzzle
Across
  1. A homogenous material consisting of one particular kind of matter.
  2. A substance which can not be broken down by chemical means.
  3. Matter that has similar properties throughout.
  4. A reaction in which energy must be supplied.
  5. Two or more materials which do NOT chemically combine.
  6. A _____________ property depends on the amount of material.
  7. A ____________ property depends on observations.
  8. A _________ change affects the appearance of matter.
Down
  1. A homogenous mixture containing a solute mixed uniformly throughout,
  2. A reaction in which energy is given off.
  3. Two or more elements which are chemically combined in a fixed ratio.
  4. The chemical _________ can be used in place of the name of the element.
  5. Matter that has different properties.

13 Clues: Matter that has different properties. • A reaction in which energy is given off. • A reaction in which energy must be supplied. • Matter that has similar properties throughout. • A ____________ property depends on observations. • A _________ change affects the appearance of matter. • Two or more materials which do NOT chemically combine. • ...

chemical reactions 2017-05-30

chemical reactions crossword puzzle
Across
  1. Smaller reactants have greater_______________,making it easier for them to react
  2. Two or more simple substances combine to form a more complex product
  3. A single compound breaks down into two or more elements or new compounds
  4. Products are always carbon dioxide and water
  5. lead(II) nitrate and potassium iodide to form potassium nitrate and lead iodide
Down
  1. Higher_______________provide more energy for the systems in which reactants react
  2. For the following chemical reaction: zinc + iron sulfate ---> zinc sulfate + iron, the products are___________
  3. __________ is always a reactant in a combustion reaction
  4. magnesium + zinc sulfate magnesium sulfate + zinc
  5. For following chemical reaction: calcium + bromine ---> calcium bromide, the reactants are_______________

10 Clues: Products are always carbon dioxide and water • magnesium + zinc sulfate magnesium sulfate + zinc • __________ is always a reactant in a combustion reaction • Two or more simple substances combine to form a more complex product • A single compound breaks down into two or more elements or new compounds • ...

Enzymes 2024-04-09

Enzymes crossword puzzle
Across
  1. At higher substrate concentrations, increasing the amount of substrate cannot increase the rate of reaction as active sites of enzyme molecules are _________.
  2. enzymes are biological catalysts that speed up the rate of chemical reactions by lowering the __________ ______ of a chemical reaction, without being chemically altered in the reaction
  3. As temperature increases beyond optimum temperature, enzyme is _________. The enzyme loses its 3D shape and active site is unable to bind to the substrate. Rate of reaction thus decreases.
  4. the shape of the substrate is _____________ to the shape of the active site of the enzyme
  5. Reaction rate is its maximum at enzyme _______ temperature/pH.
  6. the part of an enzyme has a specific shape into which the substrate(s) fit exactly
  7. the substrate binds to the active site of the enzyme, forming an ______-_________ _______
Down
  1. enzymes are required in _____ _______ because they remain chemically unchanged in the reactions they catalyse and can be reused
  2. in the ‘____ ___ ___’ hypothesis, the substrate is the “key”, while the enzyme is the “lock”
  3. Denaturation is ____________ even when temperature is lowered. At extremely high temperatures, the enzyme is completely denatured and the rate of reaction drops to zero.
  4. As temperature increases, enzyme and substrate gain _______ ______ and they collide more often, increasing the formation of enzyme substrate complex thus increase rate of reaction. Rate of reaction doubles with every 10°C rise in temperature.
  5. At low temperatures, enzymes are ________ and the rate of reaction is low. Substrate and enzyme molecules have little kinetic energy, hence the frequency of collision is low. In addition, most substrate molecules do not contain sufficient energy to overcome the activation energy required to start a reaction.

12 Clues: Reaction rate is its maximum at enzyme _______ temperature/pH. • the part of an enzyme has a specific shape into which the substrate(s) fit exactly • the shape of the substrate is _____________ to the shape of the active site of the enzyme • the substrate binds to the active site of the enzyme, forming an ______-_________ _______ • ...

Chapter 13 - Anastasia Baker 2017-02-15

Chapter 13 - Anastasia Baker crossword puzzle
Across
  1. - A polyatomic ion made by removing a proton from a water molecule.
  2. - The deterioration of a metal, typically caused by atmospheric oxygen.
  3. -
  4. - The minimum energy required in order for a chemical reaction to proceed.
Down
  1. - The process by which a reactant gains one or more electron.
  2. - A rapid exothermic oxidation-reduction reaction between a material and molecular oxygen.
  3. - Matter is neither created nor destroyed during a chemical reaction.
  4. - A measure of the acidity of a solution
  5. - The amount of energy required to pull two bonded atoms apart, which is the same as the amount of energy released when the two atoms are brought together into a bond.
  6. - The process by which a reactant loses one or more electron.
  7. - A substance that donates hydrogen ions.

11 Clues: - • - A measure of the acidity of a solution • - A substance that donates hydrogen ions. • - The process by which a reactant gains one or more electron. • - The process by which a reactant loses one or more electron. • - A polyatomic ion made by removing a proton from a water molecule. • - Matter is neither created nor destroyed during a chemical reaction. • ...

Cheimcal reactions cross word 2025-01-26

Cheimcal reactions cross word crossword puzzle
Across
  1. formed by a chemical change or reaction
  2. starting material in a reaction that undergo change in chemical to make an new product
  3. replaces 1 element in a compound
  4. when2 2 or more reactants or substances combine to make a new product
Down
  1. when 2 or more compounds combine to form 1 compound
  2. a substance that releases a large amount of energy when reacted with oxygen
  3. when a compound breaks down into 2 simpler substances
  4. when an element displaces or pushes away and element that isn't as reactive
  5. 2 inonic compounds exchange making 2 new ones
  6. when 2 or more reactants convert into 1 or more different products
  7. 2 or more elements or compounds combine to make a more complex element or compound

11 Clues: replaces 1 element in a compound • formed by a chemical change or reaction • 2 inonic compounds exchange making 2 new ones • when 2 or more compounds combine to form 1 compound • when a compound breaks down into 2 simpler substances • when 2 or more reactants convert into 1 or more different products • ...

Module 2: Thermodynamics Crossword 2024-06-26

Module 2: Thermodynamics Crossword crossword puzzle
Across
  1. The exothermic reaction of a substance with oxygen to produce heat, carbon dioxide, and water.
  2. The relationship between Gibbs free energy and equilibrium is a fundamental concept in __________.
  3. A gas spontaneously __________ to fill a volume, demonstrating increased entropy.
  4. A measure of the disorder or randomness in a system. It's denoted by S, indicating the number of ways a system can be arranged.
  5. An __________ process cannot return to its initial state without a net energy input.
  6. Describes reactions that release heat to the surroundings.
  7. __________'s Law states that the total enthalpy change of a reaction is the sum of the enthalpy changes for each step of the reaction.
  8. Indicates a favorable Gibbs free energy change.
  9. In thermodynamic calculations, these are the starting substances in a chemical reaction, whose enthalpies are subtracted from those of the products.
  10. __________ free energy determines reaction spontaneity and is denoted as G.
  11. A method used to measure the heat absorbed or released in a chemical reaction, physical change, or heat capacity.
  12. In thermodynamics, a __________ is the part of the universe being studied, separated by boundaries from the surroundings.
  13. In Hess's Law, the enthalpy change is calculated as the sum of enthalpies of the __________ minus the sum of enthalpies of the reactants.
  14. A measure of the average kinetic energy of the particles in a system.
  15. A property indicating whether a process will occur without external energy input, often determined by a negative Gibbs Free Energy.
  16. The entropy change when a solid melts to a liquid is known as the entropy of __________.
Down
  1. The system's __________ exchange heat and matter with the system during thermodynamic processes.
  2. The change in enthalpy when one mole of a compound is formed from its elements in their standard states.
  3. The force exerted by a substance per unit area on another substance or on the walls of its container.
  4. An __________ reaction absorbs heat, leading to a positive ΔH.
  5. The law of thermodynamics that states entropy of an isolated system increases in a spontaneous process is the __________ Law of Thermodynamics.
  6. For a spontaneous change, the entropy of an __________ system increases.
  7. A thermodynamic quantity equivalent to the total heat content of a system. It's represented by H and is used to measure the heat change in chemical reactions at constant pressure.
  8. Internal energy from combustion can be released as heat or used to do __________, such as in internal combustion engines.
  9. In an __________ process, there is no heat exchange with the surroundings.
  10. Often used to describe the degree of randomness or dispersion of energy in a system.
  11. The energy transferred between systems or surroundings due to a temperature difference.
  12. The entropy change for a process is calculated using the __________ path of heat transfer.
  13. A high-temperature exothermic reaction between a fuel and an oxidant, typically oxygen, resulting in the formation of oxidized products and the release of heat.
  14. ____________ occurs from a hot object to a cold object spontaneously.

30 Clues: Indicates a favorable Gibbs free energy change. • Describes reactions that release heat to the surroundings. • An __________ reaction absorbs heat, leading to a positive ΔH. • ____________ occurs from a hot object to a cold object spontaneously. • A measure of the average kinetic energy of the particles in a system. • ...

Chemistry 2023-02-08

Chemistry crossword puzzle
Across
  1. the final results of a reaction
  2. starting materials of a reaction.
  3. the liquid in which a solid substance dissolves.
  4. the symbol for the element sodium
  5. the chemical name for lime water
  6. the solid substance formed by mixing two soluble liquids.
  7. change from liquid to solid
  8. changes in which new substances are formed.
  9. mixture of solute and solvent
  10. a substance that dissolves in a liquid
Down
  1. the element with the symbol K
  2. one of the gases formed on burning candle
  3. reaction in which solid substances are formed while two soluble liquids are mixed.
  4. basic unit of matter
  5. change change of states is an example of this type of change.
  6. change from solid to gas
  7. the paper used in the identification test for water

17 Clues: basic unit of matter • change from solid to gas • change from liquid to solid • the element with the symbol K • mixture of solute and solvent • the final results of a reaction • the chemical name for lime water • starting materials of a reaction. • the symbol for the element sodium • a substance that dissolves in a liquid • one of the gases formed on burning candle • ...

Equilibria 2016-08-04

Equilibria crossword puzzle
Across
  1. its effect of the position of equilibrium is dependent upon the number of moles of gas
  2. used for the reactants and products when a chemical reaction involves just gases
  3. _________ equilibrium occurs when the rate of the forward reaction and backwards reaction are equal
  4. total pressure of a system is equal to the sum of the ________ pressures of each of the gases
  5. altering this quantity will change the Kc value for a particular reaction
Down
  1. an equilibrium reaction involving reactants and products which are in the same phase
  2. a principle which concerns the effect of changing conditions on the position of equilibrium
  3. decreasing temperature decreases yield in an __________ reaction
  4. Kc is the ___________ constant
  5. Reactants or products are unable to enter or leave
  6. how position of equilibrium is changed by the addition of a catalyst
  7. [ ] represents the equilibrium concentration in ___ dm-3
  8. A reactant or product which has a (g) in a symbol equation

13 Clues: Kc is the ___________ constant • Reactants or products are unable to enter or leave • [ ] represents the equilibrium concentration in ___ dm-3 • A reactant or product which has a (g) in a symbol equation • decreasing temperature decreases yield in an __________ reaction • how position of equilibrium is changed by the addition of a catalyst • ...

Atoms, Elements and Compounds 2021-03-02

Atoms, Elements and Compounds crossword puzzle
Across
  1. building blocks of matter
  2. a strong force of attraction holding atoms together in a molecule or crystal, resulting from the sharing or transfer of electrons
  3. anything that has mass and takes up space
  4. a sample of matter with both definite and constant composition and distinct chemical properties
  5. a pure substance that cannot be broken down into any other substance
Down
  1. formula a set of chemical symbols showing the elements present in a compound and their relative proportions, and in some cases the structure of the compound
  2. a combination of many different elements, but they are not chemically combined and can be separated physically
  3. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
  4. divide or cause to divide into distinct elements
  5. more than one element has been combined through a chemical reaction to form a new substance

10 Clues: building blocks of matter • anything that has mass and takes up space • divide or cause to divide into distinct elements • a pure substance that cannot be broken down into any other substance • more than one element has been combined through a chemical reaction to form a new substance • ...

Science: Matter and Chemical Change 2014-11-10

Science: Matter and Chemical Change crossword puzzle
Across
  1. the rows in the Periodic Table of Elements
  2. the 18 columns on the Periodic Table of Elements
  3. ______ systems is an experiment in which reactants and products can not escape
  4. neutral particles
  5. occurs when oxygen reacts to another substance to form a new substance and releases energy
  6. occurs when oxygen reacts with metal, a chemical reaction in which the metal is decomposed
  7. an atom or group of atoms that become electrically charges because it has lost or gained electrons
  8. compound formed when 2 non-metals combine
  9. Workplace Hazardous Material Information System
  10. substance that strongly resists the flow of electricity
  11. the mass of one of an element
  12. most reactive of the metals
  13. published by Andreas Libau in 1597, it describes the achievements of alchemists
  14. substances that helps reaction proceed faster
  15. a pure substance that cannot be broken down into other substances
Down
  1. represents the number of atoms
  2. has the element symbol Br
  3. positively charged particles
  4. the Law of ________ of Mass
  5. experimented with the behaviour of gases
  6. characteristics that can be used to describe a substance
  7. stated each type of material was made up of a different type of atomos
  8. a chemical reaction that takes place in the cells of your body
  9. Father of Modern Chemistry
  10. supported the idea that everything was made up of the 4 elements
  11. organic catalysts

26 Clues: neutral particles • organic catalysts • has the element symbol Br • Father of Modern Chemistry • the Law of ________ of Mass • most reactive of the metals • positively charged particles • the mass of one of an element • represents the number of atoms • experimented with the behaviour of gases • compound formed when 2 non-metals combine • the rows in the Periodic Table of Elements • ...

Chemistry Study Guide 2016-02-10

Chemistry Study Guide crossword puzzle
Across
  1. the outcome of the chemical reaction
  2. a reaction that occurs when a layer of metal is bonded to another substance, usually metal
  3. have completely full orbitals
  4. when energy is absorbed
  5. rows on the periodic table
  6. the combination of 2 or more different atoms
  7. when energy is released in the form of heat
  8. the dense and positively charged center of an atom
  9. the total amount of mass stays the same through a chemical reaction
  10. can conduct heat and electricity, most are solid
  11. the negatively charged particles that orbit the nucleus
  12. the smallest part of a substance, can't be broken down further
Down
  1. mix of both metals and non-metals attributes
  2. columns on the periodic table
  3. the electrons in the outermost orbital
  4. the number of protons or electrons an atom has
  5. the positively charged particles in the nucleus of an atom
  6. the two letter abbreviation of the element name
  7. combination of one or more atoms of any kind
  8. the smallest an element or any matter can be broken down to
  9. created the periodic table of elements
  10. the sum of the atomic number and the number of neutrons
  11. regions of space outside the nucleus of an atom where electrons are found
  12. can easily be broken, can't conduct heat or electricity well
  13. the starting substances
  14. the particles in the nucleus with no charge

26 Clues: when energy is absorbed • the starting substances • rows on the periodic table • columns on the periodic table • have completely full orbitals • the outcome of the chemical reaction • the electrons in the outermost orbital • created the periodic table of elements • when energy is released in the form of heat • the particles in the nucleus with no charge • ...

Chapter Three Crossword 2019-03-30

Chapter Three Crossword crossword puzzle
Across
  1. The substance on which the enzyme acts.
  2. The inhibitor binds to the enzyme's active site.
  3. The reaction product inhibits the enzyme's activity.
  4. The inhibitor does not permanently stop the enzyme from functioning.
  5. The maximum rate of reaction when the enzyme is saturated with substrate.
  6. To alter the structure a protein by breaking the bonds.
  7. The intermediate formed when a substrate interacts with the active site of an enzyme.
  8. The minimum energy required to allow a chemical reaction.
Down
  1. A process that uses the conditions of one component to regulate the activity of another.
  2. An enzyme's active site has a very specific shape that allows a specific molecule to fit.
  3. A measure of acidity in a substance.
  4. Operating within the cell.
  5. An enzyme that is attached to a inert, insoluble subtance.
  6. What is left after the enzyme and substrate bind.
  7. The number of chemical conversations of the substrate molecules per second at a catalytic site.
  8. To prevent an enzyme from functioning in a normal manner.
  9. Protein molecules that act as biological catalysts.
  10. A region on an enzyme that binds to a protein or substrate.
  11. Operating outside the cell.
  12. A substance which prevents an enzyme from functioning in a normal manner.

20 Clues: Operating within the cell. • Operating outside the cell. • A measure of acidity in a substance. • The substance on which the enzyme acts. • The inhibitor binds to the enzyme's active site. • What is left after the enzyme and substrate bind. • Protein molecules that act as biological catalysts. • The reaction product inhibits the enzyme's activity. • ...

Nuclear Crossword 2023-10-16

Nuclear Crossword crossword puzzle
Across
  1. Japanese city where the first atomic bomb was dropped
  2. charged atoms
  3. Decay, the emission of energy in the form of ionizing radiation
  4. smallest part of an element that retain the properties of that element
  5. any of the chemical elements that lie beyond uranium in the periodic table
  6. Decay, nothing to the mass and adds 1 to the number of protons
  7. Reaction, a series of chemical reactions where the products of the reaction contribute to the reactants of another reaction
  8. energy that comes from a source and travels through space at the speed of light
  9. Boy, first atomic weapon
Down
  1. 2 or more things combining
  2. Number, number of protons
  3. release of energy from the decay of the nuclei and other kinds of atoms and isotopes
  4. Life, amount of time it takes for one half of the radioactive isotopes to decay
  5. Decay, subtracts 4 to the mass and 2 to the number of protons
  6. Decay, nothing to the mass and number of protons
  7. dividing or splitting something into 2 or more parts
  8. Curie, discovered the elements polonium and radium
  9. a variation of an element that possesses the same atomic number but a different mass number
  10. Number, number of protons plus number of neutrons
  11. Japanese city where the second atomic bomb was dropped
  12. Electrons, outmost electrons
  13. Man, implosion type nuclear weapon with a solid plutonium core

22 Clues: charged atoms • Boy, first atomic weapon • Number, number of protons • 2 or more things combining • Electrons, outmost electrons • Decay, nothing to the mass and number of protons • Number, number of protons plus number of neutrons • Curie, discovered the elements polonium and radium • dividing or splitting something into 2 or more parts • ...

Catalysis and surface chemistry 2025-11-03

Catalysis and surface chemistry crossword puzzle
Across
  1. The common surface between the two phases where the adsorbed molecules concentrate is called the ......
  2. The catalyst is ....... chemically at the end of the reaction.
  3. releasing heat as surface energy decreases (∆H is negative).
  4. The juice extracted from the cane is treated with animal charcoal for the ----- of the coloring agent.
  5. poisonous gases get ---- at the surface of the coal.
  6. ----- Weak, van der Waals forces hold molecules to the surface.
  7. The accumulation of molecules on a surface.
  8. substances upon whose surface the change of concentration occurs is called .....
  9. It means constant temperature.
  10. retards the rate of a chemical reaction.
Down
  1. ...... the catalyst is present in the same phase as the reactants.
  2. --- by which molecules or atoms are released from a solid surface into a gas or liquid phase.
  3. Does adsorption increase with temperature?
  4. ........ Manufacture of ammonia using iron as a catalyst.
  5. Adsorption ------- with pressure, reaches a maximum, and becomes constant.
  6. ----- is a substance that changes the speed of a reaction.
  7. Chemistry is the study of the chemical phenomena that occur at the surface.
  8. -----is a bulk phenomenon, while adsorption is a surface phenomenon.
  9. The two primary methods used for predicting the adsorption capacity of a given material are known as the ------and Langmuir isotherms.
  10. ------cannot be reversed and occurs at high temperatures initially; specific in nature.

20 Clues: It means constant temperature. • retards the rate of a chemical reaction. • Does adsorption increase with temperature? • The accumulation of molecules on a surface. • poisonous gases get ---- at the surface of the coal. • ........ Manufacture of ammonia using iron as a catalyst. • ----- is a substance that changes the speed of a reaction. • ...

Quiz on Photosynthesis 2023-03-03

Quiz on Photosynthesis crossword puzzle
Across
  1. Green pigment that absorbs sunlight.
  2. Lets gases in or out of the plant.
  3. Chemical reaction that plants use to make food.
  4. Organisms do this process to produce glucose for energy.
  5. The substance/chemical needed to create a reaction.
Down
  1. Carries glucose to the plant.
  2. The outcome or new substance that was made by reactants.
  3. When reactants have combined or reacted and created a new product/substance.
  4. Distributes water throughout the plant.
  5. Organelle that contains chlorophyll.

10 Clues: Carries glucose to the plant. • Lets gases in or out of the plant. • Green pigment that absorbs sunlight. • Organelle that contains chlorophyll. • Distributes water throughout the plant. • Chemical reaction that plants use to make food. • The substance/chemical needed to create a reaction. • The outcome or new substance that was made by reactants. • ...

kemmy 2.1 vocad 2021-10-26

kemmy 2.1 vocad crossword puzzle
Across
  1. chemical composition
  2. space
  3. arrows
  4. substance presents
Down
  1. heat energy
  2. chemical reaction
  3. chemical change

7 Clues: space • arrows • heat energy • chemical change • chemical reaction • substance presents • chemical composition

chemistry 2019-06-23

chemistry crossword puzzle
Across
  1. negatively charged particle in an atom
  2. code of one or two letters that represent an element
  3. an electron in the outer shell of an atom
  4. set of chemical symbols that represent a compound
  5. a chemical bond in which electrons are shared
  6. the number of protons in an atom
  7. change in form of matter that does not result in a new substance being produced
  8. positively charged particle in an atom
  9. a chemical bond in which electrons are transferred from one atom to another
  10. small, dense region of an atom made up of protons and neutrons
  11. a pure substance of one type of atom
Down
  1. matter that is composed of two or more separate elements
  2. the basic building block of matter
  3. a change in which chemical bonds are broken or formed resulting in a new substance being produced
  4. process in which one or more substances are changed into one or more different substances
  5. the number of protons plus neutrons in an atom
  6. the subatomic particle with no net charge
  7. the smallest unit of a chemical compound that can take part in a chemical reaction

18 Clues: the number of protons in an atom • the basic building block of matter • a pure substance of one type of atom • negatively charged particle in an atom • positively charged particle in an atom • an electron in the outer shell of an atom • the subatomic particle with no net charge • a chemical bond in which electrons are shared • ...

Cell Energy Crossword Puzzle 2021-03-09

Cell Energy Crossword Puzzle crossword puzzle
Across
  1. "cellular ___"; releases chemical energy from glucose and repackages it into ATP
  2. chemical reaction that turns light energy into chemical energy
  3. organelle where photosynthesis happens
  4. required to accomplish tasks
Down
  1. how cells get ATP without oxygen
  2. organelle where cellular respiration happens
  3. requirements for photosynthesis: light, carbon dioxide, and ___
  4. chemical energy is stored in this molecule
  5. contains smaller amounts of chemical energy than glucose
  6. required gas for cellular respiration

10 Clues: required to accomplish tasks • how cells get ATP without oxygen • required gas for cellular respiration • organelle where photosynthesis happens • chemical energy is stored in this molecule • organelle where cellular respiration happens • contains smaller amounts of chemical energy than glucose • chemical reaction that turns light energy into chemical energy • ...

Test Vocab Review #1 2016-03-10

Test Vocab Review #1 crossword puzzle
Across
  1. Longest wavelength of visible light.
  2. Shortest wavelength of visible light.
  3. SO32-.
  4. Electrons are equally shared in this kind of covalent bond.
  5. This is the kind of spectrum we see when an atom emits specific wavelengths of light resulting in a spectrum with certain bands of color and many gaps.
  6. A positively charge ion.
  7. Can be represented using chemical formula.
  8. HSO4-.
  9. Smallest major section/category of elements on the Periodic Table.
  10. Has the chemical properties of an element.
Down
  1. Listed on the periodic table.
  2. Have some/many of the properties of their constituent particles.
  3. Chemicals that come-out-of a chemical reaction.
  4. PO43-.
  5. One row on the Periodic Table.
  6. One column on the Periodic Table.
  7. Highest frequency light.
  8. Of the same kind.
  9. NH4+.

19 Clues: NH4+. • SO32-. • PO43-. • HSO4-. • Of the same kind. • Highest frequency light. • A positively charge ion. • Listed on the periodic table. • One row on the Periodic Table. • One column on the Periodic Table. • Longest wavelength of visible light. • Shortest wavelength of visible light. • Can be represented using chemical formula. • Has the chemical properties of an element. • ...

Biomolecules and Enzymes 2024-07-10

Biomolecules and Enzymes crossword puzzle
Across
  1. a test for the presence of reducing sugars
  2. enzymes that have been fixed to a surface or trapped inside beads of agar gel
  3. a relatively weak bond formed by the attraction between a group with a small positive charge on a hydrogen atom and another group carrying a small negative charge
  4. the main structural protein of animals; known as ‘white fibres’, the fundamental unit of the fibre consists of three helical polypeptide chains wound around each other, forming a ‘triple helix’ with high tensile strength
  5. test a test for the presence of amine groups and thus for the presence of protein
  6. a chemical bond, represented as –COO– , formed when an acid reacts with an alcohol
  7. a C–O–C link between two sugar molecules, formed by a condensation reaction; it is a covalent bond
  8. bond the covalent bond joining neighbouring amino acids together in proteins
  9. a hypothesis for enzyme action; the substrate is a complementary shape to the active site of the enzyme, but not an exact fit – the enzyme, or sometimes the substrate, can change shape slightly to ensure a perfect fit, but it is still described as showing specificity
  10. a sugar molecule consisting of two monosaccharides joined together by a glycosidic bond
  11. a protein produced by a living organism that acts as a biological catalyst in a chemical reaction by reducing activation energy
  12. simple molecule which is used as a basic building block for the synthesis of a polymer
  13. a polysaccharide made from beta- glucose subunits; used as a strengthening material in plant cell walls
Down
  1. a chemical reaction involving the joining together of two molecules by removal of a water molecule
  2. a protein whose molecules are folded into a relatively spherical shape, often has physiological roles and is often water-soluble and metabolically active
  3. a large molecule such as a polysaccharide, protein or nucleic acid
  4. a polysaccharide made of many glucose molecules linked together, that acts as a glucose store in liver and muscle cells
  5. when a substance reduces the rate of activity of an enzyme by competing with the substrate molecules for the enzyme’s active site
  6. a chemical reaction in which a chemical bond is broken by the addition of a water molecule
  7. structure the structure of a protein molecule resulting from the regular coiling or folding of the chain of amino acids (an α-helix or β-pleated sheet)
  8. a long chain of amino acids formed by condensation reactions between the individual amino acids
  9. a molecule consisting of a single sugar unit
  10. sheet a loose, sheet-like structure formed by hydrogen bonding between parallel polypeptide chains
  11. a type of lipid formed when three fatty acid molecules combine with glycerol
  12. the substrate concentration at which an enzyme works at half its maximum rate (1⁄2Vmax), used as a measure of the efficiency of an enzyme
  13. an area on an enzyme molecule where the substrate can bind
  14. the energy that must be provided to make a reaction take place
  15. a giant molecule made from many similar repeating subunits joined together in a chain

28 Clues: a test for the presence of reducing sugars • a molecule consisting of a single sugar unit • an area on an enzyme molecule where the substrate can bind • the energy that must be provided to make a reaction take place • a large molecule such as a polysaccharide, protein or nucleic acid • bond the covalent bond joining neighbouring amino acids together in proteins • ...

Heat Vocab Puzzle 2025-07-23

Heat Vocab Puzzle crossword puzzle
Across
  1. A branch of chemistry that studies the heat transfer associated with chemical reactions and physical changes of state
  2. A unit of energy which is equal to Newtons.
  3. The area around the substance that is absorbing or releasing the heat.
  4. A chemical reaction in which its products absorb energy.
  5. A measure of how much energy is needed to raise 1 gram of the substance by 1 degree celsius.
  6. A visual representation of energy in a chemical reaction. Reactants are shown on the left side and products are shown on the right.
  7. The ability of an object to transfer heat from one part of itself to another by conduction. This is a result of atomic or molecular motion.
Down
  1. A chemical reaction in which energy is released into the surroundings.
  2. A form of energy related to the motion of atoms and molecules. It can be transferred by conduction, convection, or radiation.
  3. The transfer and distribution of heat energy from atom to atom within a material, such as copper wire or a frying pan.
  4. The substance that is absorbing or releasing the heat.
  5. Electromagnetic waves that directly transport energy in all directions through space.
  6. An extensive property that is a measure of the average kinetic energy of molecules and atoms. It determines the spontaneous heat flow, which is always from hot to cold.
  7. Amount of heat needed to raise the temperature of one gram of water by one degree Celsius.
  8. The transfer of heat by the physical motion of masses of fluid (liquids and gases) by changes in density of the fluid

15 Clues: A unit of energy which is equal to Newtons. • The substance that is absorbing or releasing the heat. • A chemical reaction in which its products absorb energy. • A chemical reaction in which energy is released into the surroundings. • The area around the substance that is absorbing or releasing the heat. • ...

Stoichiometry Crossword 2022-11-29

Stoichiometry Crossword crossword puzzle
Across
  1. the lowest whole number ratio of ions represented in an ionic compound
  2. tells you by mass what percent of each element is present in a compound
  3. a process in which reactants react chemically and convert into products by chemical transformation
  4. an atom or group of atoms in which the number of electrons is different from the number of protons
  5. the chemical formula that gives the total number of atoms of each element in each molecule of a substance
  6. a ratio (or fraction) that represents the relationship between two different units and is always equal to 1
  7. the mass equivalent of Avogadro's number of atoms of an element; mass per mole
Down
  1. the numerical relationship between the quantities of reacting substances that corresponds to the laws of stoichiometry.
  2. substances that are made up of only one kind of particle and have a fixed or constant structure
  3. uses the relationship between reactants and products in a chemical reaction to determine quantitative data
  4. the chemical formula of a compound that gives the simplest ratio of elements in a compound rather than the total number of atoms in the molecule
  5. scientific unit that measures the mass of a substance (has a value of 6.023 x 10 )
  6. a compound that absorbs water molecules from its environment and includes them as part of its structure
  7. basic building block of chemistry; the smallest part of a substance that cannot be broken down chemically
  8. reaction an equation where the number of atoms of each type in the reaction is the same on both the reactant and product sides
  9. number of units in one mole of any substance (defined as its molecular weight in grams), equal to 6.023 × 10

16 Clues: the lowest whole number ratio of ions represented in an ionic compound • tells you by mass what percent of each element is present in a compound • the mass equivalent of Avogadro's number of atoms of an element; mass per mole • scientific unit that measures the mass of a substance (has a value of 6.023 x 10 ) • ...

Module 2 Vocabulary 2022-03-15

Module 2 Vocabulary crossword puzzle
Across
  1. a starting substance in a chemical reaction.
  2. the amount of space a substance takes up.
  3. a substance produced by a chemical reaction.
  4. the amount of matter in an object.
  5. a number placed in front of an element symbol or chemical formula in an equation.
  6. a change in matter in which the substances that make up the matter change into other substances with different chemical and physical properties.
  7. more energy is required to break the bonds of the reactants than is released when products form.
  8. occurs when a substance reacts with another substance, changing it into a new substance.
  9. more energy is released when the products form than is required to break the bonds in the reactants.
  10. a characteristic of matter that can be observed or measured without changing the identity of the matter.
Down
  1. the energy released when atoms form bonds.
  2. occurs when substances react with oxidizing agents, changing them to a new substance.
  3. the ability of a type of matter to burn easily.
  4. a characteristic of matter that can be observed as it changes to a different type of matter.
  5. a process in which atoms of one or more substances rearrange to form one or more new substances.
  6. the mass per unit volume of a substance.

16 Clues: the amount of matter in an object. • the mass per unit volume of a substance. • the amount of space a substance takes up. • the energy released when atoms form bonds. • a starting substance in a chemical reaction. • a substance produced by a chemical reaction. • the ability of a type of matter to burn easily. • ...

Science Vocab 2023-11-13

Science Vocab crossword puzzle
Across
  1. 2 or more atoms joined together, these can be the same or different types of atoms
  2. the process of rearranging small molecules made up larger repairing chains of molecules called polymers
  3. consists of only one type of atom and cannot be broken down into smaller substants
  4. the smallest unit of chemical elements matter is made up of these tiny particles
  5. a chemical change that occurs when 2 or more substances combine to make a new substance
  6. arrangement of the parts of something such as the stem of a plant or the atoms in molecules
  7. A ride between 2 sets of measurements
  8. A characteristics of a material that depends on the type and arrangement of atoms
  9. any substance made bye humans from a chemical reaction to for new materials
Down
  1. A material or substance found in nature and used by humans to meet a need
  2. A substance that cannot be broken down by microorganisms
  3. the way the part of an atom are put together
  4. A long chain of sometimes thousands of molecules
  5. a chain of linked molecules made up of groups of repeating atoms
  6. A substance that can be broken down by microorganisms
  7. A tiny piece of matter to small to be seen

16 Clues: A ride between 2 sets of measurements • A tiny piece of matter to small to be seen • the way the part of an atom are put together • A long chain of sometimes thousands of molecules • A substance that can be broken down by microorganisms • A substance that cannot be broken down by microorganisms • a chain of linked molecules made up of groups of repeating atoms • ...

Rates of Reaction lesson 2021-10-13

Rates of Reaction lesson crossword puzzle
Across
  1. This is measured using a stop watch to find out the rate of reaction
  2. A substance that is formed in a chemical reaction. Formed after a successful collision.
  3. The number of times per second
  4. This speeds up the rate of the reaction without being used up in the reaction
  5. A substance that takes part in and undergoes change during a reaction. These particles collide during a reaction
  6. The speed of the reaction
Down
  1. This factor increases the rate of reaction by making the particles move around quicker. This means they collide more frequently and with more energy.
  2. When reactant particles bump into each other
  3. area This factor increases the rate of reaction. Powder has a greater___________than small and large chips
  4. Is a biological catalyst
  5. This factor increases the rate of reaction and is used to define the amount of particles in a certain volume

11 Clues: Is a biological catalyst • The speed of the reaction • The number of times per second • When reactant particles bump into each other • This is measured using a stop watch to find out the rate of reaction • This speeds up the rate of the reaction without being used up in the reaction • ...

photosynthesis by jocelyn 2022-01-11

photosynthesis by jocelyn crossword puzzle
Across
  1. is the ‘waste’ product.
  2. Photosynthesis is a _______ reaction.
  3. produced in the leaves is transported to all other parts of the plant to be used as food.
  4. Chloroplasts contain the green chemical.
  5. is the absorbed by the roots and transported to the leaves.
  6. carbon dioxide is takein in by the plant through tiny openings on the leaves.
  7. Is the useful product for plants.
  8. Chlorophyll ______ the energy from sunlight that allows carbon dioxide and water to react.
Down
  1. Photosynthesis takes place in reaction.
  2. Plants use _____ energy from the Sun to power photosynthesis.
  3. Living things need energy to _______ and to carry out activities .
  4. Photosynthesis takes place in plant cells.
  5. In which organisms does photosynthesis happen?

13 Clues: is the ‘waste’ product. • Is the useful product for plants. • Photosynthesis is a _______ reaction. • Photosynthesis takes place in reaction. • Chloroplasts contain the green chemical. • Photosynthesis takes place in plant cells. • In which organisms does photosynthesis happen? • is the absorbed by the roots and transported to the leaves. • ...

Properties and Changes 2024-10-04

Properties and Changes crossword puzzle
Across
  1. Change in ___ such as turning red to yellow is a chemical change.
  2. Where a substance falls on the pH scale.
  3. When a liquid turns into a solid.
  4. Properties that you can observe without a change happening.
  5. A substance's ability to burn.
  6. Change in ___ is a sign of a chemical change such as becoming hotter.
  7. When a solid turns into a liquid.
Down
  1. A new solid that is formed in a chemical reation.
  2. The smell of something.
  3. The ability to react with another element or substance.
  4. The ability for electricity to flow through an object.
  5. How shiny an object is.
  6. When a liquid turns to a gas.
  7. Properties you can only observe during a chemical reaction.

14 Clues: The smell of something. • How shiny an object is. • When a liquid turns to a gas. • A substance's ability to burn. • When a liquid turns into a solid. • When a solid turns into a liquid. • Where a substance falls on the pH scale. • A new solid that is formed in a chemical reation. • The ability for electricity to flow through an object. • ...

chemical reactions 2017-05-30

chemical reactions crossword puzzle
Across
  1. magnesium + zinc sulfate magnesium sulfate + zinc
  2. Smaller reactants have greater_______________,making it easier for them to react
  3. Products are always carbon dioxide and water
  4. For following chemical reaction: calcium + bromine ---> calcium bromide, the reactants are_______________
Down
  1. For the following chemical reaction: zinc + iron sulfate ---> zinc sulfate + iron, the products are___________
  2. lead(II) nitrate and potassium iodide to form potassium nitrate and lead iodide
  3. Two or more simple substances combine to form a more complex product
  4. A single compound breaks down into two or more elements or new compounds
  5. Higher_______________provide more energy for the systems in which reactants react
  6. __________ is always a reactant in a combustion reaction

10 Clues: Products are always carbon dioxide and water • magnesium + zinc sulfate magnesium sulfate + zinc • __________ is always a reactant in a combustion reaction • Two or more simple substances combine to form a more complex product • A single compound breaks down into two or more elements or new compounds • ...

Photosynthesis 2023-11-14

Photosynthesis crossword puzzle
Across
  1. process in which plants use sunlight, water and carbon dioxide to make their own food.
  2. acts as a source of energy that helps the plants grow
  3. place where dark reaction occurs
  4. a reaction that converts light energy to chemical energy, produces ATP and NAPDH
Down
  1. synthesis part of photosynthesis, energy from the sun is converted to the chemical energy of sugars
  2. where photosynthesis occurs
  3. absorbs light energy from the sun and is responsible for the plants green pigment
  4. A product of photosynthesis
  5. a liquid that enters the roots of a plant and travels to the leaves
  6. when light dependent reaction splits water into oxygen, hydrogen, and electrons

10 Clues: where photosynthesis occurs • A product of photosynthesis • place where dark reaction occurs • acts as a source of energy that helps the plants grow • a liquid that enters the roots of a plant and travels to the leaves • when light dependent reaction splits water into oxygen, hydrogen, and electrons • ...

chemistry 5 2024-05-15

chemistry 5 crossword puzzle
Across
  1. Bond Chemical bond formed by the transfer of electrons.
  2. Bond Covalent bond with equal sharing of electrons.
  3. Bond Bond formed by the attraction between free floating valence electrons and positively charged metal ions.
  4. Reaction where a single compound breaks down into two or more elements or new compounds.
Down
  1. Bond Covalent bond with unequal sharing of electrons.
  2. Displacement Reaction where one element replaces another in a compound.
  3. der Waals Forces Weak attractions between molecules or parts of molecules.
  4. Bond Chemical bond formed by the sharing of electrons.
  5. Displacement Reaction where ions exchange between two compounds.
  6. Bond Weak bond between a hydrogen atom and another electronegative atom.

10 Clues: Bond Covalent bond with equal sharing of electrons. • Bond Covalent bond with unequal sharing of electrons. • Bond Chemical bond formed by the sharing of electrons. • Bond Chemical bond formed by the transfer of electrons. • Displacement Reaction where ions exchange between two compounds. • ...

Chapter 13 Georgia Chupurdy 2019-09-28

Chapter 13 Georgia Chupurdy crossword puzzle
Across
  1. must be moving fast enough to overcome the energy
  2. reacts faster
  3. one or more new compounds are formed
Down
  1. when water behaves like an acid
  2. is also known as activation energy
  3. no atoms are gained or lost during any reaction
  4. reaction that has an absorption of energy
  5. how quickly the concentration of reactants decrease
  6. reaction that has a net release of energy
  7. a substance that lowers the activation energy of a chemical reaction

10 Clues: reacts faster • when water behaves like an acid • is also known as activation energy • one or more new compounds are formed • reaction that has an absorption of energy • reaction that has a net release of energy • no atoms are gained or lost during any reaction • must be moving fast enough to overcome the energy • how quickly the concentration of reactants decrease • ...

Rates of Reaction lesson 2021-10-13

Rates of Reaction lesson crossword puzzle
Across
  1. This factor increases the rate of reaction and is used to define the amount of particles in a certain volume
  2. This factor increases the rate of reaction by making the particles move around quicker. This means they collide more frequently and with more energy.
  3. The speed of the reaction
  4. This is measured using a stop watch to find out the rate of reaction
  5. A substance that takes part in and undergoes change during a reaction. These particles collide during a reaction
Down
  1. When reactant particles bump into each other
  2. A substance that is formed in a chemical reaction. Formed after a successful collision.
  3. Is a biological catalyst
  4. This factor increases the rate of reaction. Powder has a greater___________than small and large chips
  5. This speeds up the rate of the reaction without being used up in the reaction
  6. The number of times per second

11 Clues: Is a biological catalyst • The speed of the reaction • The number of times per second • When reactant particles bump into each other • This is measured using a stop watch to find out the rate of reaction • This speeds up the rate of the reaction without being used up in the reaction • ...

Enzymes and Photosynthesis 2024-08-27

Enzymes and Photosynthesis crossword puzzle
Across
  1. Membrane-bound structures within chloroplasts that contain chlorophyll and are the site of the light-dependent reactions in photosynthesis.
  2. The series of reactions in photosynthesis that take place in the stroma of chloroplasts and do not require light; these reactions convert carbon dioxide and other compounds into glucose.
  3. A stack of thylakoids within the chloroplast of plant cells, where light-dependent reactions of photosynthesis take place.
  4. The green pigment in plants and algae that absorbs light energy used to carry out photosynthesis.
  5. An organelle found in plant and algae cells where photosynthesis occurs, containing chlorophyll and other pigments.
  6. A protein that acts as a catalyst to speed up chemical reactions in the body without being consumed in the process.
  7. A type of chemical reaction that requires the input of energy to proceed, typically absorbing energy from its surroundings.
Down
  1. Referring to something that occurs or is located within a cell.
  2. Energy The minimum amount of energy required to start a chemical reaction.
  3. The fluid-filled space surrounding the thylakoids in chloroplasts, where the Calvin cycle of photosynthesis takes place.
  4. Referring to something that occurs or is located outside of a cell.
  5. An energy carrier molecule produced in the light-dependent reactions of photosynthesis and used in the Calvin cycle to help convert carbon dioxide into glucose.
  6. The process by which plants, algae, and some bacteria convert light energy, water, and carbon dioxide into glucose and oxygen.
  7. The primary energy carrier in cells, used to power various cellular processes.
  8. A type of chemical reaction that releases energy, usually in the form of heat.

15 Clues: Referring to something that occurs or is located within a cell. • Referring to something that occurs or is located outside of a cell. • Energy The minimum amount of energy required to start a chemical reaction. • The primary energy carrier in cells, used to power various cellular processes. • ...

Thermochemistry 2025-01-14

Thermochemistry crossword puzzle
Across
  1. Chemical reaction that releases heat into the surroundings.
  2. Endothermic reaction that occurs in plants.
  3. Study of heat change when chemical reactions take place.
Down
  1. Exothermic reaction that occurs in animals.
  2. A device that measures change in temperature during exothermic and endothermic reactions.
  3. Chemical reaction that absorbs heat from the surroundings.

6 Clues: Exothermic reaction that occurs in animals. • Endothermic reaction that occurs in plants. • Study of heat change when chemical reactions take place. • Chemical reaction that absorbs heat from the surroundings. • Chemical reaction that releases heat into the surroundings. • A device that measures change in temperature during exothermic and endothermic reactions.

Year 7 science revision 2017-06-11

Year 7 science revision crossword puzzle
Across
  1. A substance made of one type of atom only.
  2. A large mass at the centre of a solar system (if there are other bodies present) that produces heat and light.
  3. Allows light to pass through but is not completely clear.
  4. The total mass of reactants before a reaction is equal to the total mass of products after a reaction because no atoms can be created or destroyed so the mass must remain unchanged
  5. A substance containing two or more different elements.
  6. The process of burning by heat.
  7. The change of state from a solid to a gas.
  8. Process by which a wave changes speed and sometimes direction upon entering a denser or less dense medium.
  9. A group of similar cells that carry out the same function.
  10. A substance formed in a chemical reaction.
  11. The organs responsible for gas exchange in mammals, birds, reptiles and amphibians.
  12. A group of different tissues that work together to carry out a particular function.
  13. Where photosynthesis happens.
  14. The number of waves produced each second.
  15. Force exerted over an area.
  16. The Earth's only natural satellite
Down
  1. Force that resists one object moving through or over something.
  2. The force acting on an object due to the pull of gravity from a massive object like a planet.
  3. Reaction in which energy is given out to the surroundings.
  4. When the total force in opposite directions are equal in magnitude.
  5. A pair of muscles that act on a joint. As one contracts, the other one relaxes.
  6. The movement of particles from an area of high concentration to an area of low concentration.
  7. Sound with a frequency greater than 20,000 Hz (20 kHz).
  8. Gives out light.
  9. The smallest part of an element that can exist.
  10. The maximum height of a wave from the middle of the wave to its crest or trough.
  11. A collection of two or more atoms held together by chemical bonds.
  12. The jelly like substance where the chemical reactions in a cell take place.
  13. A push or a pull. The unit of force is the newton (N).

29 Clues: Gives out light. • Force exerted over an area. • Where photosynthesis happens. • The process of burning by heat. • The Earth's only natural satellite • The number of waves produced each second. • A substance made of one type of atom only. • The change of state from a solid to a gas. • A substance formed in a chemical reaction. • ...

Crossword Puzzle Chapter 2 2023-09-20

Crossword Puzzle Chapter 2 crossword puzzle
Across
  1. A substance that is present before a chemical re­action and takes part in it, usually shown on the left­hand side of a chemical equation.
  2. The building block of matter; the smallest possible particle of an element.
  3. An attraction between two atoms as a result of shar­ing or transferring valence electrons.
  4. A change in a substance that results in one or more new substances being formed that have dif­ferent physical and chemical properties than those of the original substance.
  5. The process by which particles in solution are evenly distributed throughout the solvent by Brownian motion.
  6. The process by which one substance, the sol­ute, is broken up into smaller pieces by and distributed within a second substance, the solvent.
  7. A substance that can produce hydroxide ions (OH+) or­ accept hydrogen ions (H+) in solution.
  8. A class of nonpolar organic compounds that are in­ soluble in water and are used for energy storage and cell membranes in living things.
  9. The substances formed during a chemical reaction, usually indicated on the right­hand side of a chemical equation.
  10. The tendency of energy to disperse and become less available to do work.
  11. A chang e in a substance that does not change the identity of the substance (e.g., a change of form or state).
  12. A measurement of the average speed of the particles within a substance.
  13. An organic compound comprised of the ele­ments carbon, hydrogen, and oxygen; includes sugars, starch and cellulose.
  14. A naturally occurring catalyst, usually a protein.
  15. The smallest particle of a covalently bonded com­pound.
  16. A class of organic compounds that serve as the building blocks of proteins.
Down
  1. A pure substance made from two or more ele­ments that are chemically combined.
  2. The attraction of particles in one substance for particles in a different substance.
  3. A substance that binds to an enzyme and re­duces its activity, thus slowing a chemical reaction that the enzyme catalyzes.
  4. The attraction between like particles within polar substances.
  5. A substance that can produce hydrogen ions (H+) in solution.
  6. A substance that changes the rate of a chemical re­action but is not itself used up or affected by the reaction.
  7. A pure substance made of only one kind of atom.
  8. A class of simple organic compounds important in living things as a source of both energy and structure.
  9. The ability to do work. Especially in biology, the driver of the physical and chemical processes necessary for life.
  10. Quality of molecules having an uneven distribution of electrical charge, resulting in some regions of a mole­cule having negative charge while others are positive.
  11. A covalently bonded compound con­taining the element carbon.
  12. The physical stuff that makes up the universe. Any­thing that occupies space and has mass.
  13. A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA.

29 Clues: A pure substance made of only one kind of atom. • A naturally occurring catalyst, usually a protein. • The smallest particle of a covalently bonded com­pound. • A substance that can produce hydrogen ions (H+) in solution. • A covalently bonded compound con­taining the element carbon. • The attraction between like particles within polar substances. • ...

Vocab 2025-11-10

Vocab crossword puzzle
Across
  1. Table - A chart that arranges all chemical elements
  2. - change of pattern
  3. - elements with a mix of metals and nonmetals
  4. - represents elements with the same number of electrons shells
  5. - cannot be broken down simpler
  6. Metals - soft, shiny, and highly reactive metals
  7. behavior - description of ways a substance can change
Down
  1. - substance undergo a chemical reaction
  2. / Family - collection of elements
  3. Mendeleev - organized elements by atomic weight
  4. - an element that's shiny
  5. - lack properties of metals

12 Clues: - change of pattern • - an element that's shiny • - lack properties of metals • - cannot be broken down simpler • / Family - collection of elements • - substance undergo a chemical reaction • - elements with a mix of metals and nonmetals • Mendeleev - organized elements by atomic weight • Metals - soft, shiny, and highly reactive metals • ...

Thermochemistry 2013-04-20

Thermochemistry crossword puzzle
Across
  1. difference between potential energy of products and reactants
  2. the potential change of a system during processes such as a chemical reaction or a physical change
  3. the study of energy and energy transfer
  4. absorption of energy
  5. everything else in the universe
Down
  1. release of energy
  2. reaction between a hydrocarbon and oxygen to give off CO2 and H2O
  3. the study of energy involved in chemical reactions
  4. energy of motion
  5. a part of the universe being studied and observed

10 Clues: energy of motion • release of energy • absorption of energy • everything else in the universe • the study of energy and energy transfer • a part of the universe being studied and observed • the study of energy involved in chemical reactions • difference between potential energy of products and reactants • reaction between a hydrocarbon and oxygen to give off CO2 and H2O • ...

Cheese 2017-01-05

Cheese crossword puzzle
Across
  1. To change the rate of chemical reaction
  2. Used to form produce distinct flavors of different types of cheese
  3. It is used as a storage place to store milk; it has rennin in that makes cheese
  4. Are protein molecule that have the ability to change the rate of the chemical reaction.
Down
  1. The remaining liquid
  2. Conatainer that holds liquids
  3. Milk protein
  4. forms different basis of simplest form type of cheese
  5. The solid portion of the milk
  6. The stomach lining

10 Clues: Milk protein • The stomach lining • The remaining liquid • Conatainer that holds liquids • The solid portion of the milk • To change the rate of chemical reaction • forms different basis of simplest form type of cheese • Used to form produce distinct flavors of different types of cheese • It is used as a storage place to store milk; it has rennin in that makes cheese • ...

Scientific Crossword 2024-02-25

Scientific Crossword crossword puzzle
Across
  1. A chemical reaction that releases energy
  2. A force that pulls objects towards the center of the Earth
  3. A type of energy produced by the nucleus of an atom
  4. The study of Earth and its atmosphere
Down
  1. The building blocks of proteins
  2. The study of living things
  3. A substance that changes the rate of a chemical reaction
  4. The smallest unit of matter
  5. The process by which living organisms develop from an embryo
  6. The basic unit of heredity

10 Clues: The study of living things • The basic unit of heredity • The smallest unit of matter • The building blocks of proteins • The study of Earth and its atmosphere • A chemical reaction that releases energy • A type of energy produced by the nucleus of an atom • A substance that changes the rate of a chemical reaction • ...

Science 2024-12-17

Science crossword puzzle
Across
  1. The substances that are formed in a chemical reaction
  2. Process by which a green plant makes its own foo
  3. Distributes water to the plant
  4. The factory where photosynthesis happens
  5. Organelle that contains chlorophyll
Down
  1. The chemical needed for a reaction to take place
  2. Pigment which absorbs the sun’s energy
  3. Type of energy that comes from the Sun
  4. Carries the glucose to the plant for its life processes
  5. Lets gases in and out of the leaf

10 Clues: Distributes water to the plant • Lets gases in and out of the leaf • Organelle that contains chlorophyll • Pigment which absorbs the sun’s energy • Type of energy that comes from the Sun • The factory where photosynthesis happens • The chemical needed for a reaction to take place • Process by which a green plant makes its own foo • ...

VOCAB Terms 2025-11-07

VOCAB Terms crossword puzzle
Across
  1. This is an atoms positive charge
  2. This is the smallest piece of an element
  3. this is the transfer of heat through waves
  4. This makes up all of the periodic table
  5. This allows the passage of heat
Down
  1. This is the atoms negative charge
  2. This doesn't allow heat to pass through
  3. This is what is created by a chemical reaction
  4. This is the part of an atom with no electric charge
  5. This is what makes up a chemical reaction

10 Clues: This allows the passage of heat • This is an atoms positive charge • This is the atoms negative charge • This doesn't allow heat to pass through • This makes up all of the periodic table • This is the smallest piece of an element • This is what makes up a chemical reaction • this is the transfer of heat through waves • This is what is created by a chemical reaction • ...

Dapo Odusanya 2022-03-08

Dapo Odusanya crossword puzzle
Across
  1. a bond between 2
  2. the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
  3. a molecule is formed from the covalent bond
  4. the relationship between the relative quantities of substances taking part in a reaction or forming a compound, typically a ratio of whole integers.
  5. the coefficient in a balanced equation
Down
  1. maxium amount of product that can be produced based on the limiting reaction
  2. a single electron or one of two or more electrons in the outer shell of an atom that is responsible for the chemical properties of the atom.
  3. how much product is obtained compared to the maximum possible mass.
  4. mass of one mole of a substance
  5. reactant that runs out first in a chemical reaction

10 Clues: a bond between 2 • mass of one mole of a substance • the coefficient in a balanced equation • a molecule is formed from the covalent bond • reactant that runs out first in a chemical reaction • how much product is obtained compared to the maximum possible mass. • maxium amount of product that can be produced based on the limiting reaction • ...

Vocabulary 2021-09-14

Vocabulary crossword puzzle
Across
  1. In any chemical process, matter is neither lost or gained. (Sometimes stated as matter is not created or destroyed).
  2. Random kinetic energy possessed by objects in a material
Down
  1. The speed at which a chemical reaction occurs.
  2. The number placed in front of a compound to balance a chemical equation.
  3. a chemical equation where the number of atoms of each element are the same on both sides.
  4. The number of atoms of a particular element in a chemical reaction.
  5. The measure of the quantity of matter.
  6. This is the rate at which a substance undergoes a chemical change.

8 Clues: The measure of the quantity of matter. • The speed at which a chemical reaction occurs. • Random kinetic energy possessed by objects in a material • This is the rate at which a substance undergoes a chemical change. • The number of atoms of a particular element in a chemical reaction. • The number placed in front of a compound to balance a chemical equation. • ...

unit 2 vocab 2023-10-04

unit 2 vocab crossword puzzle
Across
  1. subunit of which nucleic acids are composed made up of a 5carbon sugar a phosphate group and a nitrogenous base
  2. elements or compounds that enter into a chemical reaction
  3. acid compound with an amino group on one end and a carboxyl group on the other end
  4. compound made up of carbon hydrogen and oxygen atoms type of nutrient that is the major source of energy for the body
  5. acid macromolecules containing hydrogen oxygen nitrogen carbon and phosphorus
  6. made up of amino acids
  7. macromolecule made mostly from carbon and hydrogen atoms includes fats oils and waxes
  8. molecules composed of many monomers makes up macromolecules
Down
  1. a complex carbohydrate made up of many monosaccharides
  2. large organic molecule made up of many atoms like proteins
  3. simple sugar molecule
  4. small chemical unit that makes up a polymer
  5. reaction process that changes or transforms one set of chemicals into another set of chemicals

13 Clues: simple sugar molecule • made up of amino acids • small chemical unit that makes up a polymer • a complex carbohydrate made up of many monosaccharides • elements or compounds that enter into a chemical reaction • large organic molecule made up of many atoms like proteins • molecules composed of many monomers makes up macromolecules • ...

puzzle 02 2024-06-10

puzzle 02 crossword puzzle
Across
  1. acid is product of reaction between naphthalene and KMnO4 in acidic medium
  2. is primary aromatic amine
  3. IUPAC name is Benzene-1,3-diol
  4. acid is the product of kolbe schmidtt reaction
  5. compound used to make mothballs
  6. value is usually measured as milligram of KOH per gram of sample (mg KOH/g fat)
Down
  1. is the aroamtic hydrocarbon.
  2. is The product reaction of an benzene with chloromethane using a strong lewis acid catalyst
  3. also known as carbolic acid
  4. is the condition produced by aerial oxidation of unsaturated fats present in foods
  5. gives positve tollens test
  6. is the chemical bond present in cyclopropane
  7. chloride product of reaction of benzoic acid with SOCl2.

13 Clues: is primary aromatic amine • gives positve tollens test • also known as carbolic acid • is the aroamtic hydrocarbon. • IUPAC name is Benzene-1,3-diol • compound used to make mothballs • is the chemical bond present in cyclopropane • acid is the product of kolbe schmidtt reaction • chloride product of reaction of benzoic acid with SOCl2. • ...

Respiration Crossword 2014-11-08

Respiration Crossword crossword puzzle
Across
  1. /2 or more things added together in a chemical reaction
  2. /often mixed up with respiration
  3. reaction / respiration is a ____________
  4. /respiration and ___________ are similar
Down
  1. /_____ respiration produces energy and oxygen
  2. /happens in every cell in your body
  3. /produced by combustion but not respiration
  4. /mixes with glucose to produce energy

8 Clues: /often mixed up with respiration • /happens in every cell in your body • /mixes with glucose to produce energy • reaction / respiration is a ____________ • /respiration and ___________ are similar • /produced by combustion but not respiration • /_____ respiration produces energy and oxygen • /2 or more things added together in a chemical reaction

HBS 6 Crossword Puzzle 2021-12-03

HBS 6 Crossword Puzzle crossword puzzle
Across
  1. a disease in which the airways of the lungs narrow
  2. Any microorganism which causes disease
  3. third line of defense, the body produces immune cells to fight disease
  4. white blood cells! there are two types
  5. a reaction caused when the immune system is overly sensitive
  6. a chemical that kills bacteria or slows their growth
  7. the second line of defense, causes inflammation
Down
  1. molecules that the body uses to recognize anything as part of your body or foreign
  2. A condition where the body produced too little insulin or cannot process it properly
  3. weakened or killed pathogens that trigger the immune response and help build immunity
  4. a lymphocyte which identifies pathogens, and can distinguish one pathogen from another
  5. the body's ability to destroy pathogens before they cause disease
  6. A chemical that is responsible for the symptoms of allergies
  7. The type of protection where antibodies are given to a person, but the person can't make them themselves
  8. A chemical which is produced by some pathogens and can affect cells
  9. a substance that enables the body to take glucose from blood
  10. reaction where the body can produce its own antibodies to fight disease
  11. anything that causes an allergy
  12. White blood cell which engulfs pathogens

19 Clues: anything that causes an allergy • Any microorganism which causes disease • white blood cells! there are two types • White blood cell which engulfs pathogens • the second line of defense, causes inflammation • a disease in which the airways of the lungs narrow • a chemical that kills bacteria or slows their growth • ...

Water Engine 2025-05-11

Water Engine crossword puzzle
Across
  1. High-pressure container used to store hydrogen or gas in vehicles.
  2. Gas produced alongside hydrogen during electrolysis; can be released or reused.
  3. Energy model based on the large-scale production and use of clean hydrogen.
  4. Amount of carbon dioxide released, often linked to fossil fuel use.
  5. Device that converts hydrogen into electricity, with water vapor as the only byproduct.
  6. Chemical reaction that releases energy through the oxidation of a fuel.
  7. Process that uses electric current to split water into hydrogen and oxygen.
  8. Energy generated from endless sources like the sun or wind.
  9. A light, flammable gas used as a clean fuel after being extracted from water.
  10. Substance that speeds up a chemical reaction without being consumed.
Down
  1. Transformation of one form of energy (chemical, electrical, etc.) into another.
  2. Vehicle that uses hydrogen as its main energy source.
  3. Method of introducing a fluid (fuel or gas) into an engine.
  4. Ratio of consumed energy converted into useful output.
  5. Set of measures to prevent risks related to hydrogen use.
  6. Motor powered by electricity that drives a vehicle’s wheels.
  7. Force exerted by a gas; essential for storing compressed hydrogen.
  8. Ability of a system to endure while respecting the environment.
  9. Device used to produce hydrogen from water via electrolysis.

19 Clues: Vehicle that uses hydrogen as its main energy source. • Ratio of consumed energy converted into useful output. • Set of measures to prevent risks related to hydrogen use. • Method of introducing a fluid (fuel or gas) into an engine. • Energy generated from endless sources like the sun or wind. • Motor powered by electricity that drives a vehicle’s wheels. • ...

Photosynthesis 2022-08-29

Photosynthesis crossword puzzle
Across
  1. from food
  2. a substance produced in a chemical reaction
  3. the process by which plants use the sun's energy to convert water and carbon dioxide into sugars, which they use for food, changes radiant energy to chemical energy
Down
  1. an essential gas for plants in order to make their own food
  2. from the sun
  3. small opening (pore) in the lower epidermis of a plant that allows for respiration or gasses to exchange...ex: Oxygen, Carbon Dioxide and Water Vapor
  4. a green pigment found in the chloroplasts of plants, algae, and some bacteria that absorbs radiant energy
  5. the name for the substances that start a chemical reaction
  6. sugar; made during photosynthesis; main source of energy for plants and animals
  7. plant tissue that transports water and minerals from the roots to the leaves / flowers
  8. a gas that is the waste product in photosynthesis

11 Clues: from food • from the sun • a substance produced in a chemical reaction • a gas that is the waste product in photosynthesis • the name for the substances that start a chemical reaction • an essential gas for plants in order to make their own food • sugar; made during photosynthesis; main source of energy for plants and animals • ...

Science Crossword 2022-12-14

Science Crossword crossword puzzle
Across
  1. the combining power of an element, especially as measured by the number of hydrogen atoms it can displace or combine with.
  2. a thing or person that is the result of an action or process.
  3. compounds made up of ions that form charged particles when an atom (or group of atoms) gains or loses electrons
  4. processes in which chemical species break up into simpler parts.
  5. A molecule or polymer with a single backbone the longest continuous chain of atoms bonded to each other, exclusive of all others, that comprise a polymer.
  6. a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
  7. a compound or substance that has been purified or prepared, especially artificially.
  8. the mutual sharing of one or more pairs of electrons between two atoms.
  9. a chemical bond formed when one atom gives up one or more electrons to another atom.
Down
  1. describe molecules and polyatomic ions that have one atom in center and four atoms at the corners of a tetrahedron
  2. occur when parts of two ionic compounds are exchanged, making two new compounds.
  3. an action performed or a feeling experienced in response to a situation or event.
  4. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids
  5. a kind of molecular geometry in which the central atom has two lone pairs of electrons and is associated with two bond pairs
  6. the basic unit of a chemical element.
  7. a reaction in which one element is substituted for another element in a compound.
  8. consists of a central atom connected to three atoms arranged in a triangular pattern around the central atom.
  9. an arrangement of elements in a particular form, figure, or combination.
  10. the process by which one or more chemical reactions are performed with the aim of converting a reactant or starting material into a product or multiple products.
  11. a substance that takes part in and undergoes change during a reaction
  12. any atom or group of atoms that bears one or more positive or negative electrical charges.

21 Clues: the basic unit of a chemical element. • a thing or person that is the result of an action or process. • processes in which chemical species break up into simpler parts. • a substance that takes part in and undergoes change during a reaction • the mutual sharing of one or more pairs of electrons between two atoms. • ...

Term 3 Revision Crossword 2023-09-27

Term 3 Revision Crossword crossword puzzle
Across
  1. and lower course
  2. Red or green plants growing on rocks, breaking them down slowly through chemical weathering.
  3. Forces - Natural physical processes contributing to weathering.
  4. Natural mounds on riverbanks.
  5. The movement of weathered materials by agents such as water, wind, or ice.
  6. Course - Characterized by steep terrain and vertical erosion.
  7. Contamination of soil by chemicals or pollutants, often resulting from industrial or mining activities.
  8. Agents: Wind, water, and ice.
  9. Formed where rivers flow into seas, involving deposition and the splitting of the river into smaller channels.
  10. A chemical reaction occurring in silicate-rich rocks like granite and sandstone, turning them into clay when exposed to water.
  11. Formed when increased water speed increases downward erosion.
  12. Activities like burrowing/digging weaken soil and expose rocks to various weathering processes.
  13. The process of clearing large areas of forests, often for purposes such as agriculture, construction, or logging, which exposes the underlying soil.
  14. Deep valleys formed by downward erosion.
Down
  1. Sudden drops in river gradient.
  2. Chemical reaction involving carbon dioxide (CO₂) dissolving in rainwater, forming carbonic acid (H₂CO₃) and changing the composition of rocks.
  3. Faster-flowing sections without a sudden drop in height.
  4. The process of breaking down rocks and soil by natural forces.
  5. A farming practice where a single crop is grown continuously in the same area, leading to the depletion of specific nutrients in the soil and increased soil erosion risk.
  6. A farming method that involves planting different crops in a specific order or cycle to maintain soil fertility and reduce erosion.
  7. Forces - Weathering caused by plants, animals, and human activities.
  8. The settling of eroded materials in new locations.
  9. Activities like construction, mining, and agriculture impact land and can increase weathering.
  10. Common in dry areas with extreme day-night temperature differences, causing the outer layers of rocks to peel away.
  11. Forces - Chemical reactions that weaken and break down rocks.
  12. The materials (e.g., sand, stone, silt) carried by a river.
  13. The excessive feeding of animals on a particular area of land, leading to the removal of vegetation and soil vulnerability.
  14. The weathering reaction in iron-rich rocks, leading to the formation of reddish iron oxide (rust).
  15. Thaw Action
  16. The path of a river, including upper, middle, and lower sections.

30 Clues: Thaw Action • and lower course • Natural mounds on riverbanks. • Agents: Wind, water, and ice. • Sudden drops in river gradient. • Deep valleys formed by downward erosion. • The settling of eroded materials in new locations. • Faster-flowing sections without a sudden drop in height. • The materials (e.g., sand, stone, silt) carried by a river. • ...

chemistry 2023-07-06

chemistry crossword puzzle
Across
  1. amount of electrons in hydrogen
  2. atomic number 109
  3. unit for mass
  4. what group are called halogens
  5. a single covalent bond
  6. what orbits the nucleus in shells?
  7. chemical reaction that produces heat
  8. it has no charge
  9. current largest source of renewable energy in the electricity sector
Down
  1. two or more atoms chemically bonded together
  2. what variable is the one you measure
  3. speeds up a reaction
  4. a mixture of two or more metals
  5. the particles are more spread out
  6. atomic number of 62
  7. surname of discoverer of the nucleus
  8. word meaning unreactive

17 Clues: unit for mass • it has no charge • atomic number 109 • atomic number of 62 • speeds up a reaction • a single covalent bond • word meaning unreactive • what group are called halogens • amount of electrons in hydrogen • a mixture of two or more metals • the particles are more spread out • what orbits the nucleus in shells? • what variable is the one you measure • ...

Chapter 13-Chandler Ruetz 2016-10-12

Chapter 13-Chandler Ruetz crossword puzzle
Across
  1. measure of hydromium ions
  2. donates a hydrogen ion
  3. accepts a hydrogen ion
  4. AB-> A+B
  5. result of a chemical change
  6. must be added to break bonds
  7. displacement A+BC-> AC+B
  8. A+B-> AB
Down
  1. energy released during a reaction
  2. change the substance
  3. AB+oxygen-> oxides of A and B
  4. substance that undergoes a chemical change
  5. transfers from reactants to surroundings
  6. transfers from surroundings to reactants
  7. displacement AD+BC-> AC+BD

15 Clues: AB-> A+B • A+B-> AB • change the substance • donates a hydrogen ion • accepts a hydrogen ion • displacement A+BC-> AC+B • measure of hydromium ions • displacement AD+BC-> AC+BD • result of a chemical change • must be added to break bonds • AB+oxygen-> oxides of A and B • energy released during a reaction • transfers from reactants to surroundings • ...

Crossword Puzzle Title 2025-12-11

Crossword Puzzle Title crossword puzzle
Across
  1. this is different for every substance
  2. where the rust did not get its oxygen
  3. the source of atoms for a chemical reaction
  4. the name of the pipe system in Westfield, probably
  5. how Chicken Nugget gets your attention
  6. a quick way to show the atoms that make up a molecule
Down
  1. a substance made from rearranging the atoms of other substances
  2. how atoms are made into new substances
  3. how new substances are made
  4. get kicked around during a chemical reaction
  5. something that is made of all the same atoms or groups of atoms
  6. where the rust got its oxygen
  7. a group of atoms joined together in a particular way

13 Clues: how new substances are made • where the rust got its oxygen • this is different for every substance • where the rust did not get its oxygen • how atoms are made into new substances • how Chicken Nugget gets your attention • the source of atoms for a chemical reaction • get kicked around during a chemical reaction • the name of the pipe system in Westfield, probably • ...

Clash of Labs 2024-05-20

Clash of Labs crossword puzzle
Across
  1. The energy an object has due to its position.
  2. A laboratory technique used to determine the concentration of a substance in a solution.
  3. The acceleration of a chemical reaction by a catalyst.
  4. The decomposition of a compound using an electric current.
  5. The study of the three-dimensional arrangement of atoms in molecules.
  6. Isomer of a molecule that differs from another isomer by the rotation of a single bond in the molecule.
  7. The curve of fastest descent between two points is a
  8. Discovered the photoelectric effect
  9. The transition of a substance directly from the solid to the gas phase without passing through the intermediate liquid phase.
  10. Hydrogen spectral series in the infrared region (from n to n=3)
  11. Temperature and pressure at which the three phases of that substance coexist in thermodynamic equilibrium.
  12. Composed of different constituents or dissimilar components.
Down
  1. The chemical breakdown of a compound due to reaction with water.
  2. Elementary particle in the standard model of particle physics (125,11 ± 0,11 GeV ATLAS 2023))
  3. The gain of electrons by an atom or molecule.
  4. The process of organizing elements or structures in a periodic arrangement.
  5. Reduction of aromatic rings in an amine solvent.
  6. Compounds containing metal-carbon bonds.
  7. The branch of chemistry concerned with the chemical effects of light.

19 Clues: Discovered the photoelectric effect • Compounds containing metal-carbon bonds. • The energy an object has due to its position. • The gain of electrons by an atom or molecule. • Reduction of aromatic rings in an amine solvent. • The curve of fastest descent between two points is a • The acceleration of a chemical reaction by a catalyst. • ...

Crossword Puzzle 2021-03-11

Crossword Puzzle crossword puzzle
Across
  1. Transfer of an electron to a higher atomic orbital.
  2. Repetitive variation.
  3. The process of increasing the rate of a chemical reaction.
  4. A collection of chemical reactions that converts a mixture of carbon monoxide and hydrogen into liquid hydrocarbons.
  5. Discovery by Heike Kamerlingh Onnes.
  6. Raw material.
  7. MHD wave mode.
  8. Combustible hydrocarbon liquid.
  9. The quantitative property that must be transferred to an object in order to perform work on, or to heat, the object.
Down
  1. Representation of an object.
  2. A soft, silvery-white alkali metal.
  3. Balance.
  4. 1918 Physics Nobelist.
  5. Inelastic scattering of photons by matter
  6. Can convert chemical energy directly to electrical energy.
  7. Number 74.
  8. One of the four fundamental states of matter.
  9. A compound of nitrogen and hydrogen.
  10. Form of electromagnetic radiation.

19 Clues: Balance. • Number 74. • Raw material. • MHD wave mode. • Repetitive variation. • 1918 Physics Nobelist. • Representation of an object. • Combustible hydrocarbon liquid. • Form of electromagnetic radiation. • A soft, silvery-white alkali metal. • A compound of nitrogen and hydrogen. • Discovery by Heike Kamerlingh Onnes. • Inelastic scattering of photons by matter • ...

chemical reactions 2017-05-30

chemical reactions crossword puzzle
Across
  1. magnesium + zinc sulfate magnesium sulfate + zinc
  2. __________ is always a reactant in a combustion reaction
  3. Two or more simple substances combine to form a more complex product
  4. For the following chemical reaction: zinc + iron sulfate ---> zinc sulfate + iron, the products are___________
Down
  1. lead(II) nitrate and potassium iodide to form potassium nitrate and lead iodide
  2. For following chemical reaction: calcium + bromine ---> calcium bromide, the reactants are_______________
  3. Smaller reactants have greater_______________,making it easier for them to react
  4. Products are always carbon dioxide and water
  5. A single compound breaks down into two or more elements or new compounds
  6. Higher_______________provide more energy for the systems in which reactants react

10 Clues: Products are always carbon dioxide and water • magnesium + zinc sulfate magnesium sulfate + zinc • __________ is always a reactant in a combustion reaction • Two or more simple substances combine to form a more complex product • A single compound breaks down into two or more elements or new compounds • ...

chemical reactions 2017-05-30

chemical reactions crossword puzzle
Across
  1. Higher_______________provide more energy for the systems in which reactants react
  2. __________ is always a reactant in a combustion reaction
  3. Smaller reactants have greater_______________,making it easier for them to react
  4. lead(II) nitrate and potassium iodide to form potassium nitrate and lead iodide
  5. Two or more simple substances combine to form a more complex product
  6. A single compound breaks down into two or more elements or new compounds
Down
  1. magnesium + zinc sulfate magnesium sulfate + zinc
  2. For the following chemical reaction: calcium + bromine ---> calcium bromide, the reactants are_______________
  3. Products are always carbon dioxide and water
  4. For the following chemical reaction: zinc + iron sulfate ---> zinc sulfate + iron, the products are___________

10 Clues: Products are always carbon dioxide and water • magnesium + zinc sulfate magnesium sulfate + zinc • __________ is always a reactant in a combustion reaction • Two or more simple substances combine to form a more complex product • A single compound breaks down into two or more elements or new compounds • ...

chemical reactions 2017-05-30

chemical reactions crossword puzzle
Across
  1. For the following chemical reaction: calcium + bromine ---> calcium bromide, the reactants are_______________
  2. Two or more simple substances combine to form a more complex product
  3. magnesium + zinc sulfate magnesium sulfate + zinc
  4. For the following chemical reaction: zinc + iron sulfate ---> zinc sulfate + iron, the products are___________
Down
  1. A single compound breaks down into two or more elements or new compounds
  2. lead(II) nitrate and potassium iodide to form potassium nitrate and lead iodide
  3. Higher_______________provide more energy for the systems in which reactants react
  4. Products are always carbon dioxide and water
  5. __________ is always a reactant in a combustion reaction
  6. Smaller reactants have greater_______________,making it easier for them to react

10 Clues: Products are always carbon dioxide and water • magnesium + zinc sulfate magnesium sulfate + zinc • __________ is always a reactant in a combustion reaction • Two or more simple substances combine to form a more complex product • A single compound breaks down into two or more elements or new compounds • ...

Reactions and energy 2021-02-22

Reactions and energy crossword puzzle
Across
  1. A simple sugar made up of carbon, hydrogen and oxygen
  2. A group of atoms bonded together
  3. A watery fluid that fills up the rest of the cell
  4. A reaction where a fuel reacts with oxygen and releases energy
  5. A reaction that transforms light energy into chemical energy
Down
  1. one of the structures within a cell that performs a particular job or function, such as the nucleus or mitochondria
  2. A substance that can burn, releasing energy
  3. a type of organelle within a cell that stores water, nutrients and wastes
  4. A substance made up of two or more types of atom bonded together
  5. A substance formed by a chemical reaction

10 Clues: A group of atoms bonded together • A substance formed by a chemical reaction • A substance that can burn, releasing energy • A watery fluid that fills up the rest of the cell • A simple sugar made up of carbon, hydrogen and oxygen • A reaction that transforms light energy into chemical energy • A reaction where a fuel reacts with oxygen and releases energy • ...

chapter 9 review 2014-01-13

chapter 9 review crossword puzzle
Across
  1. 6.02x10^23
  2. the calculation of quantities in chemical reactions as a subject of chemistry
  3. limits or determines the product that can be formed in a reaction
  4. recheck your work
  5. the amount of matter that an object contains
  6. look at
  7. solving for the unknown
  8. the amount of product that actually forms when the reaction is carried out in the lab
Down
  1. the ratio of the actual yield to the theoretical expressed as a percent
  2. is a maximum amount of product that could be formed from given amount of reactant
  3. the space occupied by sample matter
  4. volume 22.4L
  5. an atom
  6. the reactant the is not completely used up in the reaction
  7. group of measurements

15 Clues: an atom • look at • 6.02x10^23 • volume 22.4L • recheck your work • group of measurements • solving for the unknown • the space occupied by sample matter • the amount of matter that an object contains • the reactant the is not completely used up in the reaction • limits or determines the product that can be formed in a reaction • ...