chemical reaction Crossword Puzzles

Marcelo R. Enzymes 2022-01-18

Marcelo R. Enzymes crossword puzzle
Across
  1. having a special application, bearing, or reference
  2. The starting material for an enzymatic chemical reaction.
  3. the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation
  4. happens when one chemical substance is transformed into one or more different substances
  5. complex molecules that play many critical roles in the body.
  6. protein conformational changes in the binding process.
  7. are proteins that help speed up metabolism
Down
  1. The relatively stable combination of two or more ions or compounds into a larger structure without covalent binding.
  2. cover and materials that hold a book together
  3. to give a particular form or shape to
  4. substance that increases the rate of a reaction without itself being consumed.
  5. the region of an enzyme where substrate molecules bind and undergo a chemical reaction.

12 Clues: to give a particular form or shape to • are proteins that help speed up metabolism • cover and materials that hold a book together • having a special application, bearing, or reference • protein conformational changes in the binding process. • The starting material for an enzymatic chemical reaction. • complex molecules that play many critical roles in the body. • ...

Cellular Processes 2024-12-13

Cellular Processes crossword puzzle
Across
  1. pores on a leaf that allow carbon dioxide and oxygen to enter/exit the leaf
  2. process which organisms use glucose to make energy
  3. process which plants use sunlight, carbon dioxide, and carbon dioxide to produce glucose and oxygen
  4. a product of anaerobic respiration in animals made in muscles
  5. ingredients of a chemical reaction
  6. pigment responsible for capturing sunlight
  7. the building blocks of macromolecules
  8. organisms that can make their own food
Down
  1. process of reorganizing atoms and molecules
  2. energy stored in the bonds of molecules
  3. type of respiration that takes place WITH oxygen present
  4. type of respiration that takes place without oxygen present
  5. organisms that must eat to get energy
  6. what is made from a chemical reaction
  7. 'energy currency' that is made from cellular respiration
  8. the main structural component of plants
  9. type of energy related to movement
  10. the main energy source for plants

18 Clues: the main energy source for plants • ingredients of a chemical reaction • type of energy related to movement • organisms that must eat to get energy • what is made from a chemical reaction • the building blocks of macromolecules • organisms that can make their own food • energy stored in the bonds of molecules • the main structural component of plants • ...

Chemistry 2025-03-26

Chemistry crossword puzzle
Across
  1. A process you do related with stoichiometry
  2. The proportion between moles in a chemical reaction
  3. A chemical compound who oxides another one
  4. A problem related with chemistry topics
  5. This lae states that matter doesnt creates or destroys it transforms
  6. The process when you gain electrons
Down
  1. The ______ tells you if an element is possitive, negative or neutral
  2. The number who tells you the charge of an element
  3. A chemical compund who reduces another one
  4. The number who tells you the amount of particles on the reaction
  5. Another kind of type to balance an chemical equation (Uses oxidation and reduction)
  6. The process of finding the relationship between reactives and products
  7. The mass in grams of an element
  8. The process when you lose electrons
  9. When you fin the molar ratio you can find it

15 Clues: The mass in grams of an element • The process when you lose electrons • The process when you gain electrons • A problem related with chemistry topics • A chemical compund who reduces another one • A chemical compound who oxides another one • A process you do related with stoichiometry • When you fin the molar ratio you can find it • ...

Chemistry 2025-03-26

Chemistry crossword puzzle
Across
  1. A process you do related with stoichiometry
  2. The proportion between moles in a chemical reaction
  3. A chemical compound who oxides another one
  4. A problem related with chemistry topics
  5. This lae states that matter doesnt creates or destroys it transforms
  6. The process when you gain electrons
Down
  1. The ______ tells you if an element is possitive, negative or neutral
  2. The number who tells you the charge of an element
  3. A chemical compund who reduces another one
  4. The number who tells you the amount of particles on the reaction
  5. Another kind of type to balance an chemical equation (Uses oxidation and reduction)
  6. The process of finding the relationship between reactives and products
  7. The mass in grams of an element
  8. The process when you lose electrons
  9. When you fin the molar ratio you can find it

15 Clues: The mass in grams of an element • The process when you lose electrons • The process when you gain electrons • A problem related with chemistry topics • A chemical compund who reduces another one • A chemical compound who oxides another one • A process you do related with stoichiometry • When you fin the molar ratio you can find it • ...

Ch 13 chemical reactions 2017-10-13

Ch 13 chemical reactions crossword puzzle
Across
  1. Description of a solution in which the hydroxide ion concentration is higher than the hydronium ion concentration; also sometimes called alkaline.
  2. A rapid exothermic oxidation–reduction reaction between a material and molecular oxygen.
  3. An ionic compound commonly formed from the reaction between an acid and a base.
  4. Description of a chemical reaction in which there is a net release of energy.
  5. A representation of a chemical reaction in which reactants are written to the left of an arrow that points toward the products on the right.
  6. Description of a chemical reaction in which there is a net absorption of energy.
Down
  1. The minimum energy required in order for a chemical reaction to proceed.
  2. 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.
  3. A substance that donates hydrogen ions.
  4. A measure of the acidity of a solution; equal to the negative logarithm of the hydronium ion concentration.

10 Clues: A substance that donates hydrogen ions. • The minimum energy required in order for a chemical reaction to proceed. • Description of a chemical reaction in which there is a net release of energy. • An ionic compound commonly formed from the reaction between an acid and a base. • Description of a chemical reaction in which there is a net absorption of energy. • ...

science crossword 2013-11-14

science crossword crossword puzzle
Across
  1. dioxide / a colourless, odourless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in air (about 0.03 per cent) and is absorbed by plants in photosynthesis.
  2. process / (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved
  3. / (Scientific-Based) You and your audience can easily detect the difference between a speaker and an expert. DJ is an expert in the fields of leadership, organizations, team-building, and safety.
  4. / the rate per second of a vibration constituting a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light)
  5. / an air-like fluid substance which expands freely to fill any space available, irrespective of its quantity.
  6. / the ionized or ionizable constituents of a living cell, blood, or other organic matter.
  7. / the strength and vitality required for sustained physical or mental activity
  8. / a compound with particular chemical properties including turning litmus blue and neutralizing or effervescing with acids; typically, a caustic or corrosive substance of this kind such as lime or soda.
  9. / a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent).
  10. / a substance with particular chemical properties including turning litmus red, neutralizing alkalis, and dissolving some metals; typically, a corrosive or sour-tasting liquid of this kind
  11. / physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
Down
  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 smallest particle of a chemical element that can exist.
  3. / a substance which does not readily allow the passage of heat or sound.
  4. reaction / neutralization: a chemical reaction in which an acid and a base interact with the formation of a salt; with strong acids and bases the essential reaction is the combination of hydrogen ions with hydroxyl ions to form water
  5. table / relating to the periodic table of the elements.
  6. / the smallest structural and functional unit of an organism, which is typically microscopic and consists of cytoplasm and a nucleus enclosed in a membrane.
  7. / the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.
  8. / a strong, hard magnetic silvery-grey metal, the chemical element of atomic number 26, much used as a material for construction and manufacturing, especially in the form of steel.

19 Clues: table / relating to the periodic table of the elements. • / the smallest particle of a chemical element that can exist. • / a substance which does not readily allow the passage of heat or sound. • / the strength and vitality required for sustained physical or mental activity • ...

Biomolecules- Adrie Silva - Pd`1 2023-05-24

Biomolecules- Adrie Silva - Pd`1 crossword puzzle
Across
  1. A substance that cannot be separated into simpler substances
  2. Enzyme that speeds up chemical reaction by lowering the activation energy.
  3. A sugar that is naturally found in milk and milk products, like cheese or ice cream.
  4. Made 4 or more rings, a complex sugar. Starch and cellulose are examples.
  5. A compound consisting of a nucleoside linked to a phosphate group.
  6. A simple compound whose molecules can join together to form polymers
  7. Amide combining the amino group of one amino acid with the carboxyl group of another; usually obtained by partial hydrolysis of protein.
  8. A chemical substance that is present at the start of a chemical reaction (will be broken down).
  9. A type of fat, called lipid, that circulate in your blood.
  10. A compound consisting of large molecules made up of simple monomers (small molecules).
  11. Base unit of a lipid (two words.
  12. organic compounds containing an amino group and acid group(two words).
Down
  1. Organic molecule made of smaller sub-units.
  2. A lipid containing a phosphate group in its molecule.
  3. The substance acted upon by an enzyme. the enzyme breaks this down.
  4. The simplest structural unit of an element or compound.
  5. A colorless, odorless gas that is essential for respiration
  6. A nucleic acid present in all living cells that has structural similarities to DNA.
  7. An abundant nonmetallic element in all organic compounds
  8. Protein that speeds up chemical reactions.
  9. An essential component of living cells and source of energy.
  10. A chemical substance formed as a result of a chemical reaction.
  11. A linear organic polymer consisting of a large number of amino-acid residues bonded together in a chain, forming part of (or the whole of) a protein molecule.
  12. It is the carrier of genetic information.
  13. Oily, insoluble organic compound that's a component of cells.
  14. An organic compound essential to living cells.

26 Clues: Base unit of a lipid (two words. • It is the carrier of genetic information. • Protein that speeds up chemical reactions. • Organic molecule made of smaller sub-units. • An organic compound essential to living cells. • A lipid containing a phosphate group in its molecule. • The simplest structural unit of an element or compound. • ...

Chapter 17 Thermochemistry 2022-05-05

Chapter 17 Thermochemistry crossword puzzle
Across
  1. absorbs heat from the surroundings
  2. the heat absorbed by one mole of a solid substance as it melts to a liquid at a constant temperature
  3. the heat lost when one mole of a liquid solidifies at a constant temperature
  4. one that releases heat to its surroundings
  5. the heat of reaction for the complete burning of one mole of a substance
  6. include everything else in the universe
  7. the heat content of a system at constant pressure
Down
  1. the insulated device used to measure the absorption or release of heat in chemical or physical processes
  2. the amount of heat necessary to vaporize one mole of a given liquid
  3. states that if you add two or more thermochemical equations to give a final equation, then you can also add the heats of reaction to give the final heat of reaction
  4. a chemical equation that includes the enthalpy change
  5. the energy stored in the chemical bonds of a substance
  6. represented by q, is energy that transfers from one object to another because of a temperature difference between them
  7. the enthalpy change for the chemical equation exactly as it is written
  8. the precise measurement of the heat flow into or out of a system for chemical and physical processes
  9. the change in enthalpy that accompanies the formation of one mole of a compound from its elements with all substances in their standard states at 25 degrees Celsius
  10. the enthalpy change caused by dissolution of one mole of a substance
  11. the amount of heat released when 1 mol of vapor condenses at the normal boiling point
  12. the study of energy changes that occur during chemical reactions and changes in state
  13. the amount of heat it takes to raise the temperature of 1g of the substance 1 degree Celsius
  14. the amount of heat needed to increase the temperature of an object exactly 1 degree Celsius
  15. the part of the universe on which you focus your attention

22 Clues: absorbs heat from the surroundings • include everything else in the universe • one that releases heat to its surroundings • the heat content of a system at constant pressure • a chemical equation that includes the enthalpy change • the energy stored in the chemical bonds of a substance • the part of the universe on which you focus your attention • ...

Unit 2 Star R 2023-04-04

Unit 2 Star R crossword puzzle
Across
  1. Molecules combine to form them
  2. Dislikes water
  3. Only allows certain molecules in or out of the cell
  4. What is produced from a chemical reaction
  5. Cells combine to form them
  6. Molecules go from clustered to spaced out naturally
  7. Molecules that speed up chemical reactions
  8. Diffusion of water
  9. When energy is spent to move molecules across the membrane
  10. Organ systems combine to form them
  11. Atoms combine to form them
  12. Organelles combine to form them
Down
  1. Special region on an enzyme that makes chemical reactions
  2. Organs combine to form them
  3. The energy required to make a reaction
  4. When no energy is used when molecules move across the membrane
  5. Reactant; fits into the active site like a key to a lock
  6. Likes water
  7. When an active site of an enzyme changes shape and the substrate can no longer fit in
  8. Basic units of matter
  9. Inside of the phospholipid bilayer
  10. Tissues combine to form them

22 Clues: Likes water • Dislikes water • Diffusion of water • Basic units of matter • Cells combine to form them • Atoms combine to form them • Organs combine to form them • Tissues combine to form them • Molecules combine to form them • Organelles combine to form them • Inside of the phospholipid bilayer • Organ systems combine to form them • The energy required to make a reaction • ...

Biological molecules 2025-09-28

Biological molecules crossword puzzle
Across
  1. Water hating
  2. A reaction which breaks a chemical bond by the addition of water
  3. Only 1
  4. Monosaccharide with 6 carbons
  5. Chain of carbon and hydrogen atoms with at least 1 carbon to carbon double bond
  6. COOH group in amino acids
  7. A group attached to polypeptide in quaternary structure
  8. Bonds holding secondary protein structure in place
  9. Base in RNA in place of Thymine
  10. Describes base pairing in DNA
Down
  1. Bond formed between glycerol and fatty acids
  2. Pentose sugar in RNA
  3. Bond formed between 2 amino acids
  4. Will always pair with cytosine
  5. Glucose isomer with OH group below carbon 1
  6. Bond formed between 2 monosaccharides
  7. A chemical reaction resulting in the loss of water when a chemical bond is formed
  8. An uneven distribution of electrons creating positive and negative regions
  9. Number of levels of protein organisation
  10. Triglyceride with 1 fatty acid replaced with a phosphate group
  11. Many
  12. Level of protein structure describing the order of amino acids

22 Clues: Many • Only 1 • Water hating • Pentose sugar in RNA • COOH group in amino acids • Monosaccharide with 6 carbons • Describes base pairing in DNA • Will always pair with cytosine • Base in RNA in place of Thymine • Bond formed between 2 amino acids • Bond formed between 2 monosaccharides • Number of levels of protein organisation • Glucose isomer with OH group below carbon 1 • ...

Chem Vocab 2 2023-05-19

Chem Vocab 2 crossword puzzle
Across
  1. Data that can be counted or measured in numerical values
  2. Number of solute and moles in one liter of a solution
  3. The minimum amount of energy that must be provided in compound to result in 2 chemical reactions
  4. Name of the metal is written first, followed by the name of the nonmetal with its ending changing
  5. Scientific standard unit for measuring large identity or very small entities such as atoms
  6. Outer shell electrons with an atom and can participate in the formation of chemical bonds
  7. A word added to the beginning of a word
  8. A way to say that material in your work came from another source
  9. Substance that dissolves a solute, making a solution
  10. A number in front of a formula to balance a chemical equation
  11. Bond that holds atoms together in a metallic substance
  12. Amount of substance that is required to form a saturated solution in a given amount of solute at a specified temperature
  13. Ratio between the mass and the amount of substance of any sample
  14. Any compound containing water in the form of H2O molecules
Down
  1. State where both the reactants and products are present equally and balanced
  2. Electrons not used in bonding to form a molecule
  3. Ratio between the amounts in moles of any two compounds involved in a balanced chemical reactions
  4. Descriptive and conceptual findings collected through questionnaires interviews, or observations
  5. Total moles of a solute contained in a kilogram of a solvent
  6. Chemical equation that has an equal amount of each element on both sides
  7. Substance that is dissolved in a solution
  8. Molecules composed of only two atoms
  9. Percent ratio of actual yield and the theoretical yield
  10. Bond formed from the electrostatic attraction between opposites changed ions in a chemical compound
  11. The speed that a chemical reaction takes place
  12. A bond or molecule whose ends have opposite changes
  13. Number of units one mole of any substance (6.02214076*10²³)
  14. Chemical reaction expressed in words rather than chemical formulas
  15. A word added to the end of a word
  16. Relationship between the quantities of a substance taking part in a reaction or forming a compound

30 Clues: A word added to the end of a word • Molecules composed of only two atoms • A word added to the beginning of a word • Substance that is dissolved in a solution • The speed that a chemical reaction takes place • Electrons not used in bonding to form a molecule • A bond or molecule whose ends have opposite changes • Substance that dissolves a solute, making a solution • ...

Class 10 - SCI - Ch.1 2022-10-20

Class 10 - SCI - Ch.1 crossword puzzle
Across
  1. carbohydrates are broken down to form
  2. reaction in which heat is released
  3. (aq) represents
  4. calcium oxide
  5. reaction in which a single reactant breaks down to form simpler products
  6. reaction in which energy is absorbed
  7. single product formed from two or more reactants is ____ reaction
Down
  1. reaction in which one element replaces another
  2. silver chloride turns ___ in sunlight
  3. a substance is said to be ___ if it loses oxygen
  4. reaction in which oxgyen is gained
  5. substance that undergoes chemical change in reaction

12 Clues: calcium oxide • (aq) represents • reaction in which heat is released • reaction in which oxgyen is gained • reaction in which energy is absorbed • silver chloride turns ___ in sunlight • carbohydrates are broken down to form • reaction in which one element replaces another • a substance is said to be ___ if it loses oxygen • ...

C4 2015-03-06

C4 crossword puzzle
Across
  1. ionic compounds have a ... melting point
  2. sub-atomic particle with positive charge
  3. A mixture of 2 or more elements, chemically bonded
  4. the type of reaction that occurs when two solutions react to form a solid
  5. A charged particle
  6. a bond between two non-metals
  7. element with the chemical symbol Al
  8. something made up of 1 type of atom
  9. sub-atomic particle that has no charge
  10. scientist who arranged the elements into the periodic table
  11. sub-atomic particle with negative charge
  12. the part of the atom made up of protons and neutrons
Down
  1. first element on the periodic table
  2. the gaining of an electron
  3. the loss of an electron
  4. element with the chemical symbol Na
  5. the type of reaction that occurs when a halogen is added to a solution of a compound containing a less reactive halogen
  6. table of all the elements (two words)
  7. the scientist who created the law of octaves
  8. chemical symbol of chlorine

20 Clues: A charged particle • the loss of an electron • the gaining of an electron • chemical symbol of chlorine • a bond between two non-metals • first element on the periodic table • element with the chemical symbol Na • element with the chemical symbol Al • something made up of 1 type of atom • table of all the elements (two words) • sub-atomic particle that has no charge • ...

~enzymes & macomolecules~ 2026-03-02

~enzymes & macomolecules~ crossword puzzle
Across
  1. what protects hair from breakage?
  2. What is the substance in which an enzyme acts on?
  3. ___ are formed during chemical reactions as reactants are used.
  4. a change in shape that stops the protein from functioning.
  5. long term energy storage
  6. What is the enzyme in the pancreas that digests fat?
  7. speed up reactions
  8. Substance that speeds up the rate of a chemical reaction.
Down
  1. carbohydrate not able to be broken down into a simple sugar
  2. an example of nucleic acid starting with R
  3. slows or stops chemical reactions
  4. genetic materials
  5. What is the name for destroying the properties of molecule by heat or acidity?
  6. site What is the place where an enzyme and a substrate molecule react?
  7. maintain body tissue
  8. an example of nucleic acid starting with D
  9. large molecules built from smaller units
  10. what is the acidity or alkalinity of a solution called?
  11. large organic polymers essential for life
  12. A substance that takes part in and undergoes change during a reaction.

20 Clues: genetic materials • speed up reactions • maintain body tissue • long term energy storage • what protects hair from breakage? • slows or stops chemical reactions • large molecules built from smaller units • large organic polymers essential for life • an example of nucleic acid starting with R • an example of nucleic acid starting with D • ...

Unit 9 Review Crossword 2013-04-08

Unit 9 Review Crossword crossword puzzle
Across
  1. In a system closed to matter transfer, the amount of mass of that system remains constant over time. (The mass of the reactants must equal the mass of the products.)
  2. Using coefficients to make the number of each type of atom in the reactants equal to the number of each type of atom in the products.
  3. The mass of 1 mole of a substance. Found by expressing the atomic or formula masses in grams.
  4. A starting substance in a chemical reaction, appearing before the arrow in a chemical equation.
  5. Numbers used in a chemical equation to indicate the number of atoms or molecules. Determined during balancing, they are written in front of the atomic symbol or chemical formula.
  6. The mass of one atom of an element in atomic mass units (amu).
Down
  1. A new substance formed in a chemical reaction, appearing after the arrow in a chemical equation.
  2. The number of things in 1 mole -- 6.02 x 1023.
  3. The sum of the atomic masses in a chemical formula in atomic mass units (amu).
  4. There is usually only one correct ratio for the combination of elements in a compound.
  5. The process of using the balanced chemical equation to predict the amounts (masses) of some substance in the chemical reaction.
  6. A representation of the the submicroscopic rearrangement (new bonding) of atoms.
  7. Numbers that denote the ratios between elements in a chemical formula. Determined by electrons/charges (stability or low energy), they are written below the line and after the atomic symbol.

13 Clues: The number of things in 1 mole -- 6.02 x 1023. • The mass of one atom of an element in atomic mass units (amu). • The sum of the atomic masses in a chemical formula in atomic mass units (amu). • A representation of the the submicroscopic rearrangement (new bonding) of atoms. • ...

Physical Science 2021-12-02

Physical Science crossword puzzle
Across
  1. a measure of the concentration of hydrogen ions
  2. a chemical that accepts a hydrogen ion
  3. a chemical that donates a hydrogen ion
  4. on the left side of a chemical equation
  5. when reaction and its reverse act at the same rate
  6. a net release of energy
Down
  1. on the right side of a chemical equation
  2. ______ energy is also known as bond energy
  3. a net absorption of energy
  4. a substance that lowers the activation energy of a chemical reaction

10 Clues: a net release of energy • a net absorption of energy • a chemical that accepts a hydrogen ion • a chemical that donates a hydrogen ion • on the left side of a chemical equation • on the right side of a chemical equation • ______ energy is also known as bond energy • a measure of the concentration of hydrogen ions • when reaction and its reverse act at the same rate • ...

Unit 2 Star R 2023-04-04

Unit 2 Star R crossword puzzle
Across
  1. Molecules combine to form them
  2. Dislikes water
  3. Only allows certain molecules in or out of the cell
  4. What is produced from a chemical reaction
  5. Cells combine to form them
  6. Molecules go from clustered to spaced out naturally
  7. Molecules that speed up chemical reactions
  8. Diffusion of water
  9. When energy is spent to move molecules across the membrane
  10. Organ systems combine to form them
  11. Atoms combine to form them
  12. Organelles combine to form them
Down
  1. Special region on an enzyme that makes chemical reactions
  2. Organs combine to form them
  3. The energy required to make a reaction
  4. When no energy is used when molecules move across the membrane
  5. Reactant; fits into the active site like a key to a lock
  6. Likes water
  7. When an active site of an enzyme changes shape and the substrate can no longer fit in
  8. Basic units of matter
  9. Inside of the phospholipid bilayer
  10. Tissues combine to form them

22 Clues: Likes water • Dislikes water • Diffusion of water • Basic units of matter • Cells combine to form them • Atoms combine to form them • Organs combine to form them • Tissues combine to form them • Molecules combine to form them • Organelles combine to form them • Inside of the phospholipid bilayer • Organ systems combine to form them • The energy required to make a reaction • ...

Biomolecules and Enzymes 2020-10-22

Biomolecules and Enzymes crossword puzzle
Across
  1. produced from an enzyme and substrate
  2. the monomer of a carbohydrate
  3. an enzyme that breaks down lactose
  4. elements or compounds that enter into a chemical reaction
  5. organic molecules used and produced by living organisms for survival
  6. fats, oils, waxes, and steroids
  7. complex sugars made up of many monosaccharides
  8. the monomers of nucleic acid
  9. the chemical processes that occur within a living organism in order to maintain life
  10. proteins that speed up biochemical reactions
Down
  1. made up of three fatty acids and one glycerol
  2. enzymes are considered this type of biomolecule
  3. biomolecules made up of many monomers joined together
  4. the building blocks of biomolecules
  5. one of the types of lipids, liquid at room temperature
  6. a sugar made up of two monosaccharides
  7. quick source of energy
  8. an enzyme that no longer fits with a substrate due to a physical change
  9. made of amino acids
  10. bonds with an enzyme at an active site, has a specific shape
  11. substance that speeds up the rate of a chemical reaction

21 Clues: made of amino acids • quick source of energy • the monomers of nucleic acid • the monomer of a carbohydrate • fats, oils, waxes, and steroids • an enzyme that breaks down lactose • the building blocks of biomolecules • produced from an enzyme and substrate • a sugar made up of two monosaccharides • proteins that speed up biochemical reactions • ...

Honors Photosynthesis Review 2021-10-18

Honors Photosynthesis Review crossword puzzle
Across
  1. gas that is taken in by plants during photosynthesis
  2. gas that is released during photosynthesis as waste product
  3. structure within a chloroplast; location of chlorophyll
  4. "different feeder"; organism that does not make its own food EXAMPLE: animals
  5. organelle found in plants and algae; contains green pigment
  6. a substance that is formed as the result of a chemical reaction
  7. chemical energy used by cells; adenosine triphosphate
  8. sugar that is made during photosynthesis
  9. fluid within chloroplast; location of Calvin Cycle
  10. part of plant in which photosynthesis takes place; think of as solar panels
Down
  1. type of biomolecule; glucose is an example
  2. a substance that takes part in and undergoes change during a reaction
  3. light ___ reactions; use sunlight to split water
  4. light ___ reactions; depend on ATP and NADPH to produce glucose
  5. green pigment; absorbs sunlight
  6. part of plant in which water is absorbed
  7. chemical formula for water
  8. energy used during photosynthesis
  9. process that makes glucose using sunlight
  10. "self feeder"; organism that makes its own food via photosynthesis

20 Clues: chemical formula for water • green pigment; absorbs sunlight • energy used during photosynthesis • part of plant in which water is absorbed • sugar that is made during photosynthesis • process that makes glucose using sunlight • type of biomolecule; glucose is an example • light ___ reactions; use sunlight to split water • ...

Y10 Adv Science (Chemistry) Recall Xword 2025-10-26

Y10 Adv Science (Chemistry) Recall Xword crossword puzzle
Across
  1. another name for a hydrogen atom
  2. atoms that lose or gain electrons
  3. light and strong metal used in aircraft manufacturing
  4. neither metals nor non-metals
  5. a chemical ______ is a written chemical reaction
  6. the number of electron shells of an atom
  7. most metals have a high _______ point
  8. hold ions together to form compounds
  9. the electrons on the outer shell
  10. an insoluble ionic compound
Down
  1. compounds formed between metals and non-metals
  2. the main gas in Earth's atmosphere
  3. Can not be created nor destroyed during a chemical reaction
  4. ____metals. The first group of the periodic table
  5. metals are good conductors of
  6. non-metals are mainly solids except this
  7. sharing 4 electrons between atoms
  8. most abundant element in the universe
  9. ____ represent the number of valence electrons in the periodic table
  10. the group of unreactive gases
  11. the rule that requires 8 electrons on the outer shell
  12. two or more atoms bonded together
  13. bonds that share electrons

23 Clues: bonds that share electrons • an insoluble ionic compound • metals are good conductors of • neither metals nor non-metals • the group of unreactive gases • another name for a hydrogen atom • the electrons on the outer shell • atoms that lose or gain electrons • sharing 4 electrons between atoms • two or more atoms bonded together • the main gas in Earth's atmosphere • ...

Organic Reaction Mechanisms 2021-02-04

Organic Reaction Mechanisms crossword puzzle
Across
  1. These are chiral molecules that are mirror images of each other. These molecules cannot be superimposed on one another. This then meaning that it is not possible for the molecules to placed on top of one another and give the same molecule.
  2. This is when an equal action of opposing forces of a state of rest or balance occurs. Causing a equal balance between powers and influences. This can be where reactants and products in a chemical are in concentration to have no further tendency to change.
  3. the positive carbon is attached to three alkyl groups. It the most stable.
  4. configuration inversion observed during Sn2 reaction of a substrate in which the carbon containing the leaving group is chiral
  5. This term refers to an object or molecule having lack of symmetry or not possessing symmetry at all.
  6. A unimolecular reaction occurs when a molecule rearranges itself to produce one or more products.
  7. Energy is transferred to or from the atmosphere. This is a reaction that has an overall standard enthalpy change that is ΔH⚬ which is negative. This reaction releases heat.
  8. In chemistry this is known as a chemical reaction one function group in a compound is replaced by another function group. This reaction is significant in organic chemistry.
  9. An atom or molecule which seeks a positive centre in a chemical reaction. An example being the nucleus of a atom. Containing an electron pair which is available to donate for bonding.
  10. This type reaction refer to chemicals that combine, which consist of two molecules. The reaction is considered to be either reversible or irreversible. Involving two chemical distinct molecules or two identical molecules.
  11. the stabilising interaction that occurs from the interaction of sigma bonds in C-H and C-C with either empty or partially filled p-orbitals which increases the stability of the system
Down
  1. one structural isomer is produced when other isomers are also possible. Happens due to stability.
  2. An empirical rule for predicting the favoured alkene products in elimination reactions.
  3. involving a single molecule
  4. when two or more reactants join together to make a product without losing any atoms present in the reactants.
  5. a 50:50 mix of retention and
  6. A reaction which occurs by a free radical mechanism and results in the substitution of one or more of the atoms or groups present in the substrate by different atoms or groups.
  7. A reactant that accepts a pair of electrons so it can Make A New Covalent Bond.
  8. when two substituents are taken away from a molecule in a one or two step mechanism.
  9. This refers to the minimum energy that is needed for a reaction to occur. This then means that the reactant molecules have enough kinetic energy to collide successfully and also to overcome any repulsion that may be caused by outer electrons.
  10. the process of reversing the configuration of a chiral compound, referred to as ‘_____ of chemistry’
  11. when the carbon skeleton of one molecule is arranged differently to give a structural isomer of the molecule.
  12. process that favours bond formation at a particular atom over other atoms
  13. Any process with an increase in the enthalpy H of the system. In such a process, a closed system usually absorbs thermal energy from its surroundings, which is heat transfer into the system.
  14. This refers to the sum of the Internal energy (U) and the pressure and volume (PV) product . The equation can be written as

25 Clues: involving a single molecule • a 50:50 mix of retention and • process that favours bond formation at a particular atom over other atoms • the positive carbon is attached to three alkyl groups. It the most stable. • A reactant that accepts a pair of electrons so it can Make A New Covalent Bond. • ...

Fun Learning 2013-09-28

Fun Learning crossword puzzle
Across
  1. reaction: Are changes in the structure of molecules
  2. number: The degree of oxidation of an atom or ion.
  3. Substance that is formed as the result of a chemical reaction.
  4. The force which holds atoms together
  5. Are the building blocks for all matter.
Down
  1. Is a symbolic representation of a chemical reaction.
  2. table: Shows element symbols, atomic numbers.
  3. Numbers and symbols that show how to work something out.
  4. A substance formed from two or more elements
  5. Are the general term used to describe pieces of matter.

10 Clues: The force which holds atoms together • Are the building blocks for all matter. • A substance formed from two or more elements • table: Shows element symbols, atomic numbers. • number: The degree of oxidation of an atom or ion. • reaction: Are changes in the structure of molecules • Is a symbolic representation of a chemical reaction. • ...

Ch. 6 & 7 Vocab. 2024-04-02

Ch. 6 & 7 Vocab. crossword puzzle
Across
  1. The force that holds atoms or ions together as a unit
  2. An ion with a positive charge
  3. The force that holds cations and anions together
  4. A substance that undergoes change in a chemical reaction
  5. The attraction between a metal cation and the shared electrons that surround it
  6. A neutral group of atoms that are joined together by one or more covalent bonds
  7. A representation of a chemical reaction in which the reactants and products are expressed as formulas
Down
  1. An ion with a negative charge
  2. A chemical bond in which two atoms share a pair of valence electrons
  3. Numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
  4. Notation that shows what elements a compound contains and the ratio of the atoms or ions of these elements in the compound
  5. A diagram of an atom, ion or molecule in which each dot represents a valence electron
  6. New substances formed as a result of a chemical reaction
  7. An atom or group of atoms that has a positive or negative charge
  8. A mixture of two or more elements, at least one of which is a metal, that has the characteristic properties of a metal

15 Clues: An ion with a negative charge • An ion with a positive charge • The force that holds cations and anions together • The force that holds atoms or ions together as a unit • New substances formed as a result of a chemical reaction • A substance that undergoes change in a chemical reaction • An atom or group of atoms that has a positive or negative charge • ...

Chemical Reactions 2015-11-28

Chemical Reactions crossword puzzle
Across
  1. When magnesium is burnt is air it emits energy as a bright ........
  2. When electricity is passed through water the gases released are hydrogen and .........
  3. The chemicals required for the reaction
  4. The name of the gas released when metals react with acid
  5. When electricity is passed through water, the reaction is known as .............
  6. A very reactive metal that explodes when placed in water
  7. The number of atoms in water
  8. These reactions do not form new substances
  9. The name of the process converting vapour into liquid form
  10. Reactions that burn fuels and oxygen to generate heat
  11. These reactions make new substances
  12. These reactions take in heat
  13. The opposite to an acid
  14. A reaction forming a sludge from two soluble solutions
  15. The name of the process converting water into gas
  16. The name of the main gas used to fuel bunsen burners
Down
  1. The chemicals formed after the reaction
  2. When magnesium is burnt in air, it forms magnesium .......
  3. These reactions generate heat
  4. dioxide The name of the gas formed when an acid reacts with a carbonate is known as …………. dioxide
  5. The name of a reaction that forms a gas
  6. The name of a chemical that contains much energy
  7. This type of reaction breaks down big molecules into smaller ones
  8. When small molecules or atoms are combined to make bigger molecules
  9. A blue soluble salt known as copper ...........
  10. Shells and marble are made of ......... carbonate
  11. The chemist's heat source
  12. My official name is dihydrogen oxide
  13. This is often released in exothermic reactions

29 Clues: The opposite to an acid • The chemist's heat source • The number of atoms in water • These reactions take in heat • These reactions generate heat • These reactions make new substances • My official name is dihydrogen oxide • The chemicals formed after the reaction • The chemicals required for the reaction • The name of a reaction that forms a gas • ...

Thermochemistry Vocabulary 2023-02-01

Thermochemistry Vocabulary crossword puzzle
Across
  1. The si unit of energy and work
  2. You use this when you do something.
  3. An energy of motion.
  4. 6.0 kJ/mol
  5. What energy is stored in chemical bonds?
  6. The amount of kinetic energy particles measured in matter
  7. What's the law that states, "energy cannot be created or destroyed only transferred"
  8. What's the study of energy during chemical reactions?
  9. The change in enthalpy that occurs during a reaction.
Down
  1. the amount of heat needed to raise the temperature of 1 gram of a substance 1 degree Celsius
  2. Units of energy usually obtained by food
  3. The release of heat
  4. 40.7 kJ/mol
  5. A form of mechanical energy due to its position or condition.
  6. The absorption of heat
  7. The change in enthalpy of a
  8. used to measure the amount of heat in a chemical reaction
  9. The amount of thermal energy in a substance.

18 Clues: 6.0 kJ/mol • 40.7 kJ/mol • The release of heat • An energy of motion. • The absorption of heat • The change in enthalpy of a • The si unit of energy and work • You use this when you do something. • Units of energy usually obtained by food • What energy is stored in chemical bonds? • The amount of thermal energy in a substance. • ...

Chapter 17 Thermochemistry 2022-05-05

Chapter 17 Thermochemistry crossword puzzle
Across
  1. absorbs heat from the surroundings
  2. the heat absorbed by one mole of a solid substance as it melts to a liquid at a constant temperature
  3. the heat lost when one mole of a liquid solidifies at a constant temperature
  4. one that releases heat to its surroundings
  5. the heat of reaction for the complete burning of one mole of a substance
  6. include everything else in the universe
  7. the heat content of a system at constant pressure
Down
  1. the insulated device used to measure the absorption or release of heat in chemical or physical processes
  2. the amount of heat necessary to vaporize one mole of a given liquid
  3. states that if you add two or more thermochemical equations to give a final equation, then you can also add the heats of reaction to give the final heat of reaction
  4. a chemical equation that includes the enthalpy change
  5. the energy stored in the chemical bonds of a substance
  6. represented by q, is energy that transfers from one object to another because of a temperature difference between them
  7. the enthalpy change for the chemical equation exactly as it is written
  8. the precise measurement of the heat flow into or out of a system for chemical and physical processes
  9. the change in enthalpy that accompanies the formation of one mole of a compound from its elements with all substances in their standard states at 25 degrees Celsius
  10. the enthalpy change caused by dissolution of one mole of a substance
  11. the amount of heat released when 1 mol of vapor condenses at the normal boiling point
  12. the study of energy changes that occur during chemical reactions and changes in state
  13. the amount of heat it takes to raise the temperature of 1g of the substance 1 degree Celsius
  14. the amount of heat needed to increase the temperature of an object exactly 1 degree Celsius
  15. the part of the universe on which you focus your attention

22 Clues: absorbs heat from the surroundings • include everything else in the universe • one that releases heat to its surroundings • the heat content of a system at constant pressure • a chemical equation that includes the enthalpy change • the energy stored in the chemical bonds of a substance • the part of the universe on which you focus your attention • ...

Chemical Reactions 2025-05-12

Chemical Reactions crossword puzzle
Across
  1. A substance that is made up of two or more different elements chemically bonded together.
  2. A reaction where a substance combines with oxygen, often releasing energy.
  3. A substance made of only one type of atom.
  4. A reaction that absorbs energy from the surroundings.
  5. A reaction that releases energy in the form of heat.
Down
  1. A reaction where two or more substances combine to form a new compound.
  2. A substance that is produced in a chemical reaction.
  3. A substance that is present at the start of a chemical reaction.
  4. replacement A reaction where one element replaces another in a compound.
  5. A reaction where a compound breaks down into two or more simpler substances.

10 Clues: A substance made of only one type of atom. • A substance that is produced in a chemical reaction. • A reaction that releases energy in the form of heat. • A reaction that absorbs energy from the surroundings. • A substance that is present at the start of a chemical reaction. • A reaction where two or more substances combine to form a new compound. • ...

Perfect 10 2023-03-01

Perfect 10 crossword puzzle
Across
  1. substance that is present at the end of a chemical reaction
  2. a substance which slows down or prevents a particular chemical reaction
  3. the action or process of replacing someone or something
  4. occurs when two or more reactants combine to form a single product
Down
  1. a numerical or constant quantity placed before and multiplying the variable
  2. a substance that takes part in and undergoes change during a reaction.
  3. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
  4. cause (a substance) to be deposited in solid form from a solution
  5. the state or process of rotting

9 Clues: the state or process of rotting • the action or process of replacing someone or something • substance that is present at the end of a chemical reaction • cause (a substance) to be deposited in solid form from a solution • occurs when two or more reactants combine to form a single product • a substance that takes part in and undergoes change during a reaction. • ...

Year 8 Chemistry Revision 2026-01-07

Year 8 Chemistry Revision crossword puzzle
Across
  1. represented by the symbol C
  2. another word for burning
  3. represented by the symbol O
  4. easily bursts into flames
  5. something that damages the environment or the organisms that live there
  6. contains two or more elements chemically bonded together
  7. a form of energy that can power a light
  8. smallest particle of matter
  9. a substance that reacts in a chemical reaction
Down
  1. a set of two or more atoms joined together
  2. a state of matter without a fixed shape or volume
  3. a device used to measure temperature
  4. a substance that contains a store of chemical or nuclear energy that can be easily transferred
  5. a state of matter with a fixed shape and volume
  6. reacting with oxygen
  7. a state of matter with a fixed volume but no fixed shape
  8. a substance that is formed in a chemical reaction
  9. a substance made of only one type of atom

18 Clues: reacting with oxygen • another word for burning • easily bursts into flames • represented by the symbol C • represented by the symbol O • smallest particle of matter • a device used to measure temperature • a form of energy that can power a light • a substance made of only one type of atom • a set of two or more atoms joined together • ...

Chapter 6+7 2024-04-02

Chapter 6+7 crossword puzzle
Across
  1. - a diagram of an atom, ion or molecule in which each dot represents a valence electron
  2. - an ion with a negative charge
  3. - a neutral group of atoms that are joined together by one or more covalent bonds
  4. - an atom or group of atoms that has a positive or negative charge
  5. - a chemical bond in which two atoms share a pair of valence electrons
  6. - notation that shows what elements a compound contains and the ratio of the atoms or ions of these elements in the compound
  7. - the force that holds cations and anions together
Down
  1. - a mixture of two or more elements, at least one of which is a metal, that has the characteristic properties of a metal
  2. - a substance that undergoes change in a chemical reaction
  3. - the attraction between a metal cation and the shared electrons that surround it
  4. - numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
  5. - an ion with a positive charge
  6. - the force that holds atoms or ions together as a unit
  7. - a representation of a chemical reaction in which the reactants and products are expressed as formulas
  8. - new substances formed as a result of a chemical reaction

15 Clues: - an ion with a positive charge • - an ion with a negative charge • - the force that holds cations and anions together • - the force that holds atoms or ions together as a unit • - a substance that undergoes change in a chemical reaction • - new substances formed as a result of a chemical reaction • - an atom or group of atoms that has a positive or negative charge • ...

Solve the crossword puzzle 2022-08-10

Solve the crossword puzzle crossword puzzle
Across
  1. use the instant cold pack to reduce the ____________ of wounds.
  2. Chemical reaction that releases heat into the surroundings
  3. Exothermic reaction that occur in animals
  4. cramps/ use instant hot pack to relieve _________
  5. Study of heat change when chemical reactions take place
Down
  1. Chemical reaction that absorbs heat from the surrounding
  2. /A device that measures change in temperature during exothermic and endothermic reaction
  3. Endothermic reaction that occurs in plants

8 Clues: Exothermic reaction that occur in animals • Endothermic reaction that occurs in plants • cramps/ use instant hot pack to relieve _________ • Study of heat change when chemical reactions take place • Chemical reaction that absorbs heat from the surrounding • Chemical reaction that releases heat into the surroundings • ...

Chemistry of Life 2024-05-31

Chemistry of Life crossword puzzle
Across
  1. acid Organic compounds that combine to form proteins.
  2. A substance that increases the rate of a chemical reaction without undergoing permanent chemical change.
  3. A large molecule composed of many repeated subunits (monomers).
  4. The substance on which an enzyme acts.
  5. acid Biopolymers essential for all known forms of life (DNA and RNA).
  6. A protein that acts as a catalyst to accelerate a chemical reaction.
  7. A group of naturally occurring molecules that include fats, waxes, and certain vitamins.
Down
  1. A large complex molecule, such as proteins, nucleic acids, carbohydrates, and lipids.
  2. A molecule composed of amino acids joined by peptide bonds.
  3. Organic compounds made up of carbon, hydrogen, and oxygen that provide energy.
  4. A molecule that can bind to other identical molecules to form a polymer.
  5. site The region on an enzyme where substrate molecules bind and undergo a chemical reaction.

12 Clues: The substance on which an enzyme acts. • acid Organic compounds that combine to form proteins. • A molecule composed of amino acids joined by peptide bonds. • A large molecule composed of many repeated subunits (monomers). • A protein that acts as a catalyst to accelerate a chemical reaction. • ...

Unit 3 Vocabulary 2022-04-27

Unit 3 Vocabulary crossword puzzle
Across
  1. A rock formed by the deposition, compaction and cementation
  2. All substances.
  3. The process by which cells turn nutrients into useful energy
  4. In the absence of oxygen
  5. Sugar produced during photosynthesis
  6. Change in textural, shape, temperature or phase
  7. Wearing away of rock
  8. Rocks from magma
  9. Sunlight, water and carbon dioxide are turned into glucose, and oxygen
  10. Result of a chemical reaction
Down
  1. Snow or ice become water vapor without passing through the liquid phase
  2. Two or more atoms linked together
  3. In the presents of oxygen
  4. The capacity to do work
  5. Any rock and become another rock
  6. Heat and pressure in the Earth's crust
  7. the basic unit of an element
  8. Substances participating in a reaction.
  9. Breaking bonds between atoms.

19 Clues: All substances. • Rocks from magma • Wearing away of rock • The capacity to do work • In the absence of oxygen • In the presents of oxygen • the basic unit of an element • Breaking bonds between atoms. • Result of a chemical reaction • Any rock and become another rock • Two or more atoms linked together • Sugar produced during photosynthesis • Heat and pressure in the Earth's crust • ...

Science Vocab 2025-02-06

Science Vocab crossword puzzle
Across
  1. an organism that feeds on other organisms
  2. energy of motion
  3. chemical formuals and symbols written to represent a reaction
  4. anything that has volume and mass
  5. positively charged particle in an atom
  6. the average energy of the particles in something
  7. a number placed in front of a chemical symbol to balance a chemical equation
  8. a substance produced during a chemical reaction
  9. smallest particle of matter
  10. energy transferred between two objects of different temperatures
  11. distinct forms of matter; solid, liquid, gas
  12. an organism that makes its own food
  13. negatively charged particle in an atom
  14. state of matter when atoms flow and have a definite volume but no definite shape
  15. particle in an atom with no charge
  16. simplest unit of a chemical compound, formed when two or more atoms bond together
  17. a measure of how much matter is in something
  18. nonliving things in an ecosystem
  19. characteristics that can only be observed during a chemical change
  20. state of matter when atoms spread out freely and have no definite shape or volume
  21. all living things in an ecosystem
Down
  1. a single substance with definite composition and properties
  2. when substances interact to form new substances
  3. resources that can be replaced by natural processes within a lifetime
  4. the total energy of the particles in something
  5. characteristics that can be observed without changing the substance
  6. organisms fighting to get the same resource
  7. a substance that takes part in and undergoes change during a reaction
  8. resources resources that are limited and cannot be replaced in lifetime
  9. building blocks of all matter; made up of one type of atom
  10. all of the biotic and abiotic factors in an area, and the interactions among them
  11. state of matter when atoms are packed closely together
  12. to prevent the loss of something
  13. all the members of one species living in a certain area
  14. states that matter cannot be created nor destroyed

35 Clues: energy of motion • smallest particle of matter • to prevent the loss of something • nonliving things in an ecosystem • anything that has volume and mass • all living things in an ecosystem • particle in an atom with no charge • an organism that makes its own food • positively charged particle in an atom • negatively charged particle in an atom • ...

Chemisty 2023-10-29

Chemisty crossword puzzle
Across
  1. How something may look
  2. bonding the formation of a bond between two or more atoms,
  3. a substance made by mixing other substances together.
  4. point the temperature at which a given solid will melt.
  5. a substance formed from the combination of two or more metals
  6. The process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.
  7. occurs in the cells of all living organisms. It reacts oxygen and sugar to produce carbon dioxide and water
  8. two or more elements that have chemically joined together.
  9. It is shiny or dull
  10. conductivity it allows electricity to flow through it
  11. A hard solid that normally melts at high temperatures.
  12. the quality of being pliable and flexible
  13. occurs when bonds are broken and/or formed between molecules or atoms
  14. A substance where atoms are spread out
  15. A substance where atoms are less compact
  16. a chemical process in which substances act mutually on each other and are changed into different substances, or one substance changes into other substances.
Down
  1. the smallest particle of a chemical element that can exist.
  2. a slow chemical reaction between metals and oxygen to produce a metal oxide
  3. a chemical reaction with a Hydrocarbon and Oxygen
  4. anything that takes up space and can be weighed
  5. the quality or state of being strong
  6. the degree of compactness of a substance.
  7. a group of atoms bonded together
  8. the branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions,
  9. an essential or characteristic part of something abstract.
  10. A hard substance with compact atoms
  11. You can flatten it with a hammer into a thin sheet or squish.
  12. the condition of the system at a given time
  13. reaction he processes by which chemicals interact to form new chemicals with different compositions
  14. a chemical substance, usually a liquid, which contains hydrogen and can react with other substances to form salts.

30 Clues: It is shiny or dull • How something may look • a group of atoms bonded together • A hard substance with compact atoms • the quality or state of being strong • A substance where atoms are spread out • A substance where atoms are less compact • the degree of compactness of a substance. • the quality of being pliable and flexible • the condition of the system at a given time • ...

Photosynthesis/Cellular Respiration TChapman 2021-09-16

Photosynthesis/Cellular Respiration TChapman crossword puzzle
Across
  1. reactant in photosynthesis also a waste product of aerobic respiration
  2. The end result of a chemical reaction
  3. A necessary ingredient for a chemical reaction
  4. A product of photosynthesis containing the stored chemical energy. A reactant of all types of respiration
  5. The stored chemical energy produced by respiration
  6. dioxide product of respiration
  7. The primary pigment contained in the grana for photosynthesis
  8. reactant of photosynthesis
  9. The process in which light energy is used to convert Carbon dioxide and Water into Glucose and Oxygen
  10. product of photosynthesis
  11. A waste product of anaerobic respiration that builds up and causes fatigue
Down
  1. The process in which sugar and oxygen react to produce Carbon dioxide, Water, and ATP (energy
  2. reactant in respiration
  3. the organelle that performs photosynthesis
  4. Without Oxygen
  5. The first step in all types of respiration. Occurs in the cytoplasm of the cell
  6. requires oxygen
  7. The energy source for photosynthesis
  8. The organelles that performs aerobic respiration. Powerhouse of the cell
  9. A waste product of photosynthesis. A reactant of aerobic respiration

20 Clues: Without Oxygen • requires oxygen • reactant in respiration • product of photosynthesis • reactant of photosynthesis • dioxide product of respiration • The energy source for photosynthesis • The end result of a chemical reaction • the organelle that performs photosynthesis • A necessary ingredient for a chemical reaction • The stored chemical energy produced by respiration • ...

TRIVIA ABOUT PHYSICAL AND CHEMICAL CHANGE 2024-11-11

TRIVIA ABOUT PHYSICAL AND CHEMICAL CHANGE crossword puzzle
Across
  1. A physical state change often demonstrated in ice hockey games to maintain a solid playing surface.
  2. Flame: The longest burning man-made flame located near a waterfall in New York.
  3. The process by which a solid changes directly to a gas without becoming liquid first.
  4. A form of light and heat energy release, often from the Olympic flame, which is continuously burning.
  5. Soda: This common household item reacts with vinegar to form a chemical reaction that produces gas bubbles.
  6. Gormley created a life-sized sculpture out of this solid state of water, demonstrating its melting.
  7. A product of a chemical reaction that fuels fireworks and explosions.
Down
  1. The state of matter involved in the largest ice sculpture, which kept its composition as H₂O
  2. When sand is packed and shaped, but its chemical composition remains the same.
  3. A substance made up of hydrogen and oxygen that can change into gas through evaporation.
  4. The country where the largest fireworks display took place in 2016 with over 800,000 fireworks.
  5. The country where a massive sandcastle was built, reaching nearly 58 feet in height.
  6. Treatment: Created by 13,688 students worldwide, this largest chemistry experiment focused on a process essential for clean drinking water.
  7. A strong, bright emission of light and heat from a reaction in fireworks
  8. V: NASA’s powerful rocket engine, known for its impressive chemical reaction.

15 Clues: A product of a chemical reaction that fuels fireworks and explosions. • A strong, bright emission of light and heat from a reaction in fireworks • V: NASA’s powerful rocket engine, known for its impressive chemical reaction. • When sand is packed and shaped, but its chemical composition remains the same. • ...

CHEMICAL REACTIONS AND EQUATIONS 2022-07-18

CHEMICAL REACTIONS AND EQUATIONS crossword puzzle
Across
  1. Oxidation of fats and oils.
  2. Insoluble solid formed due to exchange of ions.
  3. Process in which metals are eaten up gradually by the action of air & moisture on their surface.
  4. Substances take part in chemical reaction.
  5. Hydrated Ferric Oxide
  6. Substance that is added to food containing fats and oils to prevent spoilage of food.
  7. Reaction in which an element displaces the other
  8. A type of decomposition reaction
Down
  1. Which gas is evolved at cathode during electrolysis of Water?
  2. Reaction that is used in black and white photography.
  3. Removal of hydrogen
  4. Calcium Hydroxide
  5. Dissolving sugar is an example of ___
  6. Respiration is an example of ____ reaction.
  7. Reaction in which oxidation and reduction takes place simultaneously.

15 Clues: Calcium Hydroxide • Removal of hydrogen • Hydrated Ferric Oxide • Oxidation of fats and oils. • A type of decomposition reaction • Dissolving sugar is an example of ___ • Substances take part in chemical reaction. • Respiration is an example of ____ reaction. • Insoluble solid formed due to exchange of ions. • Reaction in which an element displaces the other • ...

Chemistry Review 2025-02-12

Chemistry Review crossword puzzle
Across
  1. the smallest amount of an individual element you can have
  2. this property of a substance tells us whether it is a solid or liquid at room temperature
  3. during this type of change, the size and shape of something is changed
  4. these are subatomic particles found in the nucleus that have NO electrical charge
  5. the smallest amount of a compound is one
  6. during this type of change a completely new substance is formed
  7. the substances that go into a chemical reaction on the left side of a chemical equation
  8. this number tells us the number of protons plus the number of neutrons
  9. this property of a substance tells us whether it is a liquid or a gas at room temperature
  10. elements in the same group/family have similar chemical and physical
  11. a tool you can use to separate Iron from other substances
Down
  1. these are subatomic particles found outside the nucleus of an atom and has a negative charge
  2. what is produced in a chemical reaction and found on the right side of a chemical reaction
  3. Salt water is this type of mixture because it looks the same throughout
  4. pure individual substances which is the ingredients to everything in the universe
  5. this is the universal solvent because it is the base of almost every liquid solution
  6. salad is this type of mixture because you can see the individual parts
  7. these types of substances are good conductors of heat and electricity
  8. two or more different elements chemically combined
  9. a mixture of metals melted into each other
  10. in group eight we have a collection of very unreactive gases like Neon which we call the
  11. these are subatomic particles found inside the nucleus of an atom and have a positive charge
  12. this number on the P.T.O.E tells us the number of protons and electrons in an atom

23 Clues: the smallest amount of a compound is one • a mixture of metals melted into each other • two or more different elements chemically combined • the smallest amount of an individual element you can have • a tool you can use to separate Iron from other substances • during this type of change a completely new substance is formed • ...

Chemistry Crossword 2025-04-15

Chemistry Crossword crossword puzzle
Across
  1. Mixture in which one substance is evenly mixed with another substance
  2. a substance containing only one type of atom;it cannot be broken down into another substance, in a chemical reaction
  3. an insoluble chemical produced during a chemical reaction
  4. Use of chemical to make the particles in a suspension clump together
  5. Suspension of two liquids
  6. Substance in which solute dissolves
  7. suspension in which the particles are permanently suspended
  8. A substance that can be dissolved in a solvent to make a solution
  9. Is a material formed by chemically bonding two or more chemical elements
  10. Neither acidic or basic
  11. A reaction with acid that gives water as well as salt
  12. Solution form when a solute dissolves in a solvent
Down
  1. Two or more substances that have been mixed together but not chemically combined
  2. A charge atoms or group of atoms formed by the gain or loss of one or more electrons
  3. Able to dissolve
  4. Smallest part of a substance that has all the properties of the substance matter
  5. Term for a weak solution
  6. A measure of how fast or slow something is
  7. Material that blocks light
  8. Substance that react with metals to release hydrogen
  9. Substance formed when metals react with water
  10. Term for a strong solution
  11. Metals that have the physical property of being softer than most metals, light than most metals (low density), and low melting points
  12. cloudy mixture of two or more substances that settle on standing
  13. Go into solution
  14. Negative ion is made up of one atom of hydrogen and one atom of oxygen
  15. Paper that can be used to identify an acid or base
  16. Not able to dissolve
  17. Chemical formula NaCL
  18. elements are made up atoms, which contains protons, neutrons, and electrons
  19. Substance that changes color in acids and bases

31 Clues: Able to dissolve • Go into solution • Not able to dissolve • Chemical formula NaCL • Neither acidic or basic • Term for a weak solution • Suspension of two liquids • Material that blocks light • Term for a strong solution • Substance in which solute dissolves • A measure of how fast or slow something is • Substance formed when metals react with water • ...

Chapter 16 2014-12-14

Chapter 16 crossword puzzle
Across
  1. A substance that slows down a chemical reation.
  2. A substance formed as a result of a chemical change; substance to the right of a yield sign in an equation.
  3. Insoluble substnace that crystallizes out of a solution.
  4. The sum of the average atomic masses of the atoms in a molecule.
  5. A chemical change in which a substance breaks down or decomposes into other substances.
  6. The number places in front of a symbol or formula; used in balancing chemical equations.
  7. Energy is released or given off.
  8. Sum of the average atomic mass of the atoms or ion present in the formula of a compound.
  9. Energy is taken in or absorbed.
  10. The positive part of one compound unites with the negative part of another compound.
Down
  1. A chemical change in which two or more elements or compounds unite to form a compound.
  2. One element displaces another from a compound.
  3. A shorthand description of a chemical reaction; tells the reactants and products and their ratios.
  4. An inhibitor; slows down decay by retarding the processes that cause decay.
  5. A substance that undergoes a chemical changel substance to the left of a yield sign in an equation.
  6. A substance that increases the rate of a chemical reaction without being permanently changed itself.

16 Clues: Energy is taken in or absorbed. • Energy is released or given off. • One element displaces another from a compound. • A substance that slows down a chemical reation. • Insoluble substnace that crystallizes out of a solution. • The sum of the average atomic masses of the atoms in a molecule. • ...

Christmas Chemistry Crossword Puzzle 2025-12-08

Christmas Chemistry Crossword Puzzle crossword puzzle
Across
  1. ^The starting materials in a chemical reaction, written on the left side of the arrow
  2. ^A rapid reaction between a substance and an oxidant, usually oxygen, producing heat and light
  3. ^Reaction where one element swaps places with another element in a compound; sometimes called single displacement
  4. ^Reaction where a single compound breaks down into two or more simpler substances
  5. ^The substances that are formed as a result of a chemical change, written on the right side of the arrow
Down
  1. ^Reaction where two ionic compounds exchange ions to form two new compounds; often forms a precipitate
  2. ^Reaction where two or more substances combine to form a more complex substance
  3. ^A chemical equation that shows the same number of atoms for each element on both sides of the arrow
  4. ^An insoluble solid that separates from a solution during a double replacement reaction
  5. ^Uses symbols and subscripts to show the elements and number of atoms in a compound

10 Clues: ^Reaction where two or more substances combine to form a more complex substance • ^Reaction where a single compound breaks down into two or more simpler substances • ^Uses symbols and subscripts to show the elements and number of atoms in a compound • ^The starting materials in a chemical reaction, written on the left side of the arrow • ...

11 - Physical v2021-01-26 2021-01-26

11 - Physical v2021-01-26 crossword puzzle
Across
  1. A substance formed in a chemical reaction.
  2. The total area of an object, for example the area of a skydiver's body facing the air as they fall, or the area of a car tyre that touches the road.
  3. A substance that changes the rate of a chemical reaction without being changed by the reaction itself.
  4. A protein which catalyses or speeds up a chemical reaction.
  5. The amount of matter an object contains. Measured in kilograms (kg) or grams (g).
Down
  1. Tells us how much of a substance is dissolved in water. The higher the value, the more particles of the substance are present.
  2. A collision between reactant particles that has enough energy for a reaction to happen.
  3. Another word for steepness. On a graph, defined as being the change in the 'y' value divided by the change in the 'x' value. It defines how steep a line is.
  4. Chart showing how the energy of reactants and products changes during a reaction.
  5. A substance that reacts together with another substance to form products during a chemical reaction.

10 Clues: A substance formed in a chemical reaction. • A protein which catalyses or speeds up a chemical reaction. • Chart showing how the energy of reactants and products changes during a reaction. • The amount of matter an object contains. Measured in kilograms (kg) or grams (g). • A collision between reactant particles that has enough energy for a reaction to happen. • ...

Chem 2022-11-17

Chem crossword puzzle
Across
  1. A charged atom.
  2. Molecules that cause a chemical reaction when combined resulting in products.
  3. A molcule formed between two non-metal atoms.
  4. The product of two or more reactants.
  5. A molecule consisting of more than one type of atom.
  6. A molcule formed between a non-metal atom and a metal atom.
  7. when one reactant brekas down into two or more products.
  8. When two compounds exchange ions to form two new products with the same ions.
Down
  1. When one element replaces another in a compound resulting in a different product.
  2. The number placed in front of atoms in order to balance the equation
  3. an molcule that needs two atoms of the same element.
  4. The number that tells you the amount of atoms of a single element are in the molecule.
  5. A chemical reaction in which a substance burns when added to oxygen.
  6. The result of a chemical reaction.

14 Clues: A charged atom. • The result of a chemical reaction. • The product of two or more reactants. • A molcule formed between two non-metal atoms. • an molcule that needs two atoms of the same element. • A molecule consisting of more than one type of atom. • when one reactant brekas down into two or more products. • A molcule formed between a non-metal atom and a metal atom. • ...

Chemistry 2023-01-10

Chemistry crossword puzzle
Across
  1. reaction, One compound breaks down into two or more simpler compounds or elements.
  2. formula, A group of letters and subscript numbers that represent the make-up of chemical compounds.
  3. An atom or a group of atoms that has an electrical charge either positive or negative.
  4. displacement reaction, one element takes the place of another element in a compound.
Down
  1. Reduced in concentration by being mixed with a liquid such as water. (H20)
  2. reaction, Two or more reactants combine to produce a new product.
  3. New substances produced in a chemical reaction.
  4. reactions, A change in matter that produces new substances with new properties.
  5. Substance that react together in a chemical reaction.
  6. displacement reaction, The metal ions of two different compounds exchange places.

10 Clues: New substances produced in a chemical reaction. • Substance that react together in a chemical reaction. • reaction, Two or more reactants combine to produce a new product. • Reduced in concentration by being mixed with a liquid such as water. (H20) • reactions, A change in matter that produces new substances with new properties. • ...

Christmas Chemistry Crossword 2025-12-09

Christmas Chemistry Crossword crossword puzzle
Across
  1. ^The starting materials in a chemical reaction, written on the left side of the arrow
  2. ^A rapid reaction between a substance and an oxidant, usually oxygen, producing heat and light
  3. ^Reaction where one element swaps places with another element in a compound; sometimes called single displacement
  4. ^Reaction where a single compound breaks down into two or more simpler substances
  5. ^The substances that are formed as a result of a chemical change, written on the right side of the arrow
Down
  1. ^Reaction where two ionic compounds exchange ions to form two new compounds; often forms a precipitate
  2. ^Reaction where two or more substances combine to form a more complex substance
  3. ^A chemical equation that shows the same number of atoms for each element on both sides of the arrow
  4. ^An insoluble solid that separates from a solution during a double replacement reaction
  5. ^Uses symbols and subscripts to show the elements and number of atoms in a compound

10 Clues: ^Reaction where two or more substances combine to form a more complex substance • ^Reaction where a single compound breaks down into two or more simpler substances • ^Uses symbols and subscripts to show the elements and number of atoms in a compound • ^The starting materials in a chemical reaction, written on the left side of the arrow • ...

Types of Reactions 2025-04-27

Types of Reactions crossword puzzle
Across
  1. Most reactive metal in the reactivity series
  2. Colour of CuSO4
  3. Type of reaction which produces a precipitate
  4. Colour of the precipitate formed in the D.D reaction of Lead Nitrate and Sodium Sulphate
  5. Reaction where heat is absorbed
  6. Least reactive metal in the reactivity series
  7. Chemical formula for Marble
Down
  1. 2 or more substances combine to form a single substance
  2. Type of Decomposition reaction used to break down AgCl
  3. AB→A+B
  4. Addition of Oxygen or removal of Hydrogen from a substance
  5. Reaction where heat is released
  6. CaO is also known as _____
  7. Addition of Hydrogen or removal of Oxygen from a substance
  8. Reaction in which Oxidation and Reduction take place simultaneously

15 Clues: AB→A+B • Colour of CuSO4 • CaO is also known as _____ • Chemical formula for Marble • Reaction where heat is released • Reaction where heat is absorbed • Most reactive metal in the reactivity series • Type of reaction which produces a precipitate • Least reactive metal in the reactivity series • Type of Decomposition reaction used to break down AgCl • ...

Redox Crossword Room1 2021-08-23

Redox Crossword Room1 crossword puzzle
Across
  1. positively charged particles
  2. an atom that has a charge
  3. negatively charged particles
  4. gain of electrons
  5. the reaction between iron(III) and aluminium
Down
  1. combination of reduction and oxidation
  2. another name for burning
  3. loss of electron
  4. increases the rate of reaction
  5. non-metal elements from group 7
  6. absorbs energy
  7. releases energy
  8. substance resulting from a chemical reaction
  9. the transfer of electrons
  10. oxidation is loss reduction is gain

15 Clues: absorbs energy • releases energy • loss of electron • gain of electrons • another name for burning • an atom that has a charge • the transfer of electrons • positively charged particles • negatively charged particles • increases the rate of reaction • non-metal elements from group 7 • oxidation is loss reduction is gain • combination of reduction and oxidation • ...

Unit 2 Chemistry of Life Review 2023-10-24

Unit 2 Chemistry of Life Review crossword puzzle
Across
  1. required to start a chemical reaction
  2. water is able to move up through thin tubes
  3. spontaneous type of reaction
  4. monomer of proteins
  5. substance doing the dissolving
  6. monomer of nucleic acids
  7. substance with low concentration of H+ ions
  8. water molecules stick to themselves
  9. monomer of carbohydrates
  10. this + fatty acid make up the monomer of lipids
  11. differ in number of neutrons
  12. type of enzyme reaction in which molecules are broken apart
  13. form bones/muscles and transports materials
  14. fill outermost energy level
  15. water molecules are attracted to other molecules
  16. type of bond where two slightly charged molecules are attracted to each other
  17. type of enzyme reaction in which molecules are joined together
  18. carbon has this many valence electrons; allows it to form many bonds
  19. positively charged
Down
  1. number of protons
  2. speeds up the rate of reaction
  3. number of protons + neutrons
  4. provide short term energy
  5. created when one substance is dissolved in another
  6. proteins that are catalysts which speed up chemical reactions by lowering activation energy
  7. water is considered to be a ____ _____ because it dissolves many solutes
  8. store genetic information
  9. substance with high concentration of H+ ions
  10. uneven distribution of charge
  11. provide long term energy storage
  12. substance being dissolved
  13. in outer energy levels; negatively charged
  14. type of bond where electrons are transferred from one atom to another
  15. two or more elements combined
  16. type of bond where electrons are shared between two atoms
  17. neutral (zero) charge
  18. non-spontaneous type of reaction

37 Clues: number of protons • positively charged • monomer of proteins • neutral (zero) charge • monomer of nucleic acids • monomer of carbohydrates • provide short term energy • store genetic information • substance being dissolved • fill outermost energy level • number of protons + neutrons • spontaneous type of reaction • differ in number of neutrons • uneven distribution of charge • ...

Space Unit 2025-05-08

Space Unit crossword puzzle
Across
  1. A very young star that has not started fusion yet. The second step in the life of a star.
  2. A compressed ball of hot gas in space.
  3. A large cloud in space where stars are formed. The first step in the life of a star.
  4. The right side of a chemical reaction. What we start with.
  5. The color of star that is the hottest.
  6. The left side of a chemical reaction. What we are making.
  7. The first planet in the solar system.
  8. The type of reaction where two things are broken apart.
  9. The type of reaction where ONE element switches places.
  10. The fourth planet in the solar system. Also known as "The Red Planet".
Down
  1. The sixth planet in the solar system. Known for its large rings
  2. The eight planet in the solar system. Named after the Roman god of the sea.
  3. A smaller object that orbits around a planet. The Earth has one.
  4. The type of reaction where TWO elements switch places.
  5. A large object moving in an orbit around a star. One example is the Earth.
  6. The end of a stars life, where it collapses into something so dense, not even light can escape it.
  7. The type of reaction where two things are combined.
  8. The fifth planet in the solar system. Also the largest.
  9. A large explosion caused when a particularly large star dies.
  10. The second planet in the solar system. Named after the roman god of beauty and love
  11. The color of star that is the coldest.

21 Clues: The first planet in the solar system. • A compressed ball of hot gas in space. • The color of star that is the hottest. • The color of star that is the coldest. • The type of reaction where two things are combined. • The type of reaction where TWO elements switch places. • The fifth planet in the solar system. Also the largest. • ...

photosythesis 2024-03-25

photosythesis crossword puzzle
Across
  1. a vascular tissue that responsible for sugar
  2. the substance which participate in chemical reaction
  3. what plants give off that we breath
  4. plant organelle that converts sunlight energy
  5. sugar
  6. a vascular tissue that transports water
Down
  1. a chemical reaction in plants
  2. the green pigment in plants
  3. the species formed from chemical reactions
  4. a clear gas that plants take in

10 Clues: sugar • the green pigment in plants • a chemical reaction in plants • a clear gas that plants take in • what plants give off that we breath • a vascular tissue that transports water • the species formed from chemical reactions • a vascular tissue that responsible for sugar • plant organelle that converts sunlight energy • the substance which participate in chemical reaction

Aromatic Chemistry 2021-10-27

Aromatic Chemistry crossword puzzle
Across
  1. Which 5-memebered heterocyclic compound is most reactive in Electrophilic aromatic substitution reactions?
  2. A group that that increases the rate of a reaction of a benzene ring and directs incoming substituent to ortho or Para position is-
  3. tetrafluoroborate-In the nitration reaction, what is the other reagent that can be used instead of nitric acid and sulphuric acid at very low temperatures?
  4. halides-Compounds that do not react with benzene without a catalyst (Lewis acid catalyst e.g., FeBr3) present.
  5. A chemical specie that forms a chemical bond by donating its pair of electrons.
  6. groups (electron withdrawing groups) dictate their substituents to which position on the benzene ring?
  7. One of the rules of aromaticity is that aromatic compounds must be what geometry-
  8. Which reduction reaction reduces a carbonyl unit to CH2 under acidic conditions?
  9. bromide- What catalyst is added to enable a reaction between a benzene ring and molecular bromine?
Down
  1. A benzene mono-substituted with NO2 causes a relatively slow reaction of the benzene ring. What substituent group is NO2?
  2. - A substituent compound or molecule that is at position 2 to the main functional group on an aromatic compound is at what position
  3. The product between nitrile and azide ion is
  4. Acid- Oxidation of alkyl benzene with Potassium permanganate give rise to?
  5. The reaction between diazonium ion and cuprous salt is called
  6. Benzene is more comfortable to undergo what type of substitution reaction
  7. -A Friedel – Craft reaction that causes a straight alkyl side chain to a benzene followed by the loss of (C=O).
  8. rule - A formulaic factor that is used to determine if a compound is aromatic
  9. isomerism Tautomerism is also known as what?

18 Clues: The product between nitrile and azide ion is • isomerism Tautomerism is also known as what? • The reaction between diazonium ion and cuprous salt is called • Benzene is more comfortable to undergo what type of substitution reaction • Acid- Oxidation of alkyl benzene with Potassium permanganate give rise to? • ...

CHANGES AROUND US 2019-06-11

CHANGES AROUND US crossword puzzle
Across
  1. a change in which a new substance is formed
  2. the energy required to start a chemical reaction
  3. some chemical changes require the presence of another substance which itself does not undergo any change
  4. the substance formed after a chemical reaction
  5. we get this when we burn something
  6. initial substances after a chemical reaction
Down
  1. a change in which no new substance is formed
  2. the increase in size of matter on heating
  3. the decrease in size of matter on cooling

9 Clues: we get this when we burn something • the increase in size of matter on heating • the decrease in size of matter on cooling • a change in which a new substance is formed • a change in which no new substance is formed • initial substances after a chemical reaction • the substance formed after a chemical reaction • the energy required to start a chemical reaction • ...

CARBON COMPOUND 2019-10-13

CARBON COMPOUND crossword puzzle
Across
  1. Alkene contains carbon-carbon ________ bond
  2. ________ are compounds with the same molecular formula but different structural formulae
  3. Main sources of hydrocarbon is coal, natural gas and ________
  4. Carboxylic Acids are ________ acid.
  5. Fermentation is the chemical process which microorganism such as yeast act on carbohydrate to produce ________ and carbon dioxide.
  6. ________ hydrocarbon produce less soot during combustion
  7. ________ are saturated hydrocarbon
  8. Halogenation is reaction between alkane and chlorine under ________
  9. unsaturated hydrocarbon decolourise brown colour of ________
  10. Vulcanization is a process whereby rubber is reacted with ________ to improved its properties
Down
  1. polymerisation is a process of combining ________ molecules together in a chemical reaction to form polymer chains
  2. This reaction is called the ________ reaction.
  3. Coagulation of latex can be prevented by adding ________ to it
  4. ________ has six carbon in a compound
  5. Alcohols are compounds in which one or more ________ atoms in an alkane have been replaced by an -OH group.
  6. Esters are produced when carboxylic acid reacts with alcohol in the presence of concentrated ________ acid as a catalyst.
  7. Alkene are held together by (Van-der ________) forces
  8. When ________ is heated and alkene and water is produced, the process is called dehydration
  9. Alcohol can be used as beverage, ________, solvent, antiseptic

19 Clues: Carboxylic Acids are ________ acid. • ________ are saturated hydrocarbon • ________ has six carbon in a compound • Alkene contains carbon-carbon ________ bond • This reaction is called the ________ reaction. • Alkene are held together by (Van-der ________) forces • ________ hydrocarbon produce less soot during combustion • ...

Chemical World 2024-03-04

Chemical World crossword puzzle
Across
  1. a mixture of two or more metals
  2. an acid that ionises completely in water
  3. exothermic reaction within cells that releases energy for the body’s use
  4. the number of particles in a given volume
  5. reaction a reaction involving an acid and a base to produce water and a salt
  6. not planned
  7. an ion that does not take part in the reaction
  8. in the presence of oxygen
  9. an acid that partially ionises (loses or gains electrons) in water
  10. to wear down a substance
  11. a biological catalyst that increases the rate of reactions in cells
Down
  1. a reaction that absorbs energy in the form of heat
  2. a compound made up of only hydrogen and carbon
  3. an insoluble product
  4. a reaction taking place in the presence of oxygen
  5. change from one form to another
  6. a reaction that involves burning in the presence of oxygen to release heat
  7. a compound made up of carbon and hydrogen
  8. a substance containing the elements carbon and oxygen
  9. to split apart into ions
  10. energy of motion
  11. distributed throughout a fluid
  12. in the absence of oxygen
  13. an exothermic reaction requiring the presence of oxygen
  14. substance that speeds up a chemical reaction
  15. a reaction that releases energy in the form of heat
  16. dissolved in water to create a solution

27 Clues: not planned • energy of motion • an insoluble product • to split apart into ions • in the absence of oxygen • to wear down a substance • in the presence of oxygen • distributed throughout a fluid • a mixture of two or more metals • change from one form to another • dissolved in water to create a solution • an acid that ionises completely in water • ...

Exo/Endo 2025-02-13

Exo/Endo crossword puzzle
Across
  1. Has definite volume but no definite shape
  2. Distinct forms of matter
  3. Take part and undergoes change during a chemical reaction
  4. Has definite volume and shape
  5. Also known as thermal energy
  6. Heat is released
Down
  1. The simplest unit of a chemical compound
  2. Has indefinite volume and shape
  3. Heat is absorbed
  4. A substance produced during a chemical reaction

10 Clues: Heat is absorbed • Heat is released • Distinct forms of matter • Also known as thermal energy • Has definite volume and shape • Has indefinite volume and shape • The simplest unit of a chemical compound • Has definite volume but no definite shape • A substance produced during a chemical reaction • Take part and undergoes change during a chemical reaction

Key words for reactions and practical work 2019-11-06

Key words for reactions and practical work crossword puzzle
Across
  1. the number of particles per unit volume
  2. the number of collisions taking place per unit time
  3. a substance that speeds up a chemical reaction but remains chemically unchanged itself at the end of the reaction
  4. has a value represented by words, shown with a line graph
  5. the variable that you change or measure
  6. a collision between particles that leads to a reaction
  7. a measurement close to the true value
  8. an explanation of chemical reactions in terms of reacting particles colliding with sufficient energy for a reaction to take place
  9. the amount of product formed, or reactant used up, over time
  10. a variable that must not change during an experiment, otherwise, the results are invalid
  11. a poor measurement, usually seen as an anomalous result
Down
  1. the ‘exterior’ of a solid that can react with other substances
  2. the minimum energy needed for a reaction to take place. Often shortened to Ea
  3. a collision between particles that does not lead to a reaction
  4. has a value represented by numbers, shown with a bar chart
  5. the variable that you measure
  6. a result that is clearly different from the expected pattern
  7. measurements in which there is very little spread about the mean value
  8. a problem with the apparatus as the results are precise, but not accurate
  9. 1/s
  10. if another person repeats your experiment in the same way, or if you repeat using different equipment or techniques and the same results are obtained
  11. if you repeat your experiment using the same method and equipment and obtain the same results

22 Clues: 1/s • the variable that you measure • a measurement close to the true value • the number of particles per unit volume • the variable that you change or measure • the number of collisions taking place per unit time • a collision between particles that leads to a reaction • a poor measurement, usually seen as an anomalous result • ...

8th Grade Review 2023-12-08

8th Grade Review crossword puzzle
Across
  1. Atoms are mostly made of this
  2. When heat is added, molecules move ____
  3. Material that comes from the Earth or natural resources
  4. Mass per unit volume
  5. Positively charged subatomic particles
  6. Process that changes liquids to solids
  7. Atoms on the left side of a chemical reaction
  8. Process that changes solids to liquids
  9. Material that is manmade in some way
  10. State of matter with molecules most tightly packed
Down
  1. State of matter with molecules most spread out
  2. Number that signifies the number of protons and neutrons in an atom
  3. Negatively charged subatomic particles
  4. An atom with an unequal number of protons and neutrons
  5. Atoms on the right side of a chemical reaction
  6. A chemical equation with equal molecules on both sides
  7. Two Hydrogen atoms bonded with one oxygen atom forms this molecule

17 Clues: Mass per unit volume • Atoms are mostly made of this • Material that is manmade in some way • Negatively charged subatomic particles • Positively charged subatomic particles • Process that changes liquids to solids • Process that changes solids to liquids • When heat is added, molecules move ____ • Atoms on the left side of a chemical reaction • ...

Chapter 6 & 7 2023-11-03

Chapter 6 & 7 crossword puzzle
Across
  1. new substances formed as a result of a chemical reaction
  2. the force that holds atoms or ions together as a unit
  3. a diagram of an atom, ion or molecule in which each dot represents a valence electron
  4. a representation of a chemical reaction in which the reactants and products are expressed as formulas
  5. a neutral group of atoms that are joined together by one or more covalent bonds
  6. a chemical bond in which two atoms share a pair of valence electrons
Down
  1. notation that shows what elements a compound contains and the ratio of the atoms or ions of these elements in the compound
  2. numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
  3. an atom or group of atoms that has a positive or negative charge
  4. a mixture of two or more elements, at least one of which is a metal, that has the characteristic properties of a metal
  5. a substance that undergoes change in a chemical reaction
  6. an ion with a positive charge
  7. the attraction between a metal cation and the shared electrons that surround it
  8. an ion with a negative charge
  9. the force that holds cations and anions together

15 Clues: an ion with a positive charge • an ion with a negative charge • the force that holds cations and anions together • the force that holds atoms or ions together as a unit • new substances formed as a result of a chemical reaction • a substance that undergoes change in a chemical reaction • an atom or group of atoms that has a positive or negative charge • ...

chemical Engineering 2024-02-19

chemical Engineering crossword puzzle
Across
  1. The science and technology of extracting metals from their ores, refining them, and preparing them for use
  2. The measure of water vapor content in the air, often expressed as a percentage of the maximum amount that the air could hold at the given temperature
  3. A device or system used to transfer heat between two or more fluids at different temperatures, often used in industrial processes
  4. A type of chemical bond formed between ions of opposite charges, typically involving the transfer of electrons
  5. A substance that increases the rate of a chemical reaction by providing an alternative reaction pathway with lower activation energy
  6. Having uniform physical properties in all directions, often used to describe materials or substances
  7. A synthetic polymer with a wide range of applications, including textiles, plastics, and engineering materials
  8. A quantitative relationship between reactants and products in a chemical reaction, often involving mole ratios
  9. Large, complex molecules essential for life processes, including proteins, nucleic acids, carbohydrates, and lipids
  10. The fourth state of matter, consisting of ionized gas exhibiting collective behavior
  11. The branch of mechanics concerned with the motion of bodies under the action of forces
  12. The process of separating the components of a mixture based on differences in their volatilities, typically involving heating and condensation
Down
  1. The process of reducing materials to small particles by crushing or grinding
  2. A thermodynamic process or system in which no heat is exchanged with the surroundings
  3. The branch of chemistry and physics concerned with the rates of chemical reactions and the factors that influence them
  4. A laboratory technique used to separate and analyze mixtures of compounds based on their differential migration through a stationary phase under the influence of a mobile phase
  5. The pressure exerted by a vapor in equilibrium with its liquid phase at a given temperature
  6. A chemical reaction involving the loss of electrons by a substance, often accompanied by the addition of oxygen or the removal of hydrogen
  7. Molecules that have the same molecular formula but different structural arrangements, resulting in different chemical and physical properties
  8. State of matter characterized by its ability to flow and conform to the shape of its container, with a fixed volume but no fixed shape

20 Clues: The process of reducing materials to small particles by crushing or grinding • The fourth state of matter, consisting of ionized gas exhibiting collective behavior • A thermodynamic process or system in which no heat is exchanged with the surroundings • The branch of mechanics concerned with the motion of bodies under the action of forces • ...

Max's Alcohol Crossword 2021-12-05

Max's Alcohol Crossword crossword puzzle
Across
  1. drug that slows central nervous system
  2. Poisoning, severe reaction to alcohol
  3. chemical reaction of yeast and sugars
  4. without alcohol
  5. Body, benefit of living drug free
  6. Alcoholic's Anonymous
  7. Dependence, condition where user has a chemical need for a drug
  8. stage 3 of alcoholism
  9. Abuse,excessive use of alcohol
  10. type of alcohol in alcoholic beverages
  11. stage 1 on alcoholism
  12. stage 2 of alcoholism
Down
  1. disease in which person has a dependency on alcohol
  2. Drinking, drinking five or more alcoholic drinks in one sitting
  3. state in which body is poisoned by alcohol
  4. Dependence, state in which believes a drug is need to function normally
  5. addict who is dependent on alcohol
  6. Blood Alcohol Concentration
  7. Fetal Alcohol Syndrome
  8. process of learning to live drug free

20 Clues: without alcohol • Alcoholic's Anonymous • stage 3 of alcoholism • stage 1 on alcoholism • stage 2 of alcoholism • Fetal Alcohol Syndrome • Blood Alcohol Concentration • Abuse,excessive use of alcohol • Body, benefit of living drug free • addict who is dependent on alcohol • Poisoning, severe reaction to alcohol • chemical reaction of yeast and sugars • ...

The Chemistry of Life 2022-11-21

The Chemistry of Life crossword puzzle
Across
  1. / A substance made up a group of similar atoms that have the same number of protons
  2. / The main purpose of ______ is to convert excess food into long-term energy storage units.
  3. / Found in cell walls of plants
  4. / The combination of protons and neutrons
  5. / Covalent bond between two amino acids
  6. / molecules with partial charges on opposite ends
  7. / A new substance that is formed in a chemical reaction
  8. / The substance acted upon by an enzyme
  9. / A simple sugar
  10. / Atoms of an element that have different numbers of neutrons
  11. / Atomic particle with no charge
  12. / Consisted of hundreds of glucose units bonded together
  13. / A molecule that acts as a catalyst in biochemical reactions
  14. / The basic units of biochemistry contain ______ atoms.
  15. / The smallest unit of matter that can’t be broken down by chemical means
  16. / Unused glucose in animals is stored as this macromolecule
  17. / The minimum amount of energy required to start a chemical reaction
Down
  1. / A molecule made up of a sugar, phosphate group, and a base
  2. / These structures border cell membranes
  3. / The region where electrons orbit the nucleus
  4. / An electron that is found in the outermost shell of an atom
  5. / Building blocks of proteins
  6. / The number of protons in the nucleus of an atom, which determines its place in the periodic table
  7. / Testosterone is a chemical signal known as this
  8. / Covers parts of plants and aquatic birds to repel water
  9. / Atomic particle with a negative charge
  10. / Many sugars linked together
  11. / Used to speed up a chemical reaction
  12. / A substance that participates in a chemical reaction
  13. / Contains carbon, hydrogen, and oxygen; will dissolve in water
  14. / Found in shells of crabs, lobsters, and insects
  15. / Changes in temperature and pH can change a protein’s shape
  16. / An organic molecule that acts as the main energy source for cell processes
  17. / Composed of chains of amino acids made of carbon, hydrogen, oxygen, and nitrogen
  18. / Positively charged particle
  19. / Two sugars linked together
  20. / Organic molecule made up of carbon, hydrogen, and oxygen and will not dissolve in water
  21. / The combination of glucose and fructose
  22. / The site that attaches to a substrate on an enzyme

39 Clues: / A simple sugar • / Two sugars linked together • / Building blocks of proteins • / Many sugars linked together • / Positively charged particle • / Found in cell walls of plants • / Atomic particle with no charge • / Used to speed up a chemical reaction • / Covalent bond between two amino acids • / The substance acted upon by an enzyme • / These structures border cell membranes • ...

Honor Bio Ch 1 & 2 Vocab 2023-09-12

Honor Bio Ch 1 & 2 Vocab crossword puzzle
Across
  1. a small molecule that forms the head region of a triglyceride fat molecule
  2. a substance composed of atoms of different elements in specific ratios, held together by ionic bonds
  3. a carbohydrate that contains multiple simple carbohydrates linked together. Examples: starch, glycogen (2 words)
  4. a chemical within a cell that binds to an enzyme or substrate molecule and in doing so reduces the enzyme's ability to catalyze a reaction
  5. a chemical that can quickly absorb excess H+ ions in a solution or quickly release H+ ions
  6. a lipid important in regulating growth and development; Examples: cholesterol, testosterone, and estrogen
  7. A sterol, important in maintaining growth and development, important in cell membranes by giving it stability
  8. a chemical within a cell that binds to part of an enzyme away from the active site and reduces or blocks the enzyme's ability to bind with substrate (2 words)
  9. the property of some elements or isotopes of having a nucleus that breaks down spontaneously, releasing tiny, high-speed particles that carry energy
  10. one of the nitrogen-containing side-chain molecules attached to a sugar molecule in the sugar-phosphate backbone of DNA and RNA. Example: Adenine (3 words)
Down
  1. structural material for plants, most prevalent organic compound on earth
  2. a complex carbohydrate consisting of stored glucose molecules linked to form a large web
  3. describes knowledge that is based on experience and observations that are rational, testable, and repeatable
  4. the strength of a bond between two atoms (2 words)
  5. an unsaturated fat that has been partially hydrogenated (2 words)
  6. the molecule on which an enzyme acts
  7. a chemical within a cell that binds to the active site of an enzyme, blocking substrate molecules from the site and thereby reducing the enzyme's ability to catalyze a reaction (2 words)
  8. a bond created by the transfer of one or more electrons from one atom to another (2 words)
  9. a strong bond formed when two atoms share electrons (2 words)
  10. COOH (2 words)
  11. a protein that initiates and accelerated a chemical reaction in living organisms
  12. minimum energy needed to initiate a chemical reaction (2 words)
  13. a complex indigestible by humans, that forms the rigid outer skeleton of most insects and crustaceans
  14. variants of atoms that differ in the number of neutrons they possess
  15. NH₂ (2 words)

25 Clues: NH₂ (2 words) • COOH (2 words) • the molecule on which an enzyme acts • the strength of a bond between two atoms (2 words) • a strong bond formed when two atoms share electrons (2 words) • minimum energy needed to initiate a chemical reaction (2 words) • an unsaturated fat that has been partially hydrogenated (2 words) • ...

Unit V Crossword Puzzle 2023-12-06

Unit V Crossword Puzzle crossword puzzle
Across
  1. intensive property of matter that is a quantitative measure of "hotness" and "coldness"
  2. transfer of thermal energy between two bodies
  3. SI unit of energy
  4. this type of energy is involved in that of a moving body
  5. standard enthalpy of ________ is the enthalpy change of a chemical reaction in which 1 mole of a pure substance is formed from its formed from its elements in their most stable states
  6. this type of chemical reaction is absorbed by a system under constant pressure
  7. one ______ concentration is the standard state of a solution
  8. all matter other than the system being studied
  9. this type of calorimeter is designed to measure the energy change for processes occurring under conditions of constant volume
  10. unit of heat or other energy; the amount of energy required to raise 1 gram of water by 1 degree C
  11. this type of energy is the kinetic energy associated with the random motion of atoms and molecules
  12. portion of matter undergoing a chemical or physical change being studied
  13. state _____ is a property depending only on the state of a system, and not the path take to reach that state
  14. energy transfer due to changes in external, macroscopic variables such as pressure and volume
Down
  1. standard enthalpy of _______ is heat released when one mole of a compound undergoes complete combustion under standard conditions
  2. compound composed only of hydrogen and carbon
  3. study of measuring the amount of heat absorbed or released during a chemical reaction or a physical change
  4. this type of energy is derived from relative position, composition, or condition
  5. this type of chemical reaction or physical change absorbs heat
  6. also known as Calorie - unit used for quantifying energy provided by digestion of foods
  7. device used to measure the amount of heat absorbed or released in a chemical or physical process
  8. this law describes that if a process can be represented as a sum of several steps, the enthalpy change of the process equals the sum of the enthalpy changes of the steps
  9. sum of a system's internal energy
  10. this type of energy is the total of all possible kinds of energy present in a substance or substances
  11. ____ atm is the standard state of for gases

25 Clues: SI unit of energy • sum of a system's internal energy • ____ atm is the standard state of for gases • compound composed only of hydrogen and carbon • transfer of thermal energy between two bodies • all matter other than the system being studied • this type of energy is involved in that of a moving body • one ______ concentration is the standard state of a solution • ...

BB2200 week 2 2019-09-13

BB2200 week 2 crossword puzzle
Across
  1. A weak acid plus its conjugate base that cause a solution to resist changes in pH when an acid or base are added
  2. Molecule that has both a positive and a negative charge (net charge=0)
  3. Same molecular formula and same connectivity of atoms but different arrangement of atoms in space
  4. Two equal but opposite charges, separated in space, resulting from the uneven distribution of charge within a molecule or a chemical bond
  5. Amino acid which forms disulfide crosslinks (bonus: can you draw this amino acid?)
  6. A measure of the force of an atom's attraction for electrons it shares in a chemical bond with another atom
  7. Reaction involving intramolecular shift of atoms or groups (two words)
  8. Reaction in which one atom of a group is substituted for another (two words)
  9. Total sum of the chemical reaction happening in a living organism
  10. Energy-requiring biosynthetic pathways
Down
  1. Imino acid whose side chain is connected to the backbone at two places (bonus: can you draw this amino acid?)
  2. 3-letter abbreviation of the amino acid which is catalytically, the most important type of residue
  3. The pH at which the zwitterion is the predominant form (two words)
  4. Stereoisomers whose molecules are not mirror images of each other
  5. An electron-rich species that is negatively charged or contains unshared electron pairs and is attracted to chemical species that are positively charged or electron-deficient
  6. Reaction in which a double bond is formed when atoms in a molecule are removed (two words)
  7. Attraction of water to other water molecules

17 Clues: Energy-requiring biosynthetic pathways • Attraction of water to other water molecules • Stereoisomers whose molecules are not mirror images of each other • Total sum of the chemical reaction happening in a living organism • The pH at which the zwitterion is the predominant form (two words) • Molecule that has both a positive and a negative charge (net charge=0) • ...

Chemistry Of Life 2013-08-24

Chemistry Of Life crossword puzzle
Across
  1. One particular type of atom and it can not be broken down into a simpler substance by ordinary chemical means
  2. Bond forms when atoms share a pair of electrons
  3. The attraction among molecules of different substances
  4. The specific reactants that an enzyme acts on
  5. Each subunit in the complete molecule.
  6. The attraction among molecules of a substance
  7. A solutions acidity or H+ ion concentration
  8. Is a polymer made of monomers called amino acids
  9. acids Polymers that are made up of monomers called nucleotides
  10. Is reached when both the reactants and products are made at the same rate
Down
  1. The substances changed during a chemical reaction
  2. Catalysts for chemical reactions in living things
  3. Chemical reaction absorbs more energy than it releases
  4. The amount of energy that will break a bond between two atoms
  5. Is a large molecule, or macromolecule, made of many monomers bonded together
  6. Bond forms through the electrical force between oppositely changed ions
  7. Substance that is present in the greater amount and that dissolves another substance

17 Clues: Each subunit in the complete molecule. • A solutions acidity or H+ ion concentration • The specific reactants that an enzyme acts on • The attraction among molecules of a substance • Bond forms when atoms share a pair of electrons • Is a polymer made of monomers called amino acids • The substances changed during a chemical reaction • ...

CH1&2 Biology Crossword 2023-09-11

CH1&2 Biology Crossword crossword puzzle
Across
  1. One of the four types of biological macromolecules; the nucleic acids DNA and RNA store genetic information in unique sequences of nucleotides. (2 words)
  2. A bond formed by two atoms sharing electrons. (2 words)
  3. Liquid at room temperature and is found in plant fats, fish, and vegetable oils. (2 words)
  4. A lipid similar in structure to fats but only has one long-chain fatty acid linked to the glycerol head of the molecule; because the fatty acid chain is highly nonpolar, these are strongly hydrophobic.
  5. Knowledge based on experience and observations that are rational, testable, and repeatable.
  6. A functional group characterized by a carbon atom double-bonded to one oxygen atom and single-bonded to another. (2 words)
  7. A chemical within a cell that binds to an enzyme or substrate molecule and in doing so reduces the enzyme's ability to catalyze a reaction.
  8. A chemical within a cell that binds to part of an enzyme away from the active site, but alters the enzyme's shape so as to alter the active site, thereby reducing or blocking the enzyme's ability to bind with substrate. (2 words)
  9. A hypothesis that states a lack of relationship between cause and effect. (2 words)
  10. Disruption of protein folding/unfolding a protein.
  11. The fats in most foods we eat. 3 fatty acids joined to glycerol.
  12. A chemical within a cell that binds to an enzyme, altering the enzyme's shape or structure in a way that causes the enzyme to catalyze a reaction.
  13. A covalent bond between amine group (NH2) of one amino acid and a carboxyl group (COOH) of another.
  14. Otherwise known as "local folding." Folding along short sections of a polymer. (2 words)
  15. An atom that has extra neutrons or fewer neutrons than the number of protons.
  16. The molecule on which an enzyme acts. The active site on the enzyme binds to this, initiating a chemical reaction.
  17. A bond formed between a hydrogen atom in one molecule and another atom (often oxygen or nitrogen atom) in another molecule. (2 words)
  18. A lipid important in regulating growth and development.
  19. The part of an enzyme to which reactants (or substrates) bind and undergo a chemical reaction. (2 words)
  20. Weak acids or bases that react with strong acids or bases to prevent sharp, sudden changes in pH (neutralization).
  21. Large web of molecules that stored glucose molecules are linked together to form.
Down
  1. Any atom with a positive or negative charge.
  2. Formed when large numbers of simple sugars are bonded together.
  3. Otherwise known as "whole molecule folding." The complex 3D shape formed by multiple twists and bends in the polypeptide chain. (2 words)
  4. A chemical within a cell that binds to the active site of an enzyme, blocking substrate molecules from the site and thereby reducing the enzyme's ability to catalyze a reaction. (2 words)
  5. The sequence of amino acids in the polypeptide chain. (2 words)
  6. Two or more polypeptide chains bonded together. (2 words)
  7. The minimum energy needed to initiate a chemical reaction. (2 words)
  8. Forms rigid outerskeleton of most insects and crustaceans.
  9. Solid at room temperature, most animal fats, large sums contribute to cardiovascular disease. (2 words)
  10. A primary component of cell walls. Forms a huge variety of plant structures that are visible all around us.
  11. A type of protein that initiates and assists every chemical reaction that occurs.
  12. One nitrogen atom and two hydrogen atoms (NH2). A part of the structure of amino acids. (2 words)
  13. A bond formed by a transfer of electrons. (2 words)
  14. A molecule containing a phosphate group, a sugar molecule, and a nitrogen-containing molecule. The individual units that together, in a unique sequence, constitute a nucleic acid.

35 Clues: Any atom with a positive or negative charge. • Disruption of protein folding/unfolding a protein. • A bond formed by a transfer of electrons. (2 words) • A bond formed by two atoms sharing electrons. (2 words) • A lipid important in regulating growth and development. • Two or more polypeptide chains bonded together. (2 words) • ...

Proteins 2025-03-18

Proteins crossword puzzle
Across
  1. alpha helix or beta pleated sheet
  2. 2 or more polypeptide chains joined together
  3. a chemical agent that changes the rate of a chemical reaction, but is nto part of the chemical reaction
  4. these proteins allow organelles and substances to move within cells
  5. when a protein loses its characteristic shape
  6. the type of bond that joins amino acids
  7. these proteins serve as biological catalysts
  8. amino acids that the body cannot synthesize and must come from diet
  9. these proteins store iron, amino acids, and other useful nutrients
Down
  1. these proteins make up bones, muscles, organs
  2. a long chain of many amino acids
  3. these proteins allow for movement
  4. the monomer of a protein
  5. the amino acid sequence
  6. these proteins allow for cell-to-cell communication
  7. these proteins function in the immune system
  8. globular or fibrous

17 Clues: globular or fibrous • the amino acid sequence • the monomer of a protein • a long chain of many amino acids • these proteins allow for movement • alpha helix or beta pleated sheet • the type of bond that joins amino acids • 2 or more polypeptide chains joined together • these proteins function in the immune system • these proteins serve as biological catalysts • ...

ECM Vocabulary Review 2014-04-28

ECM Vocabulary Review crossword puzzle
Across
  1. Elements and compounds are both __ substances
  2. Fizzing and foaming and change in temperature are signs that a __ change is occurring
  3. Gets credit for organizing the Periodic Table
  4. Particle in an atom with a negative charge
  5. A reaction that produces and gives off heat
  6. Found on the Periodic Table
  7. Law that states that in a closed system, the mass before a change occurs will equal the mass after the change
  8. The new substances formed during a chemical reaction are called __
  9. Two or more elements chemically joined in a specific ratio
  10. Smallest unit of a compound that maintains the properties of the compound
Down
  1. Density and malleability are examples of __ properties
  2. Two or more elements and/or compounds NOT chemically combined
  3. Is equal to the number of protons in an atom
  4. A property that is unique to a substance and can be used to identify the substance
  5. A reaction that uses heat energy and therefore feels cool
  6. Particle in an atom with a positive charge
  7. Smallest unit of an element that maintains the properties of the element
  8. The substances on the left side of a chemical equation are called __

18 Clues: Found on the Periodic Table • Particle in an atom with a positive charge • Particle in an atom with a negative charge • A reaction that produces and gives off heat • Is equal to the number of protons in an atom • Elements and compounds are both __ substances • Gets credit for organizing the Periodic Table • Density and malleability are examples of __ properties • ...

Chemistry Crossword 2017-11-15

Chemistry Crossword crossword puzzle
Across
  1. the smallest part of an element that is representative of that element; a neutral particle made up of a nucleus containing protons and neutrons, and in which the number of electrons equals the number of protons
  2. invisible negatively charged particle that orbits the nucleus of an atom
  3. description of substance that can be pounded or rolled into sheets
  4. compound that dissolves in water to form a solution with a pH higher than 7
  5. substance that strongly resists the flow of energy
  6. a reaction that takes place when 2 or more substances react to form new substances
  7. colourless, odourless gas; produced by incomplete combustion of chemicals containing carbon (e.g. hydrocarbons); major source: motor vehicles
  8. chemical reaction that absorbs energy
  9. measure of atomic mass; 1 amu is equal to 1/12th the mass of a carbon 12 atom
  10. catalyst involved in chemical reactions in living things
  11. mass of one atom of an element calculated from the total number of protons, neutrons, and electrons of that atom; measured in atomic mass units (amu)
  12. creation of electrical current
  13. ability to do work
Down
  1. description of a solid that can be stretched into a long wire
  2. pure substance that cannot be broken down into other substances; substance made up of only 1 type of atom
  3. change of state from liquid to a gas
  4. group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
  5. change that results when 2 or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
  6. combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
  7. an experiment in which all reactants and all products of a chemical reaction are accounted for
  8. group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals
  9. chemical combination of 2 or more elements in a specific ratio
  10. chemical reaction that releases energy
  11. number of protons in the nucleus of one atom of an element

24 Clues: ability to do work • creation of electrical current • change of state from liquid to a gas • chemical reaction that absorbs energy • chemical reaction that releases energy • substance that strongly resists the flow of energy • catalyst involved in chemical reactions in living things • number of protons in the nucleus of one atom of an element • ...

Chemistry Crossword Puzzle 2026-03-17

Chemistry Crossword Puzzle crossword puzzle
Across
  1. The atomic number is the measure of ___ .
  2. A ___covalent bond has an unequal sharing of electrons between the two atoms.
  3. Found in shells orbiting nucleus, with a negative charge.
  4. A chemical ___expresses a chemical composition of a substance.
  5. The smallest unit of an element.
  6. The overall charge of an atom.
  7. A substance that cannot be broken down into simpler substances by ordinary chemical means.
  8. This type of reaction can reverse reactants and products in both directions.
  9. Hydrogen bonds have a _____attractive force.
  10. Atomic ___ is the sum of the number of protons and neutrons.
  11. This type of reaction exchanges components.
  12. Atoms that form a bond due to opposing charges are connected by an ___ bond.
  13. Chemical symbol is Na.
  14. Nonpolar molecules are ___(do not mix well with water).
  15. Found in the nucleus of an atom, with no charge.
  16. The outermost electron shell.
  17. Anything that occupies space.
  18. Radioisotopes can be used in the treatment of ___ .
  19. A ____ formula shows how the atoms are linked together.
Down
  1. Substance formed by atoms from two or more elements(can have ionic or covalent bond).
  2. Substance formed by two or more atoms bonded together by covalent bonds only.
  3. Atom of the same element with a different number of neutrons.
  4. Polar molecules are ___ (mix well with water).
  5. The number allowed in the first shell.
  6. If the valence shell is not full, the atom is considered ___ .
  7. Ion with a negative charge.
  8. This type of reaction breaks down bonds.
  9. This type of reaction forms a new bond.
  10. Found in the nucleus of an atom, with a positive charge.
  11. Ion with a positive charge.
  12. The typical number in a valence shell (octet rule).
  13. Scientific study of matter and the interaction of matter.
  14. Atoms form molecules by sharing electrons are joined with a ___bond.
  15. The chemical ____ is a shorthand for referring to an element or atom of an element.
  16. Nonpolar covalent bonds shared electrons spend ___time revolving between the two atoms.
  17. Atom with a net charge due to the loss or gain of an electron.

36 Clues: Chemical symbol is Na. • Ion with a negative charge. • Ion with a positive charge. • The outermost electron shell. • Anything that occupies space. • The overall charge of an atom. • The smallest unit of an element. • The number allowed in the first shell. • This type of reaction forms a new bond. • This type of reaction breaks down bonds. • ...

Matter Vocab Page 2 2026-03-13

Matter Vocab Page 2 crossword puzzle
Across
  1. a new substance that forms during a chemical reaction
  2. the amount of force exerted over a certain area.
  3. data that can be used to support a scientific claim or argument.
  4. the change in state from a gas to a liquid.
  5. the physical form matter takes as determined by the arrangement and motion of its atoms or molecules.
Down
  1. the state of matter in which atoms or molecules are closely packedand touching one another, but are not held in fixed positions.
  2. a process in which one or more new substances form from one or more other substances.
  3. the scientific law stating that matter cannot be created or destroyed.
  4. the change in state from a liquid to a gas at the surface of the liquid.
  5. the change in state from a liquid to a solid.
  6. a shorthand notation made up of arrows and chemical formulas for reactants and products that summarizes what happens during a chemical reaction
  7. a substance that exists before a chemical reaction takes place and changes as a result of the reaction.
  8. the state of matter in which atoms or molecules are closely packed and touching one another in fixed positions.
  9. Point the temperature at which a substance changes from a solid to a liquid as thermal energy is added to it

14 Clues: the change in state from a gas to a liquid. • the change in state from a liquid to a solid. • the amount of force exerted over a certain area. • a new substance that forms during a chemical reaction • data that can be used to support a scientific claim or argument. • the scientific law stating that matter cannot be created or destroyed. • ...

Chemistry 5.02 2022-05-28

Chemistry 5.02 crossword puzzle
Across
  1. has a pH of 7
  2. element found in all acids
  3. used to check pH level, indicator
  4. ions found in a alkali solution
  5. chemical symbol K
  6. pH above 7
  7. bond which consists of sharing electrons
  8. high concentration in a solution
  9. main topic key word
  10. chemical symbol NH
Down
  1. pH less than 7
  2. a mixture
  3. color acid becomes on the pH scale
  4. ions found in a acid solution
  5. color alkali becomes on the pH scale
  6. low concentration in a solution
  7. word used when something happens in a experiment
  8. way to know if it is a alkali solution
  9. bond which includes electrostatic attraction
  10. chemical symbol Na
  11. chemical symbol Ca

21 Clues: a mixture • pH above 7 • has a pH of 7 • pH less than 7 • chemical symbol K • chemical symbol Na • chemical symbol Ca • chemical symbol NH • main topic key word • element found in all acids • ions found in a acid solution • ions found in a alkali solution • low concentration in a solution • high concentration in a solution • used to check pH level, indicator • ...

Chemistry Crossword 2016-11-06

Chemistry Crossword crossword puzzle
Across
  1. Equation that only shows the the solid elements
  2. A reaction where a precipitate is formed
  3. One molecule replaces another
  4. Reaction where electrons are lost
  5. Reaction where electrons are gained
  6. Molecules break apart to form more simple compounds
  7. Charge
  8. One or more molecules come together to make a compound
Down
  1. Solids
  2. Two molecules replace to other molecules
  3. An acid reacts with water in a reaction
  4. Produces Water (H20)
  5. the ability to be soluble (Dissolve)
  6. A chart of reactivity of elements
  7. How reactive a Chemical is

15 Clues: Solids • Charge • Produces Water (H20) • How reactive a Chemical is • One molecule replaces another • A chart of reactivity of elements • Reaction where electrons are lost • Reaction where electrons are gained • the ability to be soluble (Dissolve) • An acid reacts with water in a reaction • Two molecules replace to other molecules • A reaction where a precipitate is formed • ...

Biology Chapter 2 vocab 2023-09-21

Biology Chapter 2 vocab crossword puzzle
Across
  1. quality of molecules having an unequal distribution of electrical charge
  2. the process of particles in a solution that are evenly distributed throughout the solvent by Brownian motion
  3. the attraction between like particles within polar substances
  4. the substances formed during a chemical reaction
  5. a substance that is present before a chemical reaction, and takes part in it
  6. a substance that can produce hydroxide ions or accept hydrogen ions
  7. a change in a substance that does not changes the identity of the substance
  8. the physical stuff that makes up the universe
  9. the building blocks for information of storage molecules of DNA and RNA
  10. the attracion of particles in one substance for particles in a different substance
  11. an organic compound comprimised by carbon, hydrogen,and oxygen
  12. the smallest particle of a covalently bonded compound
  13. an attraction between two atoms from shared or transferred valence electrons
Down
  1. one or more new substances being formed that have different physical and chemical properties
  2. the process of a substance where the solute is broken up and distributed within the solvent
  3. nonpolar organic compounds that are used for energy storage and cell membranes
  4. a substance that binds to an enzyme and reduces its activity, slowing its chemical reaction
  5. a pure substance made of one kind of atom
  6. simple organic compounds important in living things as a source of energy and structure
  7. a covalently bonded compound containing carbon
  8. a measurement of the average speed of the particles within a substance
  9. a substance that changes the rate of a chemical reaction
  10. a class of organic compounds that serve as the building blocks of proteins
  11. the tendency of energy to disperse and become less available to do work
  12. a substance that can produce hydrogen ions in a solution
  13. a naturally occuring catalyst, usually a protein
  14. a pure substance made from two or more elements that are chemically combined
  15. the building block of matter
  16. the ability to do work

29 Clues: the ability to do work • the building block of matter • a pure substance made of one kind of atom • the physical stuff that makes up the universe • a covalently bonded compound containing carbon • the substances formed during a chemical reaction • a naturally occuring catalyst, usually a protein • the smallest particle of a covalently bonded compound • ...

Cell proccesses 2024-10-20

Cell proccesses crossword puzzle
Across
  1. A solution in which the solute and solvent are equally distributed.
  2. Any substance that dissolves in a liquid solvent.
  3. To make a chemical reaction happen or happen more quickly by acting as a catalyst.
  4. Any external solution that has a high solute concentration and low water concentration.
  5. Movement of molecules from a solution with high concentration of water molecules to lower concentration.
  6. Chemical reaction releasing energy through heat or light.
  7. A homogeneous mixture that is made up of a solute dissolved within a solvent.
  8. A energy-carrying molecule found in cells of all living things.
  9. Proteins that serve as biological catalysts, increasing chemical reactions.
  10. Energy-driven process where membrane proteins transport molecules across the cell membrane.
  11. Movement of molecules across the cell membrane from lower concentration to higher.
  12. A theory of enzyme action that explains how enzymes fit their substrate.
  13. Chemical reaction that absorbs heat from its surroundings.
  14. A type of Passive Transport that uses specialized proteins like channel and carrier to move molecules across the cell membrane.
Down
  1. A law stating at matter cannot be destroyed or created.
  2. An active transport pump that exchanges sodium ions for potassium ions.
  3. Barrier that allows some molecules to pass through but others not.
  4. The minimum energy required for a reaction to occur.
  5. Involving no oxygen or without oxygen.
  6. Process by which green plants or certain other organisms transform light energy into chemical.
  7. A law that states that energy is not created nor destroyed merely changes form.
  8. An enzyme's shape and confirmation changing overtime in response to substrate binding.
  9. Process of capturing a particle and engulfing it with the cell membrane.
  10. Movement of particles from high concentration to low and not using help from membrane proteins.
  11. Process in which cells derive energy from glucose.
  12. Type of membrane transport that doesn't use energy to move substances across the cell membrane.
  13. Solutions having low concentration compared to other solutions across the semipermeable membrane.
  14. Basic building blocks of all living things. Human body has trillions of them.
  15. Involving ,needing or relating to oxygen.

29 Clues: Involving no oxygen or without oxygen. • Involving ,needing or relating to oxygen. • Any substance that dissolves in a liquid solvent. • Process in which cells derive energy from glucose. • The minimum energy required for a reaction to occur. • A law stating at matter cannot be destroyed or created. • Chemical reaction releasing energy through heat or light. • ...

Chemical Reactions Vocabulary Crossword 2025-03-21

Chemical Reactions Vocabulary Crossword crossword puzzle
Across
  1. A combination of symbols that represents the elements in a compound, like "H2O" for water.
  2. Changing the order of something in order to create new substances.
  3. The starting substance in a chemical reaction.
  4. The temperature at which a liquid changes to a gas, but no new substance is formed. Water has a __ __ of 100 degrees Celsius.
  5. A ___ is formed when two or more atoms bond together. (i.e. H2O = water)
  6. The smallest particles that make up all the matter and ___ during chemical reactions.
Down
  1. A process in which substances change into new substances with different chemical properties.
  2. The relative size of things.
  3. Ice has a ___ ___ of 0 degrees Celsius, the temperature where it changes from a solid to a liquid.
  4. Scientists use these to represent how atoms are arranged and interact with one another in a chemical reaction.
  5. The ability to rust is a chemical ___ of iron because it reacts with oxygen over time.
  6. Something that is made of all the same atoms or groups of atoms.
  7. Some acids are ___, meaning they can eat away at metals over time.
  8. In the reaction between hydrogen and oxygen, water is the ___ that is formed. (The end result.)

14 Clues: The relative size of things. • The starting substance in a chemical reaction. • Something that is made of all the same atoms or groups of atoms. • Changing the order of something in order to create new substances. • Some acids are ___, meaning they can eat away at metals over time. • A ___ is formed when two or more atoms bond together. (i.e. H2O = water) • ...

Enzyme Choice 2021-10-22

Enzyme Choice crossword puzzle
Across
  1. bond linking 2 amino acids
  2. the type of molecules enzymes are
  3. building block of protein
  4. region on an enzyme that binds to a protein
  5. change in the free energy is positive
  6. analogy for substrate combining w/ substrate
  7. enzyme-substrate _______
Down
  1. a molecule upon which an enzyme acts
  2. catalyst for an enzyme reaction
  3. first component of an enzyme reaction
  4. catalyst to bring about a chemical reaction
  5. result of an enzyme reaction
  6. change in the free energy is negative
  7. the enzyme that breaks down lactose
  8. denatured proteins change _______

15 Clues: enzyme-substrate _______ • building block of protein • bond linking 2 amino acids • result of an enzyme reaction • catalyst for an enzyme reaction • the type of molecules enzymes are • denatured proteins change _______ • the enzyme that breaks down lactose • a molecule upon which an enzyme acts • first component of an enzyme reaction • change in the free energy is negative • ...

Carbohydrates 2023-09-29

Carbohydrates crossword puzzle
Across
  1. the monomer of carbohydrates
  2. the reaction that removes water from the reactant to build up a polymer
  3. Carbohydrates that take more energy to digest because it has more bonds to break down
  4. a sugar that has two monomers
  5. all sugars end with this suffix
  6. the general term for a molecule that is made up of 2+ subunits
  7. the general term for the metabolic reaction that breaks down molecules; releases energy
  8. the macromolecule that provides short and long term energy
Down
  1. the reaction that adds water to a polymer to break it down into monomers
  2. carbs, proteins, nucleic acids, and lipids are all types of this
  3. there are 12 atoms of this element in glucose
  4. this element's chemical symbol is "O"
  5. has the same chemical formula, but different structure (e.g. galactose & fructose)
  6. carbohydrates that are easy to digest
  7. the element that makes molecules "organic"
  8. the general term for the metabolic reaction that builds up monomers; takes energy
  9. a large molecule of sugar, such as starch
  10. the general term for a molecule that is the simplest building block of a macromolecule
  11. a common food item used in spaghetti that is high in carbs

19 Clues: the monomer of carbohydrates • a sugar that has two monomers • all sugars end with this suffix • this element's chemical symbol is "O" • carbohydrates that are easy to digest • a large molecule of sugar, such as starch • the element that makes molecules "organic" • there are 12 atoms of this element in glucose • a common food item used in spaghetti that is high in carbs • ...

Chemistry Vocabulary Crossword 2023-04-28

Chemistry Vocabulary Crossword crossword puzzle
Across
  1. study of heat and energy related to various physical transformations and chemical reactions
  2. unit of work or energy
  3. amount of heat needed to an lignin into vapor
  4. metric unit of temperature
  5. the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases
  6. used to measure amounts of heat transferred to or from a substance
  7. a temperature scale based on molecular motion
  8. energy that comes from a source and travels through space at the speed of light
Down
  1. the elements created in the end of a reaction
  2. amount of heat needed to turn a solid into a liquid
  3. heat energy
  4. a process which heat is transferred by movement of a heated fluid such as air or water
  5. the quantity of heat absorbed per unit mass of the material when its temperature increases
  6. energy in motion
  7. a reaction followed by the release of heat
  8. the substances that react in a chemical reaction
  9. a measurement of the energy content of food
  10. a reaction followed by the absorption of heat
  11. the process when heat energy is transmitted through collisions between atoms or molecules

19 Clues: heat energy • energy in motion • unit of work or energy • metric unit of temperature • a reaction followed by the release of heat • a measurement of the energy content of food • the elements created in the end of a reaction • amount of heat needed to an lignin into vapor • a reaction followed by the absorption of heat • a temperature scale based on molecular motion • ...

Chemical Reactions 2025-04-10

Chemical Reactions crossword puzzle
Across
  1. the amount of matter in an object
  2. the basic building block of matter
  3. a chemical substance that is formed by the reactants
  4. two or more atoms held together by chemical bonds
  5. a chemical _____ is a representation of the reactants and products of a reaction
  6. _____ change occurs but does not cidentitye identify of the substance.
Down
  1. _____ change a process during which a substance or substances change into one or more new substances.
  2. a chemical substance that enters into a reaction
  3. the amount of space that an object occupies
  4. particular characteristics of a material
  5. the stuff that makes up all living and nonliving objects
  6. to mix into another substance at the scale of individual particles

12 Clues: the amount of matter in an object • the basic building block of matter • particular characteristics of a material • the amount of space that an object occupies • a chemical substance that enters into a reaction • two or more atoms held together by chemical bonds • a chemical substance that is formed by the reactants • ...

chemistry 2022-11-02

chemistry crossword puzzle
Across
  1. two or more molecules
  2. A state of matter that does not have a defined shape , fast moving particles
  3. change in the substance
  4. example fire
  5. heat released in a chemical reaction is
Down
  1. A state of matter that does have a defined shape
  2. no property change
  3. A state of matter that does not have a defined shape moving particles
  4. heat absorbed in a chemical reaction is
  5. Basic unit of chemical element

10 Clues: example fire • no property change • two or more molecules • change in the substance • Basic unit of chemical element • heat absorbed in a chemical reaction is • heat released in a chemical reaction is • A state of matter that does have a defined shape • A state of matter that does not have a defined shape moving particles • ...

chemistry 2022-11-02

chemistry crossword puzzle
Across
  1. two or more molecules
  2. A state of matter that does not have a defined shape , fast moving particles
  3. change in the substance
  4. example fire
  5. heat released in a chemical reaction is
Down
  1. A state of matter that does have a defined shape
  2. no property change
  3. A state of matter that does not have a defined shape moving particles
  4. heat absorbed in a chemical reaction is
  5. Basic unit of chemical element

10 Clues: example fire • no property change • two or more molecules • change in the substance • Basic unit of chemical element • heat absorbed in a chemical reaction is • heat released in a chemical reaction is • A state of matter that does have a defined shape • A state of matter that does not have a defined shape moving particles • ...

Introduction to Lab 😁 2024-08-19

Introduction to Lab 😁 crossword puzzle
Across
  1. a portion of a well-mixed sample removed for testing
  2. substance or chemical being analyzed
  3. a physician that specializes in the nature and cause of disease
  4. free from all living organisms
  5. a blood sample in which the red blood cells have ruptured
  6. vitro within the laboratory
  7. means immediately
Down
  1. the study of cells
  2. determining the accuracy of an instrument
  3. capable of burning, corroding or damaging tissue by chemical reaction
  4. medical term for devices with sharp points or edges
  5. a substance used for a chemical reaction
  6. a biological sample such as blood, urine or body fluids

13 Clues: means immediately • the study of cells • vitro within the laboratory • free from all living organisms • substance or chemical being analyzed • a substance used for a chemical reaction • determining the accuracy of an instrument • medical term for devices with sharp points or edges • a portion of a well-mixed sample removed for testing • ...

Biology 2025-04-11

Biology crossword puzzle
Across
  1. only found in plant cells, photosynthesis occurs in this cell
  2. Respiration that doesn't require oxygen
  3. the sugar thats produced in photosynthesis
  4. uses sunlight to create energy
  5. type of respiration that requires oxygen
  6. consume sugars and other energies produced by other organisms
  7. substances that start a chemical reaction
  8. Powerhouse of the cell
Down
  1. the product of a chemical reaction
  2. Linked chemical process where energy from one drives another
  3. creates energy(ATP)produced by photosynthesis, can occur with or without oxygen
  4. uses the sugars that they produce themselves
  5. An energy that can be recharged and reused, Its like a battery

13 Clues: Powerhouse of the cell • uses sunlight to create energy • the product of a chemical reaction • Respiration that doesn't require oxygen • type of respiration that requires oxygen • substances that start a chemical reaction • the sugar thats produced in photosynthesis • uses the sugars that they produce themselves • ...

Unit 4 Wrap Up 2025-02-06

Unit 4 Wrap Up crossword puzzle
Across
  1. all gasses held to earth by its gravity
  2. the technical or scientific term for the rotting process
  3. the most common molecule used for growth and energy (its a sugar)
  4. carbon can be naturally transferred from the geosphere to the atmosphere through these
  5. A life form that extracts energy from rotting remains
  6. an element used to build chloroplasts and DNA, most of it is inert
  7. all water on earth, regardless of condition or location
  8. an element that allows for complex molecules and proteins to form
  9. a natural water purification process that depends upon the sun
  10. water vapor goes through this process at higher altitudes and cold temperatures, forms clouds
  11. the chemical reaction that stores energy by building glucose
  12. when water vapor is forced out out of the atmosphere and returns to Earth's surface
Down
  1. all living things on earth, regardless of size
  2. when marine animals die, their bones and shells sink to the bottom and become part of this
  3. the organelle in plant cells only that runs the photosynthesis reaction
  4. the organelle in plant and animal cells that runs the respiration reaction
  5. the chemical reaction that extracts energy from glucose
  6. all rock, soil, minerals, and fossil fuels on or in Earth
  7. openings in the surface of leaves that allow plants to exchange gases with their atmosphere
  8. the blood protein that carries oxygen, can be damaged by too many nitrates in water
  9. a greenhouse gas, its chemical formula is CH4
  10. marine animals can pull carbon and calcium out of ocean water to create these

22 Clues: all gasses held to earth by its gravity • a greenhouse gas, its chemical formula is CH4 • all living things on earth, regardless of size • A life form that extracts energy from rotting remains • the chemical reaction that extracts energy from glucose • all water on earth, regardless of condition or location • the technical or scientific term for the rotting process • ...

science-changes in matter 2023-07-27

science-changes in matter crossword puzzle
Across
  1. is a substance that can accept hydrogen
  2. they have particles to create an element called hydrogen
  3. solid, liquid and gas, it makes up everything in the universe
  4. a chemical reaction where the substances release energy as heat
  5. a process in which one or more chemicals react
  6. a chemical reaction that produces heat and light
Down
  1. a process in which one or more chemicals react
  2. is any substance that is consumed up in a reaction
  3. a compound formed from multiple chemicals
  4. a chemical reaction that takes in energy from surroundings

10 Clues: is a substance that can accept hydrogen • a compound formed from multiple chemicals • a process in which one or more chemicals react • a process in which one or more chemicals react • a chemical reaction that produces heat and light • is any substance that is consumed up in a reaction • they have particles to create an element called hydrogen • ...

Chemical Reactions 2024-12-10

Chemical Reactions crossword puzzle
Across
  1. A notation that uses chemical symbols and numbers to represent the type and number of atoms present in a substance
  2. The process by which one or more substances change to produce one or more different substances
  3. to prevent the loss of something
  4. A substance produced during a chemical reaction
  5. A substance that takes part in and undergoes change during a reaction
  6. A number written below and to the right of a chemical symbol that shows the number of atoms present
Down
  1. The mass of all reactants must equal the mass of all products. Matter is neither created nor destroyed.
  2. Formed when two or more atoms join together chemically
  3. Chemical formulas and symbols written to represent a reaction
  4. the study of matter and its properties
  5. A number placed in front of a chemical symbol or formula in order to balance the equation

11 Clues: to prevent the loss of something • the study of matter and its properties • A substance produced during a chemical reaction • Formed when two or more atoms join together chemically • Chemical formulas and symbols written to represent a reaction • A substance that takes part in and undergoes change during a reaction • ...

Alisson Jiménez. Oxidation 2022-01-18

Alisson Jiménez. Oxidation crossword puzzle
Across
  1. is a substance or compound that causes a chemical reaction
  2. It is a chemical element found in the air
  3. It is a process where a substance changes its molecular structure and its bonds, appearing in a new way
  4. Action of transforming
  5. Are transformations that can change the state of any material
  6. Result of a job or operation
  7. It is a chemical element and its compounds
Down
  1. Thermal degree or level of a body or place
  2. Is a symbolic description of a chemical reaction
  3. Process by which elements in a system undergo chemical changes
  4. Relationship between two or more people or things
  5. It is a sequence to reach a goal

12 Clues: Action of transforming • Result of a job or operation • It is a sequence to reach a goal • It is a chemical element found in the air • Thermal degree or level of a body or place • It is a chemical element and its compounds • Is a symbolic description of a chemical reaction • Relationship between two or more people or things • ...

Lauren's Science Vocabulary Crossword Puzzle 2013-09-09

Lauren's Science Vocabulary Crossword Puzzle crossword puzzle
Across
  1. A mixture of two or more substances.
  2. The chemical element with an atomic number 2.
  3. A subatomic particle composed of nucleons and atoms.
  4. A chemical change which forms new substances.
  5. A chemical link between two atoms caused by electrostatic force.
  6. A numerical measure of a physical or chemical property.
  7. Starting material in a chemical reaction.
  8. Two or more atoms which have chemically combined to form a single species.
  9. The basic unit of a chemical element.
Down
  1. The chemical element of atomic number 8.
  2. Another term for atomic mass.
  3. A substance that cannot be broken down by chemical means.
  4. A table of the chemical elements arranged in order of atomic number.
  5. The number of protons in the nucleus of an atom.
  6. A colorless, odorless, highly flammable gas.
  7. The substance in which the solute is dissolved.
  8. A subatomic particle without an electric charge.
  9. The substance that is dissolved in a solution.

18 Clues: Another term for atomic mass. • A mixture of two or more substances. • The basic unit of a chemical element. • The chemical element of atomic number 8. • Starting material in a chemical reaction. • A colorless, odorless, highly flammable gas. • The chemical element with an atomic number 2. • A chemical change which forms new substances. • ...

Lauren's Science Vocabulary Crossword Puzzle 2013-09-09

Lauren's Science Vocabulary Crossword Puzzle crossword puzzle
Across
  1. The chemical element of atomic number 8.
  2. The substance that is dissolved in a solution.
  3. The chemical element with an atomic number 2.
  4. A subatomic particle without an electric charge.
  5. A numerical measure of a physical or chemical property.
  6. Another term for atomic mass.
  7. The basic unit of a chemical element.
  8. A table of the chemical elements arranged in order of atomic number.
  9. The substance in which the solute is dissolved.
  10. Two or more atoms which have chemically combined to form a single species.
  11. A colorless, odorless, highly flammable gas.
Down
  1. Starting material in a chemical reaction.
  2. A chemical link between two atoms caused by electrostatic force.
  3. A chemical change which forms new substances.
  4. A substance that cannot be broken down by chemical means.
  5. A subatomic particle composed of nucleons and atoms.
  6. The number of protons in the nucleus of an atom.
  7. A mixture of two or more substances.

18 Clues: Another term for atomic mass. • A mixture of two or more substances. • The basic unit of a chemical element. • The chemical element of atomic number 8. • Starting material in a chemical reaction. • A colorless, odorless, highly flammable gas. • A chemical change which forms new substances. • The chemical element with an atomic number 2. • ...

Science Revision 2020-06-03

Science Revision crossword puzzle
Across
  1. powerhouse of the cell
  2. has the chemical symbol Ag
  3. holds the DNA of a cell
  4. the science that studies forces and movement
  5. the reaction gives out heat
Down
  1. has the chemical symbol Au
  2. the science that studies chemicals and their reactions
  3. the science that studies living things and organisms
  4. the reaction absorbs heat
  5. has the chemical symbol Fe

10 Clues: powerhouse of the cell • holds the DNA of a cell • the reaction absorbs heat • has the chemical symbol Au • has the chemical symbol Ag • has the chemical symbol Fe • the reaction gives out heat • the science that studies forces and movement • the science that studies living things and organisms • the science that studies chemicals and their reactions

Rates of reaction 2021-02-16

Rates of reaction crossword puzzle
Across
  1. The colour of sulfur powder
  2. The speed of a reaction
  3. Surface area increases when we make lumps of solid ....
  4. The energy needed by particles in order for a reaction to occur
  5. This is the type of variable that we keep the same
  6. The number of particles in a particular volume of a gas
  7. This is a very slow reaction that involves the corrosion of iron
  8. The substances that are made in a reaction
  9. The number of particles in a particular volume of solution
Down
  1. Increasing this gives the reacting particles more energy
  2. Particles do this when they bump into each other
  3. This is a substance that can be added to a reaction to speed it up. It remains unchanged in the reaction.
  4. This is the variable that we measure
  5. This is the variable that we change
  6. The volume of a gas can be measured using a gas ....
  7. This is what we call a collision in which a chemical reaction takes place
  8. The starting materials in a reaction

17 Clues: The speed of a reaction • The colour of sulfur powder • This is the variable that we change • This is the variable that we measure • The starting materials in a reaction • The substances that are made in a reaction • Particles do this when they bump into each other • This is the type of variable that we keep the same • The volume of a gas can be measured using a gas .... • ...

Photosynthesis 2022-06-07

Photosynthesis crossword puzzle
Across
  1. the most abundant light-absorbing pigment
  2. chemical reactions and processes occurring at the cellular level
  3. this gas was not present in Earth's early atmosphere, but is essential to life
  4. the viscous fluid inside of the chloroplast
  5. metabolic reactions that allow autotrophs to harness the sun's energy
  6. the interior of a thylakoid
  7. pores in leaves that allow for gas exchange
  8. facilitates a chemical reaction, but is not one of the reactants
  9. common nickname for ribulose 1,5-bisphosphate carboxylase/oxygenase
  10. a reaction where energy is consumed
  11. biological catalyst
Down
  1. a reaction where energy is released
  2. also known as PGAL and this is the 3-carbon product of photosynthesis
  3. creates inefficiency during hot days when rubisco combines with oxygen rather than carbon dioxide
  4. to lose an electron
  5. flattened membrane sacks found within the chloroplast
  6. ___________ pigments transfer absorbed energy to chlorophyll a
  7. to gain an electron
  8. _______ cycle - where carbon is fixed into complex molecules.

19 Clues: to lose an electron • to gain an electron • biological catalyst • the interior of a thylakoid • a reaction where energy is released • a reaction where energy is consumed • the most abundant light-absorbing pigment • the viscous fluid inside of the chloroplast • pores in leaves that allow for gas exchange • flattened membrane sacks found within the chloroplast • ...

KINETICS 2016-04-13

KINETICS crossword puzzle
Across
  1. Non- continuous method of detecting change during a reaction.
  2. This was developed to help explain how changes in conditions affect the rate of reaction.
  3. A high energy molecular structure formed as a result of successful collision of reactant molecule.
  4. A technique used to stop a reaction at the moment a sample is withdrawn.
  5. Works by passing light through the solution being studied.
  6. The reciprocal of time.
  7. Is the energy that must be overcome for a chemical reaction to occur.
  8. In the reaction of zinc with dilute hydrochloric acid, what is the preferred physical state of the metal to ensure rapid reaction.
  9. The temperature in kelvin (K).
  10. He established the relationship between absolute temperature and reaction rate.
Down
  1. The energy associated with movement of particles.
  2. This formation of this solution is the end point and will hide the cross.
  3. Refers to the orientation of the particles with respect to each other
  4. A substance that changes the rate of reaction.
  5. A biological catalyst.
  6. The effect of raising temperature on reaction rate.
  7. He is credited with coining the term, catalyst.
  8. This method of measuring rate of reaction cannot be used where Hydrogen gas is evolved.
  9. Scottish Scientist who developed distribution curve for kinetic energy values.

19 Clues: A biological catalyst. • The reciprocal of time. • The temperature in kelvin (K). • A substance that changes the rate of reaction. • He is credited with coining the term, catalyst. • The energy associated with movement of particles. • The effect of raising temperature on reaction rate. • Works by passing light through the solution being studied. • ...

Year 10 Chemistry 2013-05-26

Year 10 Chemistry crossword puzzle
Across
  1. A substance made by mixing other substances together.
  2. The degree or intensity of heat present in a substance or object.
  3. The formation of a solid in a solution or inside another solid during a chemical reaction or by diffusion in a solid.
  4. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  5. A table of the chemical elements arranged in order of atomic number.
  6. A measure, quantity, or frequency, typically one measured against some other quantity or measure.
  7. The condition of being protected from or unlikely to cause danger, risk, or injury.
Down
  1. A substance that takes part in and undergoes change during a reaction.
  2. A minute portion of matter.
  3. An apparent displacement or difference in the apparent position of an object viewed along two different lines of sight.
  4. A substance produced during a natural, chemical, or manufacturing process.
  5. The continuous physical force exerted on or against an object by something in contact with it.
  6. Approximately equivalent to the number of protons and neutrons in the atom.

13 Clues: A minute portion of matter. • A substance made by mixing other substances together. • The degree or intensity of heat present in a substance or object. • A table of the chemical elements arranged in order of atomic number. • A substance that takes part in and undergoes change during a reaction. • ...

Chapter 6/7 Vocab 2023-04-14

Chapter 6/7 Vocab crossword puzzle
Across
  1. notation that shows what elements a compound contains and the ratio of the atoms or ions of these elements in the compound
  2. a diagram of an atom, ion or molecule in which each dot represents a valence electron
  3. a representation of a chemical reaction in which the reactants and products are expressed as formulas
  4. the attraction between a metal cation and the shared electrons that surround it
  5. a chemical bond in which two atoms share a pair of valence electrons
  6. a mixture of two or more elements, at least one of which is a metal, that has the characteristic properties of a metal
  7. the force that holds cations and anions together
Down
  1. a substance that undergoes change in a chemical reaction
  2. the force that holds atoms or ions together as a unit
  3. a neutral group of atoms that are joined together by one or more covalent bonds
  4. an atom or group of atoms that has a positive or negative charge
  5. the energy stored in chemical bonds
  6. new substances formed as a result of a chemical reaction

13 Clues: the energy stored in chemical bonds • the force that holds cations and anions together • the force that holds atoms or ions together as a unit • a substance that undergoes change in a chemical reaction • new substances formed as a result of a chemical reaction • an atom or group of atoms that has a positive or negative charge • ...

Vocab ch 6&7 2023-05-19

Vocab ch 6&7 crossword puzzle
Across
  1. - the energy stored in chemical bonds
  2. - a chemical bond in which two atoms share a pair of valence electrons
  3. - new substances formed as a result of a chemical reaction
  4. - the attraction between a metal cation and the shared electrons that surround it
  5. - the force that holds atoms or ions together as a unit
  6. - a representation of a chemical reaction in which the reactants and products are expressed as formulas
Down
  1. - notation that shows what elements a compound contains and the ratio of the atoms or ions of these elements in the compound
  2. an atom or group of atoms that has a positive or negative charge
  3. - a substance that undergoes change in a chemical reaction
  4. - the force that holds cations and anions together
  5. a diagram of an atom, ion or molecule in which each dot represents a valence electron
  6. - a mixture of two or more elements, at least one of which is a metal, that has the characteristic properties of a metal
  7. - a neutral group of atoms that are joined together by one or more covalent bonds

13 Clues: - the energy stored in chemical bonds • - the force that holds cations and anions together • - the force that holds atoms or ions together as a unit • - a substance that undergoes change in a chemical reaction • - new substances formed as a result of a chemical reaction • an atom or group of atoms that has a positive or negative charge • ...

Reactions Between Acids and Bases 2021-05-10

Reactions Between Acids and Bases crossword puzzle
Across
  1. The chemical formula for sodium hydroxide
  2. Buildings made of this are damaged by acid rain
  3. Experiment to combine an acid and a base
  4. _________ + sodium hydroxide --> sodium chloride + water
  5. Animal killed by acid rain
  6. Acid + base --> __________ + water
  7. Occurs when an acid and a base are combined
Down
  1. Type of converter in cars used to remove harmful oxides of nitrogen from exhaust fumes
  2. Burning these contributes to acid rain
  3. Equipment that holds the base during a reaction
  4. One type of acid present in acid rain
  5. Equipment that holds the acid during a reaction
  6. A measure of how acidic or basic a substance is
  7. Used to show a colour change in a chemical reaction

14 Clues: Animal killed by acid rain • Acid + base --> __________ + water • One type of acid present in acid rain • Burning these contributes to acid rain • Experiment to combine an acid and a base • The chemical formula for sodium hydroxide • Occurs when an acid and a base are combined • Equipment that holds the base during a reaction • ...

"Oren Chemistry Quarterly Review" 2022-03-21

"Oren Chemistry Quarterly Review" crossword puzzle
Across
  1. The ability to dissolve other substances.
  2. A form that doesn't usually change, usually found in the form of a gas.
  3. A substance made when others are mixed together.
  4. The reaction after the reactant caused the reaction.
  5. a chemical substance.
  6. A substance, which may be liquid or solid.
  7. the ingredients to a substance.
  8. How much of a substance is dissolved.
  9. The ability to dissolve.
Down
  1. A process that changes the phase of the of the subject.
  2. A substance that dissolves into another substance.
  3. A substance that causes the reaction.
  4. Mass the mass of a chemical element
  5. A metal that is made up of two or more metallic substances.

14 Clues: a chemical substance. • The ability to dissolve. • the ingredients to a substance. • Mass the mass of a chemical element • A substance that causes the reaction. • How much of a substance is dissolved. • The ability to dissolve other substances. • A substance, which may be liquid or solid. • A substance made when others are mixed together. • ...