chemical reaction Crossword Puzzles
Unit 2 2022-09-26
Across
- function is to shuttle electrons from NADH to FADH2
- all the gasses surrounding earth
- pigment in chloroplasts
- substance at the beginning of a chemical reaction
- type of organism that is able to make its own food
- a situation in which oxygen is present
- releases energy by breaking down food molecules
- nutrient forms backbone for all macromolecules in living things
- type of organism that must eat other organisms to obtain energy
- water, soil, living things,(not air)
- site of cellular respiration
- converts light energy into chemical energy, where photosynthesis takes place
- alcoholic, lactic acid, acetic acid, alkaline
- all the soil and rocks on earth
- uses light energy to make molecules needed for photosynthesis
Down
- one of the principal chemical compounds the cells use to store and release energy, made up of adenosine, 5 carbon sugar, and 3 phosphate groups
- describes a situation in which oxygen is not present
- first step in the breakdown of glucose
- organisms that break down biotic compounds into abiotic compounds
- made up of adenosine, 5 carbon sugar, and 2 phosphate groups
- substances created during a chemical reaction
- AKA the Calvin cycle
- process of using light energy to make glucose
- used in proteins and nucleic acids, must be "fixed" for living things to use, often limited
- all water on earth
- citric acid cycle
- all living things on earth
27 Clues: citric acid cycle • all water on earth • AKA the Calvin cycle • pigment in chloroplasts • all living things on earth • site of cellular respiration • all the soil and rocks on earth • all the gasses surrounding earth • water, soil, living things,(not air) • first step in the breakdown of glucose • a situation in which oxygen is present • ...
Chemical Properties 2023-10-18
Across
- - Process of forming ions in a solution.
- - Degree of harm a substance can cause to living organisms.
- - Not reactive under normal conditions.
- - Production of gas bubbles in a liquid.
- - Ability to be shaped or hammered into thin sheets.
- - Shiny appearance of a material.
- - Ability to increase the rate of a chemical reaction.
- - Attracting or dissolving in water.
- - Easily breaking or shattering when stressed.
- - Absorbing moisture from the air to the point of dissolving.
- - Resistance to decomposition or chemical change.
- - Absorbing moisture from the air.
Down
- - Degree of alkalinity or acidity, measured on the pH scale.
- - Not capable of burning easily.
- - Reaction with oxygen or other oxidizing agents.
- - How readily a substance undergoes chemical reactions.
- - Emitting radiation due to unstable atomic nuclei.
- - Easily ignitable and capable of burning.
- - Ability to catch fire and burn.
- - Ease of transitioning from a liquid to a vapor state.
- - Gradual deterioration of materials due to chemical reactions.
- - Susceptibility to burning in the presence of oxygen.
- - Repelling water.
- - Ability to dissolve in a solvent.
- - Ability to be stretched into a wire.
- - Poses a risk to human health when exposed.
- - Ability to stick to surfaces.
- - Ability to conduct electricity or heat.
- - Reactions involving the transfer of electrons.
- - Degree of acidity or alkalinity, measured on the pH scale.
30 Clues: - Repelling water. • - Ability to stick to surfaces. • - Not capable of burning easily. • - Ability to catch fire and burn. • - Shiny appearance of a material. • - Absorbing moisture from the air. • - Ability to dissolve in a solvent. • - Attracting or dissolving in water. • - Ability to be stretched into a wire. • - Not reactive under normal conditions. • ...
Chemistry final crossword 2020-06-14
Across
- measure of the average energy of random motion of particles of matter.
- statement.
- change from liquid to a solid.
- a definite shape and a definite volume.
- very small region located at the center of an atom.
- mad of tow or more substance that are together in the same place but are not chemically combined.
- of two or more substances that are together by chemical bonds.
- that has mass and takes up space.
- distinct type of molecular compound.
- to the closeness of measurements to the correct or accepted value of the quantity measured.
- substance made from a chemical reaction.
Down
- force of its outward push divided by the area of the container.
- ability to do work or cause change.
- that takes place only on the surface of a liquid.
- found in the nucleus of the atom.
- of the senses to obtain information.
- change in state from a solid to a liquid.
- negatively charged subatomic particle.
- subatomic particle found in the nucleus of every atom except that of simple hydrogen.
- chemical reaction between a fuel and oxygen.
- substances that reacts in a chemical change use of the senses to obtain information.
- measure of the amount of matter.
- basic unit of matter.
- has a definite volume but no shape of its own.
- fluid that can change volume very easily.
25 Clues: statement. • basic unit of matter. • change from liquid to a solid. • measure of the amount of matter. • found in the nucleus of the atom. • that has mass and takes up space. • ability to do work or cause change. • of the senses to obtain information. • distinct type of molecular compound. • negatively charged subatomic particle. • a definite shape and a definite volume. • ...
Science Crossword - Chemistry, Physics, and Energy 2023-05-19
Across
- Atoms with a positive or negative charge
- Chemicals you start with before the reaction in chemical equation
- Elements on periodic table can be grouped into these based on their chemical properties.
- Gases or brittle solids at room temperature, and good insulators
- Combination of two or more pure substances that are not chemically combined
- Positively charged ions
- New chemicals formed by the reaction in chemical equation
- Number of protons an atom has
- Atoms of the same elements that have a different atomic mass than found on the periodic table
- Vertical columns of elements on the periodic table
- Properties that are determined by the use of five senses
- Russian Chemist who developed periodic table in 1869, in order of increasing atomic mass.
- Good conductors of heat, exist as solids at room temperature
Down
- Average masses of all the isotopes of an element
- Simplest form of pure substance
- Ability to do work or cause change
- Horizontal rows of elements on periodic table
- Contains protons and neutrons
- Properties that are determined by a substance's ability to react with other substances.
- Pure substance that is unions of two or more different elements. Can be broken into simpler substances.
- Have properties of both metals and non-metals. Exist as solids at room temperature
- Negatively charged ions
- Energy that is transferred between objects that are different temperatures
23 Clues: Positively charged ions • Negatively charged ions • Contains protons and neutrons • Number of protons an atom has • Simplest form of pure substance • Ability to do work or cause change • Atoms with a positive or negative charge • Horizontal rows of elements on periodic table • Average masses of all the isotopes of an element • ...
Language of Chemistry 2016-05-13
Across
- CO is symbol for
- Anions which contain single atoms with a negative charge
- A union who recommended method to write atomic symbols of elements
- This ion is required in our body for strengthening of bones
- CCl4 is symbol for
- Chemist who simplified the system by using letters of the alphabets alone
- Chemist who represented the atoms of different elements using symbols
- NaCl is symbol for
- Co2 is symbol for
Down
- an instrument which can directly produce the image of the atom that lie on the surface of an element
- An electrically charged atom of an element
- The new substances produced in the reaction
- The ultimate particle of a chemical compound
- PCl3 is symbol for
- The method of representing a chemical reaction with the help of symbols and formulae of the substances involved in it
- The substances which combine or react
- A compound made up of only two elements
- An abbreviation or short representation of the chemical name of an element is known as
- Groups of atoms that react as single atoms and keep their identity in many reactions
- The ultimate particle of an element
20 Clues: CO is symbol for • Co2 is symbol for • PCl3 is symbol for • CCl4 is symbol for • NaCl is symbol for • The ultimate particle of an element • The substances which combine or react • A compound made up of only two elements • An electrically charged atom of an element • The new substances produced in the reaction • The ultimate particle of a chemical compound • ...
Weathering, Erosion & Deposition 2023-11-16
Across
- Where a body of water meets the land
- A curve in a river or stream
- How caves are formed
- Rain, Acid rain, snow, hail...
- Where sediment is deposited at the mouth of a river
- A plant that dissolves minerals
- A rock spear on the ceiling
- Where sediment is deposited at the foot of a mountain
- Breaking down of rocks
- a burrowing reptile
- Sanding away rock by wind or water
- Weathering through reactions
- an intelligent marine mammal
- Erosion by non-plant life
- When wind or water drops sediment
- a digging bird
Down
- A landform in the water parallel to the mainland
- When water gets into cracks, freezes and breaks a rock
- Weathering through force and motion
- A pile of sand formed by wind
- an endangered marine mammal
- A form of precipitation that causes a chemical reaction
- What comes from rocks through weathering
- Flaking away rock pushed upwards from pressure
- A chemical reaction between minerals, water and oxygen
- A rock spear on the floor
- Where sand is washed upon the shoreline
- Weathering by non-animal life
- Taking away soil, sand or dirt
29 Clues: a digging bird • a burrowing reptile • How caves are formed • Breaking down of rocks • A rock spear on the floor • Erosion by non-plant life • an endangered marine mammal • A rock spear on the ceiling • A curve in a river or stream • Weathering through reactions • an intelligent marine mammal • A pile of sand formed by wind • Weathering by non-animal life • ...
Semester 1 8th grade Science Review 2025-12-17
Across
- composed of different kinds of molecules, can be physically separated
- a type of change that doesn't make a new substance
- an overgrowth of algae caused by excess nutrients in water
- 2 or more atoms bonded together
- all the water on Earth
- an area of land that drains into a river and its tributaries
- 1 kind of atom
- a type of change that makes a new substance
- coal, oil, and natural gas are these types of fuel
- what you start with in a chemical reaction
- composed of only one kind of molecule, can't be physically separated
Down
- the amount of suspended sediment in the water
- plant nutrients that cause eutrophication in high amounts
- building block of all matter
- Energy from burning recently living things like trees or ethanol from corn
- living things used to assess water health
- how acidic or basic water is
- a form of energy that produces radioactive waste
- what you end with in a chemical reaction
- able to be replenished
- Energy from the heat within Earth
- 2 or more DIFFERENT kinds of element bonded together
- not able to be replenished
- Energy from the sun
24 Clues: 1 kind of atom • Energy from the sun • able to be replenished • all the water on Earth • not able to be replenished • building block of all matter • how acidic or basic water is • 2 or more atoms bonded together • Energy from the heat within Earth • what you end with in a chemical reaction • living things used to assess water health • what you start with in a chemical reaction • ...
Organic Chemistry 2022-01-26
Across
- any chemical species that seeks electrons
- The most simple ratio of number of atoms in a compound
- A species that is acted upon in a chemical reaction
- A visual representation of atoms and their bonds in a molecule
- a process in which two bonded atoms split, keeping their electrons as radicals
- any chemical species that seeks positively charged nuclei
- A combination of a halogen, or hydrogen halide to an unsaturated portion of a molecule
- Any non aliphatic organic compound
Down
- a molecular fragment that departs with a pair of electrons in heterolytic bond cleavage
- a nucleophillic subsitution
- Organic compounds that feature only C-C single bonding
- a process in which two bonded atoms split, keeping their electrons as radicals
- The linear list of atoms in a compound
- a reaction entailing the swapping of an atom or substituent on one position of a carbon
- Carbon based aromatic structures based on sextuple rings
- Any saturated/single bonded component of an organic compound
16 Clues: a nucleophillic subsitution • Any non aliphatic organic compound • The linear list of atoms in a compound • any chemical species that seeks electrons • A species that is acted upon in a chemical reaction • Organic compounds that feature only C-C single bonding • The most simple ratio of number of atoms in a compound • ...
Photosynthesis/Cellular Respiration 2025-08-28
Across
- A substance that is consumed or changed during a chemical reaction
- The process where light energy converts carbon dioxide and water into glucose and oxygen
- A biological catalyst that speeds up chemical reactions in cells
- The organelle in plant cells where photosynthesis takes place
- A substance that is formed as a result of a chemical reaction
- Requiring the presence of oxygen
- Occurring without the presence of oxygen
- The organelle in eukaryotic cells responsible for cellular respiration
- A substance that absorbs specific wavelengths of light.
Down
- The process that breaks down glucose in the presence of oxygen to release energy
- An organism that obtains energy by consuming other organisms
- A simple sugar that serves as a primary source of energy for cells
- The main energy-carrying molecule used by cells for various processes
- Small pores on plant leaves that allow for gas exchange
- An organism that produces its own food, usually through photosynthesis
15 Clues: Requiring the presence of oxygen • Occurring without the presence of oxygen • Small pores on plant leaves that allow for gas exchange • A substance that absorbs specific wavelengths of light. • An organism that obtains energy by consuming other organisms • The organelle in plant cells where photosynthesis takes place • ...
Chemical Puzzle 2023-04-14
Across
- a substance composed of two or more elements
- two or more atoms bonded together
- light or heat
- substances you start with before the chemical reaction
- ability to react with other elements
- substances you end with after the chemical reaction
Down
- anything that has a mass and takes up space
- center of the atoms
- make up all the matter in the universe
- ability to reflect light
- cloud outer layers of atoms
11 Clues: light or heat • center of the atoms • ability to reflect light • cloud outer layers of atoms • two or more atoms bonded together • ability to react with other elements • make up all the matter in the universe • anything that has a mass and takes up space • a substance composed of two or more elements • substances you end with after the chemical reaction • ...
Dictionary 2024-10-07
Across
- particles used as building blocks
- when 2 or more elements combine
- indicates the amount of an atom in a molecule
- words) a singular element
- a substance that is unbreakable
- a number that represents the amount of molecules
- the amount of matter in an item
Down
- the reaction of separating different elements
- a grouping of atoms bonded together
- takes part in chemical reaction, on left side of arrow
- the result of chemical reactions
11 Clues: words) a singular element • when 2 or more elements combine • a substance that is unbreakable • the amount of matter in an item • the result of chemical reactions • particles used as building blocks • a grouping of atoms bonded together • the reaction of separating different elements • indicates the amount of an atom in a molecule • ...
Chemistry Crossword puzzle by Pratham Taluja 10H 2022-07-17
Across
- " ZnO + C -> Zn + CO" name the reaction
- A chemical reaction in which a more reactive element displaces a less reactive element from its compound
- A reaction in which heat is released
- Number of atoms of each element are same on both sides of the equation
- A substance which increases the rate of the reaction without itself undergoing any change.
Down
- New substance formed during chemical reaction
- Gain of oxygen or loss of hydrogen
- A reaction in which a single product is formed from 2 or more reactants
8 Clues: Gain of oxygen or loss of hydrogen • A reaction in which heat is released • " ZnO + C -> Zn + CO" name the reaction • New substance formed during chemical reaction • Number of atoms of each element are same on both sides of the equation • A reaction in which a single product is formed from 2 or more reactants • ...
Chemistry Vocabulary 2025-04-23
Across
- Identical molecules and substances.
- Temperature/ amount of energy that is transferred.
- change Bonds, new/ broken.
- Study with chemicals.
- change Change affecting the form.
- Species formed from chemical reaction.
- Energy released, heat.
- Reactant, low.
- Group of atoms.
- something visible.
Down
- Space/ amount of something in an object.
- The force that holds things together.
- property Property of a substance.
- Physical blend of multiple substances.
- Measurement, hot/cold.
- Matter, weight.
- Action, sticking together.
- Small, basic building block.
- Substance that converts into something new.
19 Clues: Reactant, low. • Matter, weight. • Group of atoms. • something visible. • Study with chemicals. • Measurement, hot/cold. • Energy released, heat. • change Bonds, new/ broken. • Action, sticking together. • Small, basic building block. • change Change affecting the form. • property Property of a substance. • Identical molecules and substances. • The force that holds things together. • ...
Cooking 2021-02-11
Across
- often people think this bread is called this because it’s faster to make
- and ingredient that is white and fluffy
- main method to create the dough
- differs from quick
- a small ingredient to add a chocolate taste to muffins
- used to measure dry ingredients
Down
- a liquid ingredient that you usually dip Oreos in
- used to measure liquid ingredients
- Can be used to make the chemical reaction
- where you usually bake baked goods
- another thing that can cause a chemical reaction
- this ingredient is considered a solid fat
- butter is a prime example of what this is
- this is base of the baked good
14 Clues: differs from quick • this is base of the baked good • main method to create the dough • used to measure dry ingredients • used to measure liquid ingredients • where you usually bake baked goods • and ingredient that is white and fluffy • Can be used to make the chemical reaction • this ingredient is considered a solid fat • butter is a prime example of what this is • ...
Science multiple assignment 2023-06-24
Across
- piece of glass or other transparent substance that is used to form an image of an object by focusing rays of light from the object.
- rx^n when one reactant breaks down into two or more products
- The chemical substances which are formed due to a chemical reaction between two or more chemical substances
- the ratio of the height of image to the height of object
- a fist-sized organ that pumps blood throughout your body
- the process of obtaining the food necessary for health and growth.
- To get rid of waste material from the blood, tissues, or organs by a normal discharge
- displacement rx^n type of chemical reaction in which the reactant ions exchange places to form new products
Down
- the change in direction of a wave passing from one medium to another caused by its change in speed
- the movement of any substance from one place to another
- rx^n Reactions in which two or more reactants combine to form one product
- a substance that takes part in and undergoes change during a reaction
- The process of breaking down food into substances the body can use for energy, tissue growth, and repair.
- a reflective surface that bounces off light, producing either a real image or a virtual image
- that point, where the light rays coming from an object meet or appears to meet after reflection or refraction
15 Clues: the movement of any substance from one place to another • the ratio of the height of image to the height of object • a fist-sized organ that pumps blood throughout your body • rx^n when one reactant breaks down into two or more products • the process of obtaining the food necessary for health and growth. • ...
Photophosphorylation 2015-11-29
Across
- site of photophosphorylation
- major accessory pigment that absorbs wavelengths chlorophyll cannot absorb
- type of chlorophyll that transfers light energy to neighboring chlorophyll
- transfers electrons from reduced ferredoxin to NADP+
- reaction occurs when plants are not receiving light
- type of reaction center in bacteria that passes electrons through a quinone to an iron-sulfur center
- complex linking PSI and PSII also responsible for driving protons across the plasma membrane
- more loosely bound plastoquinone
- the capture of solar energy by photosynthetic organisms and its conversion to chemical energy
- about the amount of NADPH produced in noncyclic photophosphorylation
- for every _____ photons absorbed, one electron is transferred from H2O to NADP+
- excitation of this photosystem's reaction center drive electrons to ferrodoxin and produce NADPH
- about the amount of ATP produced in noncyclic photophosphorylation
- photophosphorylation that involves both photosystems
- responsible for driving ATP production
Down
- after the electron passes through the b6f complex, it goes through this protein
- these organisms release carbon dioxide
- photophosphorylation where ATP synthesis is driven by cyclic electron flow through PSI
- element that occupies the central position in a chlorophyll molecule
- type of reaction center in bacteria that passes electrons through pheophytin to a quinine
- ultimate source of electrons passed to NADPH in plants during photosynthesis is water
- main light absorbing pigment in photophosphorylation
- responsible for reducing NADP+ to NADPH
- complex containing chlorophyll associated with other proteins and membrane
- this complex is catalyzed by a manganese and calcium containing protein
- excitation of this photosystem's reaction center drive electrons through the cytochrome b6f complex
- pumped across thylakoid membrane to create energy through an electrochemical potential
- site where light energy is converted to chemical energy
- reaction that occurs when plants receive sunlight
- this complex is responsible for passing four electrons one at a time to PSII across the thylakoid membrane
- proteins that carry electrons between the two photosystems
31 Clues: site of photophosphorylation • more loosely bound plastoquinone • these organisms release carbon dioxide • responsible for driving ATP production • responsible for reducing NADP+ to NADPH • reaction that occurs when plants receive sunlight • reaction occurs when plants are not receiving light • transfers electrons from reduced ferredoxin to NADP+ • ...
Stoichiometry 2022-11-29
Across
- the mass in grams of one mole of a compound
- a substance that has a fixed chemical composition
- an atom or group of atoms that has an electric charge
- the quantitative study of the reactants and products involved in a chemical reaction
- a formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms
- tells you by mass what percent of each element is present in a compound
Down
- a number used to change one set of units to another by multiplying or dividing
- the approximate number of nucleons in one gram of ordinary matter
- the chemical formula of an ionic compound that lists the ions in the lowest ratio that equals a neutral electrical charge
- a particle of matter that uniquely defines a chemical element
- a compound in which water molecules are chemically bound to another compound or an element
- contains the same number of each type of atoms on both the left and right sides of the reaction arrow
- represents the number of each atom present in a given molecule
- the relationship between the quantities of reactants and products before, during, and following chemical reactions
- a standard scientific unit for measuring large quantities of very small entities
- occur when chemical bonds between atoms are formed or broken
16 Clues: the mass in grams of one mole of a compound • a substance that has a fixed chemical composition • an atom or group of atoms that has an electric charge • occur when chemical bonds between atoms are formed or broken • a particle of matter that uniquely defines a chemical element • represents the number of each atom present in a given molecule • ...
Chemistry 2018-02-26
Across
- A substance that reacts with a base to form a salt and water only. Any chemical substance that can donate protons or accept electrons.
- A species formed by the chemical combination of two or more elements.
- A substance that reacts with an acid to form a salt and water only. Any chemical substance that can accept protons or donate electrons.
- A non-homogenous mixture formed by immiscible liquids.
- The homogeneous mixture of a solute, which can be a solid or a liquid or a gas, dissolved in a solvent.
- A solid substance that has been separated from a liquid in a chemical process
- A substance used to cause a chemical reaction, especially in order to find out if another substance is present. Sometimes used as a synonym of reactant.
Down
- A combination of two or more substances that mix together without any chemical reaction taking place. An example is air which consists of nitrogen, oxygen, argon, carbon dioxide, etc. They do not have a fixed composition and can usually be easily separated.
- A heterogeneous (or non-homogeneous) mixture formed by the combination of a solid (solute) and a liquid (solvent)
- A substance that makes a chemical reaction happen faster without being changed itself.
- A substance dissolved in another substance, usually the component of a solution present in the lesser amount.
- A substance, especially a liquid, that can dissolve another substance, usually the component of a solution present in the largest amount.
- A measure of the acidity of a solution: it equals -log[H3O+]
13 Clues: A non-homogenous mixture formed by immiscible liquids. • A measure of the acidity of a solution: it equals -log[H3O+] • A species formed by the chemical combination of two or more elements. • A solid substance that has been separated from a liquid in a chemical process • A substance that makes a chemical reaction happen faster without being changed itself. • ...
Chemistry final crossword 2020-06-10
Across
- of two or more substances that are together in the same place but are not chemically combined.
- a definite volume but no shape of its own.
- force of its outward push divided by the area of the walls of the container
- substance made from a chemical reaction.
- very small region located at the center of an tom.
- that has mass and takes up space.
- statement.
- subatomic particle found in the nucleus of every atom except that of simple hydrogen.
- of two or more atoms held together by chemical bonds.
- basic unit of matter.
- fluid that can change volume very easily.
- found in the nucleus of the atom.
- use of the senses to obtain information.
- distinct type of molecular compound.
Down
- egatively charged subatomic particle.
- change from a liquid to a solid.
- a definite shape and a definite volume.
- to the closeness of measurements to the correct or accepted value of the quantity measured.
- ability to do work or cause change.
- of the averate energy of random motion of particles of matter.
- change in state from a solid to a liquid.
- that takes place only on the surface of a liquid.
- measure of the amount of matter
- substances that reacts in a chemical change
- chemical reaction between a fuel and oxygen
25 Clues: statement. • basic unit of matter. • measure of the amount of matter • change from a liquid to a solid. • that has mass and takes up space. • found in the nucleus of the atom. • ability to do work or cause change. • distinct type of molecular compound. • egatively charged subatomic particle. • a definite shape and a definite volume. • substance made from a chemical reaction. • ...
Chemistry Energetics 2022-02-22
Across
- the standard enthalpy change of ___ is the difference between the enthalpy of the products and enthalpy of reactants under standard condition.
- the energy or heat energy content of a substance with units kJ/mol
- the higher the enthalpy, the less ___ the substance
- a hypothetical gas whose molecules occupy negligible space and have no interactions (5,3)
- a positive enthalpy change shows an ___ reaction
- any moving object possesses ___ energy
- the enthalpy of ___ of a substance is the change in enthalpy produced when one mole of fuel is reacted with excess oxygen to produce carbon dioxide and water
- the enthalpy of ___ is the change in enthalpy when one mole of a substance in the standard state is formed from its pure elements under the same conditions.
- a chemical equation written with an associated change in enthalpy value (14,8)
- the act of measuring changes in state variables of a body for the purpose of deriving the heat transfer associated with changes of its state
- the enthalpy of ___ is the enthalpy change associated with the dissolution of a substance in a solvent at constant pressure resulting in infinite dilution
- the minimum energy required for a reaction to occur (10,6)
Down
- the amount of energy required to break one mole of bonds in the gaseous state averaged across a range of compounds containing that bond (7,4,8)
- according to ___'s law, the heat absorbed or released in a chemical process is the same, whether the process takes place in one or several steps
- the energy required to raise the temperature of 1g of a substance by 1K (8,4,8)
- a negative enthalpy change shows an ___ reaction
- a theory that explains rate of reactions at a molecular level (9,6)
- ~101.325kPa, 273K
- the enthalpy of ___ is the change in enthalpy that occurs when one equivalent of an acid and one equivalent of a base undergo a reaction to form water and salt.
- a substance that increases the rate of reaction without being consumed
20 Clues: ~101.325kPa, 273K • any moving object possesses ___ energy • a negative enthalpy change shows an ___ reaction • a positive enthalpy change shows an ___ reaction • the higher the enthalpy, the less ___ the substance • the minimum energy required for a reaction to occur (10,6) • the energy or heat energy content of a substance with units kJ/mol • ...
Chemical Equilibrium 2024-06-07
Across
- ,All reactants and products are in the same phase.
- ,Study of reaction rates and mechanisms.
- ,Reaction absorbs heat; shifts right with added heat.
- ,Equilibrium constant for reactions in terms of partial pressures.
- ,Amount of substance in a given volume.
- ,Minimum energy required to start a reaction.
- ,The calculation of reactants and products in chemical reactions based on the balanced equation.
- ,Does not affect the equilibrium position.
- ,The change in position of equilibrium in response to a change in concentration, temperature, or pressure.
- ,Reaction releases heat; shifts left with added heat.
- ,State where the forward and reverse reactions occur at equal rates.
- ,Used to predict the direction of the reaction's shift to reach equilibrium. (G)
- ,Shifts equilibrium to oppose the change in concentration.
- ,Ratio of product concentrations to reactant concentrations at equilibrium. (K)
- ,"When a system at equilibrium is disturbed, it shifts to counteract the disturbance."
Down
- ,Tool to calculate concentrations at equilibrium (Initial, Change, Equilibrium).
- ,The step-by-step sequence of elementary reactions by which overall chemical change occurs.
- ,Can alter the equilibrium position by favoring endo- or exothermic pathways.
- ,When reactants are favored at equilibrium, it shifts towards the.
- ,The change in the Gibbs free energy as the number of moles of the substance is increased.
- ,Substance that speeds up a reaction without being consumed.
- ,Reactants and products are in different phases.
- ,Pressure exerted by a single gas in a mixture.
- ,Solubility of a gas in liquid is proportional to its partial pressure.
- ,The reaction where reactants turn into products.
- ,Equilibrium constant for reactions in terms of concentration.
- ,When products are favored at equilibrium, it shifts towards the.
- ,The relative concentrations of reactants and products at equilibrium.
- ,Affects equilibrium in gaseous systems.
- ,Speed at which reactants turn into products.
30 Clues: ,Amount of substance in a given volume. • ,Study of reaction rates and mechanisms. • ,Affects equilibrium in gaseous systems. • ,Does not affect the equilibrium position. • ,Minimum energy required to start a reaction. • ,Speed at which reactants turn into products. • ,Pressure exerted by a single gas in a mixture. • ,Reactants and products are in different phases. • ...
Chemical Bonding 2024-01-17
Across
- When a reaction lets off heat
- ________ electrons are on the outer most shell
- what does two hydrogen and one oxygen molecule make
- Bonds that share a Valance electrons in two elements are called __________ bonds
- This contains three basic particles-protons, Neutrons, and electrons.
- A group of atoms held together with chemical bonds.
Down
- Chemical ______ is all the elements in a thing shown
- When a reaction takes in heat
- Chemical ____ are the links between atoms in a substance that determines its identity
- A chemical ______ is change that happens that change the thing at a molecular level.
10 Clues: When a reaction lets off heat • When a reaction takes in heat • ________ electrons are on the outer most shell • what does two hydrogen and one oxygen molecule make • A group of atoms held together with chemical bonds. • Chemical ______ is all the elements in a thing shown • This contains three basic particles-protons, Neutrons, and electrons. • ...
chemical bonds 2022-10-26
Across
- a formula that shows how many atoms are in each element
- a _______ reaction occurs when chemical bonds give off heat
- type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.
- a ______ reaction occurs when chemical bonds absorb heat
- links between atoms in a substance that determine its identity
Down
- changing new substances that are different than the original substance
- the sharing of two or more electrons
- _________ electrons are the electrons in the outermost shell
- group of atoms held together by chemical bonds
- contain three basic particles, protons, neutrons, and electrons
10 Clues: the sharing of two or more electrons • group of atoms held together by chemical bonds • a formula that shows how many atoms are in each element • a ______ reaction occurs when chemical bonds absorb heat • a _______ reaction occurs when chemical bonds give off heat • _________ electrons are the electrons in the outermost shell • ...
Physical and Chemical Change 2017-06-04
Across
- when a gas becomes a liquid.
- the amount of a substance in a set volume.
- a substance that increases the rate of a chemical reaction without undergoing any permanent chemical change.
- reaction procedure that produces new chemicals; same as chemical change.
- substance made up of two or more different types of atoms bonded together, e.g. water.
Down
- the damage caused to metal by its environment.
- pure substance made up of only one type of atom, e.g. oxygen, carbon.
- a molecule that contains only two atoms.
- theory when substances react, their particles must come into contact or collide with each other.
- to change state from a liquid to a gas.
- when two objects remain attracted to each other.
- Smallest particle of matter that cannot be created, destroyed or broken down.
12 Clues: when a gas becomes a liquid. • to change state from a liquid to a gas. • a molecule that contains only two atoms. • the amount of a substance in a set volume. • the damage caused to metal by its environment. • when two objects remain attracted to each other. • pure substance made up of only one type of atom, e.g. oxygen, carbon. • ...
Physical & Chemical Changes 2018-05-29
Across
- Gas becoming a liquid.
- Two atoms attracted to each other.
- Molecules the only contain two atoms.
- molecules with two or more atoms bonded
- Oxygen, carbon and helium are all _______.
- Damage to metal by the environment.
- Made of protons, neutrons and electrons.
- Gas that is dangerous to breathe in.
- Reacting substances must collide or come into contact.
- Two or more atoms bonded together.
- Solid to gas or gas to solid.
- Another word for evaporation.
- Chain molecule of simpler repeating units.
Down
- Solid to a liquid by heat.
- Produces new chemicals.
- Changing a liquid into a gas.
- Written on the right side of the chemical equation.
- A substance that increases the rate of a chemical reaction.
- Molecules with the same atoms bonded.
- A type of catalyst.
- Focusing really hard.
- group of two or more atoms that are bonded
- Horizontal rows of elements.
- Gas form of a solid or liquid,e.g.water vapour.
- All elements on a table.
- One single atom.
- Columns of elements.
- Written on the right side of the chemical equation.
- Arrangement of particles in a regular pattern.
- Easily becomes a gas.
30 Clues: One single atom. • A type of catalyst. • Columns of elements. • Focusing really hard. • Easily becomes a gas. • Gas becoming a liquid. • Produces new chemicals. • All elements on a table. • Solid to a liquid by heat. • Horizontal rows of elements. • Changing a liquid into a gas. • Solid to gas or gas to solid. • Another word for evaporation. • Two atoms attracted to each other. • ...
Properties of Matter Review 2022-02-23
Across
- The liquid substance that is the larger part of a solution (e.g. tea)
- Substances are mixed together
- The atoms are packed tightly together in this state
- This is an example of a mixture
- This is an example of a chemical change that occurs when you leave metal objects outside over a long period of time
- A combination of two or more substances that can be easily separated (e.g. Trail Mix)
- This is an example of a physical change
- This type of reaction lets out heat energy
- These particles have no charge
- Physical changes are usually ________
Down
- The atoms expand to fill all the space in the container
- This type of reaction takes in heat energy
- The process by which water changes to water vapor
- A change in size, shape, or state
- This is an example of a chemical change that releases heat and light energy
- A mixture in which the substances are evenly mixed and not easily separated (e.g. sweet tea)
- The atoms are free to move around in this state
- The process by which ice changes to water
- These particles have a negative charge
- One substance is dissolved in the other
- This is an example of a solution
- The substance that is being dissolved
- These changes are usually irreversible
- These particles have a positive charge
24 Clues: Substances are mixed together • These particles have no charge • This is an example of a mixture • This is an example of a solution • A change in size, shape, or state • The substance that is being dissolved • Physical changes are usually ________ • These particles have a negative charge • These changes are usually irreversible • These particles have a positive charge • ...
Plants 2021-04-01
Across
- Tissue that interacts with environment such as epidermis
- Connects Stigma to Ovary
- sticky surface atop pistil that catches pollen
- A deactivated version of ATP
- Tissue used for food storage
- Chemical that absorbs light energy for photosynthesis
- Female part of flower
- Organism that makes its own food
- This Tissue is used for transport
- Vascular Tissue that moves water
- hairs Increase the surface area for water absorption
- Respiration with Oxygen
- Vascular tissue that moves sugars
- Male part of Flower
- Scientific name for sugars
- Male gamete of plants
- These are required to start the chemical reaction
- These are the what gets produced during the reaction
Down
- Respiration without Oxygen
- Contains the pollen
- Holds the Anther aloft
- Waxy layer on leaf surface
- Chemical Currency produced by Cell Respiration
- C(6)H(12)0(6)
- Contains the eggs
- Opening in Leaf surface for gas exchange
- Processed used by plants to make food
- Tissue that makes new xylem and phloem and causes widening of plant (Secondary growth)
- Used by cells to make energy in ATP
- This Tissue is responsible for primary plant growth
30 Clues: C(6)H(12)0(6) • Contains the eggs • Contains the pollen • Male part of Flower • Female part of flower • Male gamete of plants • Holds the Anther aloft • Respiration with Oxygen • Connects Stigma to Ovary • Respiration without Oxygen • Waxy layer on leaf surface • Scientific name for sugars • A deactivated version of ATP • Tissue used for food storage • Organism that makes its own food • ...
Cells and Classification 2021-08-04
Across
- A structural layer surrounding the plant cell
- The part of the microscope that you look through
- A gas that is necessary to maintain life
- A membrane bound set of organs
- The basic components of every living thing
- The main type of sugar in the blood and is the major source of energy for the body's cells
- A chemical reaction that plants use to make there own food
- A fluid vital for all forms of life
- Vital for the body to function
- Found in plant cells, photosynthesis takes place in this organelle
Down
- The powerhouse of the cell
- Found in all cells and separates the interior of the cell from the outside environment
- The part of the microscope where the specimen goes
- A thick solution that fills each cell and is enclosed by the cell membrane
- A chemical compound composed of carbon and oxygen
- A chemical reaction that happens in all living cells
- A sub-cellular structure that has multiple specific jobs to perform in the cell
- Contains genetic material and other instructions
- Used to look at microscopic things
- Light coming from the sun
20 Clues: Light coming from the sun • The powerhouse of the cell • A membrane bound set of organs • Vital for the body to function • Used to look at microscopic things • A fluid vital for all forms of life • A gas that is necessary to maintain life • The basic components of every living thing • A structural layer surrounding the plant cell • ...
Enzymes, DNA & Protein Synthesis 2023-09-12
Across
- The creation or combination of something
- DNA --> RNA --> Proteins
- Dynamic fit between enzyme and substrate that allows for ideal binding
- Cell organelle where DNA is located; transcription takes place
- Enzyme's specific region to which a substrate binds
- Sugar found in DNA
- Monomer of proteins
- A similarly shaped molecule completes with the substrate by binding to an enzyme's active site
- Shape of DNA
- Molecule an enzyme acts upon
- Speeds up a chemical reaction without being used up
- Carries genetic information from the nucleus to the ribosomes
- Sugar found in RNA
Down
- Cell organelle that is the site of translation
- Process that changes an enzyme's shape, leaving it ineffective
- Released after a chemical reaction with an enzyme
- Composed of a sugar, phosphate and nitrogenous base
- Guanine pairs with this nitrogenous base
- Energy needed for reactions to begin
- Adenine, thymine, guanine, cytosine, uracil
- In RNA will bind with adenine
- Copying of a DNA sequence to form a complementary strand of mRNA
- Process in which mRNA is decoded and a protein produced
- Their experiment created organic molecules from inorganic substances
- Type of protein that speeds up chemical reactions
25 Clues: Shape of DNA • Sugar found in DNA • Sugar found in RNA • Monomer of proteins • DNA --> RNA --> Proteins • Molecule an enzyme acts upon • In RNA will bind with adenine • Energy needed for reactions to begin • The creation or combination of something • Guanine pairs with this nitrogenous base • Adenine, thymine, guanine, cytosine, uracil • ...
Science Crossword 2023-04-21
Across
- Containing terms all of the same degree
- Negatively charged subatomic particle which orbits the nucleus
- The "Universal Solvent"
- Uncharged subatomic particle found in the nucleus of an atom
- Atom of the same element with a different number of neutrons resulting in a different atomic mass
- Seperating mixtures using heat
- Positively charged subatomic particle found in the nucleus
- Diverse in character or content
- Particular kind of matter with uniform properties
- Special type of homogeneous mixture
- A positively charged ion
Down
- First element on the Periodic Table
- Made of 2 or more substances
- Group of 2 or more atoms held by chemical bonds
- Made up or consisting of two or more existing elements
- The smallest unit of matter
- A substance which dissolves the other
- Chemical reaction in which an atom or molecule loses electrons resulting in an increase in its state
- The center of the Atom
- Chemical reaction in which an atom or molecule gains electrons resulting in a decrease in its state
- State of matter which contains of particles very close to each other and vibrate about fixed positions
- The substance being dissolved
22 Clues: The center of the Atom • The "Universal Solvent" • A positively charged ion • The smallest unit of matter • Made of 2 or more substances • The substance being dissolved • Seperating mixtures using heat • Diverse in character or content • First element on the Periodic Table • Special type of homogeneous mixture • A substance which dissolves the other • ...
Science Vocabulary 2023-02-23
Across
- ,The measure of the average kinetic energy of the particles in a material.
- The amount of matter in an object.
- The change in state from a liquid to a gas.
- Occurs when substances react with oxidizing agents, changing it to a new substance.
- Energy Energy due to motion.
- A number placed in front of an element symbol or chemical formula in an equation.
- The mass per unit volume of a substance.
- The amount of force per unit area applied to an object’s surface.
- Occurs when a substance reacts with another substance, changing it to a new substance.
- A starting substance in a chemical reaction.
Down
- The ability of a type of matter to burn easily.
- Matter with a composition that is always the same .
- potential energy The energy released when atoms form bonds.
- The amount of space a substance takes up.
- A substance containing atoms of two or more different elements chemically bonded together.
- The transfer of thermal energy from a region of higher temperature to a region of lower temperature.
- A substance that consists of only one kind of atom.
- A substance produced by a chemical reaction.
- Two or more atoms that are held together by covalent bonds and act as a unit.
- A small particle that is the building block of matter.
20 Clues: Energy Energy due to motion. • The amount of matter in an object. • The mass per unit volume of a substance. • The amount of space a substance takes up. • The change in state from a liquid to a gas. • A substance produced by a chemical reaction. • A starting substance in a chemical reaction. • The ability of a type of matter to burn easily. • ...
Chemistry Crossword 2017-02-08
Across
- - carry a negative charge
- number - the number of protons in the nucleus
- (on the P.T.) - a column of elements in the periodic table of the chemical elements
- - a substance that takes part in and undergoes change during a reaction
- - the opposite of "exo"
- - material that is dull, nonmalleable, fragile
- Bohr- suggested that electrons move from one orbital to another
- electron - the outermost shell of an atom
- - a group of atoms bonded together
- - everything is made up of these
- - substance that is formed as the result of a chemical reaction
- - found all over the periodic table
- - a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity
Down
- - the space outside the nucleus of an atom where an electron is
- - carry a positive charge
- - to be deposited in solid form from a solution
- Mendeleev - a Russian chemist, developed a periodic table of the chemical elements
- (on the P.T.) - horizontal rows in the periodic table, the same number of electron shells
- - a thing that is composed of two or more separate elements
- - the release of heat
- - properties are intermediate between those of metals and solid nonmetals
- Gas - gaseous
- - the center of an atom
- - carry no electrical charge
- of Conservation of Mass - mass in an isolated system, not destroyed by chemical reactions
- - a mark or character
26 Clues: Gas - gaseous • - the release of heat • - a mark or character • - the opposite of "exo" • - the center of an atom • - carry a positive charge • - carry a negative charge • - carry no electrical charge • - everything is made up of these • - a group of atoms bonded together • - found all over the periodic table • electron - the outermost shell of an atom • ...
Introduction to science 2023-05-18
Across
- The sun produces this
- Organism that contains Chlorophyll and uses photosynthesis
- Anything that takes up space, and can be weighed
- Substance that is present at the end of the chemical reactions
- Stored energy
- Sugar in your blood
- Colorless, odorless, and tasteless gas essential to living organisms
- Increasing of a plants volume and/or mass
- The begin of the growth of a seed into a seedling
- A simple molecule consisting of two atoms of hydrogen, and one of oxygen
- Tells you the number of atoms in an element
- Produces light energy
- The embryonic stage of a plant life cycle
- The process of breathing in oxygen and breathing out carbon dioxide
- Atoms bonded together
Down
- Disc shaped structure only found in plants
- The number of molecules or atoms involved in a chemical reaction
- Substance that is present at the start of the chemical reaction
- Made up of protons, neutrons, and electrons
- Parts of plants that absorb water and minerals and transport them to the stems
- Characteristics that enable us to differentiate one material from another
- How plants make food
- Generates ATP
- A chemical element and its compounds in the natural state
- A type of matter with special properties that make it less rigid than a solid, but more rigid than a gas
- Plants need this along with water and oxygen for photosynthesis
26 Clues: Stored energy • Generates ATP • Sugar in your blood • How plants make food • The sun produces this • Produces light energy • Atoms bonded together • Increasing of a plants volume and/or mass • The embryonic stage of a plant life cycle • Disc shaped structure only found in plants • Made up of protons, neutrons, and electrons • Tells you the number of atoms in an element • ...
Weathering and Erosion 2025-04-07
Across
- curve formed when a stream erodes away
- structures built tp provide underoge for small vessels
- acidic rain chemically breaks down materials
- rocks undergo chemical composition due to chemical reaction
- Chemical or mechanical process that breaks down rock on earth surface
- land ridges of sand
- erosion that occurs when a rill channel widens and deepens
- channel that cuts through bedrock
- a ridge of sediments deposited by over flowing water
- become incorrection into a liquid
Down
- triangular deposit that forms where a stream enters a large body of water
- a bank that is nearly vertical
- rivers erode in 4 ways: abrasion, erosion, corrosion, and hydroreaction
- process that just breaks down rocks into smaller pieces
- the change of weather and temperature
- walls of concrete built to protect sand
- the inside of a meander
- deprive beaches down the coast of sand
- windblown particles like sand rub against materials and wear them away
- erosion wind particles picking up sediments away
- water freezesin the rock cracks and crack the rock completely
- chemical reaction of oxygen with other substances
- channel thatcuts through sediments
- a meander that cuts itself off and turns into a lake before drying up
- where plants grow into bedrock forming cracks
- land area drained by a stream system
- removal and transportation of one eroded material to another
27 Clues: land ridges of sand • the inside of a meander • a bank that is nearly vertical • channel that cuts through bedrock • become incorrection into a liquid • channel thatcuts through sediments • land area drained by a stream system • the change of weather and temperature • curve formed when a stream erodes away • deprive beaches down the coast of sand • ...
Chemistry Vocab 2015-04-07
Across
- Yield A quantity that is always calculated and shows the theoretical amount of product that could be produced in an ideal chemical reaction in which there is a complete conversion of reactants(s) to product(s).
- Proportional A relationship between variables in which one variable increases as the other is increased and vice versa.
- Proportional A relationship between variables in which one variable decreases as the other is increases and vice versa.
- Reagent Any reactant that remains after the reactants in a chemical reaction have completely reacted.
- Yield The ratio of the actual yield to the theoretical yield for a chemical reaction expressed as a percentage; shown as actual yield/theoretical yield x 100.
Down
- Yield A measured quantity of the actual amount of product produced during a chemical reaction.
- The portion of chemistry dealing with numerical relationships in chemical reactions
- Reagent Any reactant that is the first to be completely consumed in a chemical reaction, therefore limiting the amount of the product that can be produced.
8 Clues: The portion of chemistry dealing with numerical relationships in chemical reactions • Yield A measured quantity of the actual amount of product produced during a chemical reaction. • Reagent Any reactant that remains after the reactants in a chemical reaction have completely reacted. • ...
Chapter 12 Vocabulary Words 2016-01-28
Across
- Yield: the amount of product that forms when a reaction is carried out in the laboratory
- Ratio: a conversion factor derived from the coefficients of a balanced chemical equation interpreted in terms of moles
- that portion of chemistry dealing with numerical relationships in chemical reactions; the calculation of quantities of substances involved in chemical equations
- Reagent: a reagent present in a quantity that is more than sufficient to react with a limiting reagent; any reactant that remains after the limiting reagent is used up in a chemical reaction
Down
- Reagent: any reactant that is used up first in a chemical reaction; it determines the amount of product that can be formed in the reaction
- Yield: the ratio of the actual yield to the theoretical yield for a chemical reaction expressed as a percentage; a measure of the efficiency of a reaction
- Yield: the amount of product that could form during a reaction calculated from a balanced chemical equation; it represents the maximum amount of product that could be formed from a given amount of reactant
7 Clues: Yield: the amount of product that forms when a reaction is carried out in the laboratory • Ratio: a conversion factor derived from the coefficients of a balanced chemical equation interpreted in terms of moles • Reagent: any reactant that is used up first in a chemical reaction; it determines the amount of product that can be formed in the reaction • ...
Atoms 2025-10-21
Across
- The dense, central core of an atom, containing the protons and neutrons.
- A chart organizing all known elements based on their atomic number and properties.
- A vertical column in the periodic table containing elements with similar chemical properties.
- A process that results in the formation of new substances with different properties.
- A negatively charged particle that orbits the nucleus of an atom in layers or shells.
Down
- A neutral particle with no electric charge, also located in the atom's nucleus.
- A change in the form or appearance of a substance without making a new substance.
- The starting substance(s) in a chemical reaction that are used up or transformed.
- The new substance(s) formed as a result of a chemical reaction.
- A substance formed when two or more different elements are chemically bonded together.
- A pure substance that cannot be broken down into simpler substances by chemical means.
- A horizontal row in the periodic table; properties change gradually across a period.
- A group of two or more atoms held together by strong chemical bonds.
- The smallest unit of an element that still has the properties of that element.
- A positively charged particle found in the nucleus, or center, of an atom.
15 Clues: The new substance(s) formed as a result of a chemical reaction. • A group of two or more atoms held together by strong chemical bonds. • The dense, central core of an atom, containing the protons and neutrons. • A positively charged particle found in the nucleus, or center, of an atom. • ...
balancing chemical equations 2023-12-09
Across
- both sides of the equation don't equal
- uses chemical symbols to show the amount of substance
- anything that has mass and takes up space
- mass can neither be created nor destroyed
Down
- shows that no mass was created or destroyed during the reaction
- shows that a reaction has happened
- substances present before a chemical equation
- found on both sides of a chemical equation
- must equal the total amount on the other side of the equation
- substances produced after the equation
10 Clues: shows that a reaction has happened • both sides of the equation don't equal • substances produced after the equation • anything that has mass and takes up space • mass can neither be created nor destroyed • found on both sides of a chemical equation • substances present before a chemical equation • uses chemical symbols to show the amount of substance • ...
CHEMICAL REACTIONS 2020-06-22
Across
- Substances produced from a chemical reaction are known as
- Two substances that react with one another are called r........
- A molecule with 2 hydrogen atoms and one oxygen atom
- A chemical reaction can be written as a chemical e.......
- Common name for sodium chloride
Down
- Substance made of only one type of atom
- An element can be represented by a s.....
- CO2 is a formula for ....../.......
- A compound is represented by a f......
- Substance made of 2 or more different types of atoms
10 Clues: Common name for sodium chloride • CO2 is a formula for ....../....... • A compound is represented by a f...... • Substance made of only one type of atom • An element can be represented by a s..... • Substance made of 2 or more different types of atoms • A molecule with 2 hydrogen atoms and one oxygen atom • Substances produced from a chemical reaction are known as • ...
Chapter 4 Vocabulary 2017-11-17
Across
- splits glucose into three-carbon molecules
- produces molecules that carry energy to the second part of cellular respiration
- coin-shaped membrane-enclosed compartments
- using chemical energy instead of light energy to make energy-storing carbon-based molecules
- a process that captures energy from sunlight to make sugars that store chemical energy
- low energy molecule that can be converted to ATP
- releases chemical energy from sugars and other carbon-based molecules to make ATP when oxygen is present
- reaction that uses energy from light-dependent reactions to make sugar
- process that does not need oxygen
Down
- membrane-bound organelles where photosynthesis takes place in plants
- a molecules in chloroplasts that absorbs some of the energy in visible light
- absorbs light
- series of proteins in the membrane of the thylakoid
- reaction that captures energy from the sunlight
- enzyme that makes ATP
- causes your muscles to burn while working out
- uses carbon dioxide and energy carried by ATP to make simple sugars
- removes electrons from NADH molecules and recycles NAD+ molecules
- is a molecule that transfers energy from the breakdown of food molecules to cell processes
- process where oxygen is needed to take place
20 Clues: absorbs light • enzyme that makes ATP • process that does not need oxygen • splits glucose into three-carbon molecules • coin-shaped membrane-enclosed compartments • process where oxygen is needed to take place • causes your muscles to burn while working out • reaction that captures energy from the sunlight • low energy molecule that can be converted to ATP • ...
Chapter 2 Crossword - Madi Childs 2018-10-01
Across
- The attraction of water molecules for each other
- Nonpolar molecules
- The immaterial stuff that gets things done
- The measure of the speed at which particles of a substance move
- When water attracts to other substances besides water
- Organic compounds made of carbons, hydrogens, and oxygens
- Stored chemical energy that holds two atoms together
- Changes that don't change a matter's identity
- A substance that provides an alternate route from reactants to products that doesn't require as much energy to jump-start
- A substance that is present before a chemical reaction and takes part in it
Down
- A pure substance made of two or more elements chemically combined
- Large molecules that are super customized to make processes that are necessary to life happen life clockwork
- When matter changes in a way that completely transforms its identity
- The substance formed during a chemical reaction
- A class of organic compounds that serve as the building blocks or proteins
- Tendency of energy to disperse or randomize
- Pure substance made of ONE kind of atom
- A molecule that is a key molecular building block of life
- Simple carbohydrates
- The basic building block of matter
20 Clues: Nonpolar molecules • Simple carbohydrates • The basic building block of matter • Pure substance made of ONE kind of atom • The immaterial stuff that gets things done • Tendency of energy to disperse or randomize • Changes that don't change a matter's identity • The substance formed during a chemical reaction • The attraction of water molecules for each other • ...
Chapter 2 crossword - Renee Hintz 2018-10-01
Across
- a special class of catalyst
- pure substances made of only one kind of atom
- organic compounds made of carbons, hydrogens, and oxygens
- nonpolar molecules
- a change in a substance that does not change the identity of the substance
- stored energy that holds two atoms together
- a class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA
- the attraction between like particles within polar substances
Down
- a measurement of the average speed of the particles within a substance
- the basic building blocks of matter
- a substance that provides an alternate route from reactants to products
- the immaterial stuff that gets things done
- the tendency of energy to disperse
- a change in a substance that results in one or more new substances being formed that have different physical and chemical properties
- molecules that have a central carbon bonded to four groups
- a pure substance made from two or more elements that are chemically combined
- a substance that is present before a chemical reaction and takes part in it
- the attraction of particles in one substance for particles in a different substance
- the substances formed during a chemical reaction
- simple carbohydrates
20 Clues: nonpolar molecules • simple carbohydrates • a special class of catalyst • the tendency of energy to disperse • the basic building blocks of matter • the immaterial stuff that gets things done • stored energy that holds two atoms together • pure substances made of only one kind of atom • the substances formed during a chemical reaction • ...
Chapter 3.2 Matter and its Changes 2021-10-06
Across
- when water gets hot and bubbles
- when ice melts it is.
- a type of gas that you have to have or else you die
- the ability of one material to disolve in another
- change to a change
- something that you light of on the 4th of July
- what type of state is a table.
- when you freeze water it turns to.
- a change in matter in which the substances that make that make up the matter change into substance with diffrent phisical and chiemacal properties
- an artist necessity.
- when when ice turns to water
- what is vapors changing state
- a particular kind of matter with uniform properties.
Down
- what do you need to be up and runing.
- states that that the total mass before a chemical reaction is the same as the total mass after a chemical reaction
- something that you bake with difrent coler
- something that falls of the trees in the fall
- a change in the size shape form or state of matter that does not change the matters idenity
- a color
- when trees burn in a forest fire light and ______ are signs of chemical change
20 Clues: a color • change to a change • an artist necessity. • when ice melts it is. • when when ice turns to water • what is vapors changing state • what type of state is a table. • when water gets hot and bubbles • when you freeze water it turns to. • what do you need to be up and runing. • something that you bake with difrent coler • something that falls of the trees in the fall • ...
Conservation in Reactions 2025-11-17
Across
- Anything that has mass and takes up space.
- The law of conservation of mass is an important _____ in the field of chemistry.
- 2 C3HOH
- The small numbers written after the element symbol, and they tell us how many atoms of each element are present.
- Processes that involve the rearrangement of the atoms in a substance.
- Have three parts: the reactants, the products, and the arrow between them that symbolizes the reaction.
- 6 CO2 + 6 H2O + light energy 🡪 C6H12O6 + 6 O2
- neither created nor destroyed.
- The building blocks of matter, consisting of protons, neutrons, and electrons.
- The same amount of matter exists before and after a physical or chemical change.
- 300 g A + 100 g B 🡪 400 g AB
Down
- You can multiply the coefficient by the sum of the subscripts to determine this.
- The new substances created by the rearranged atoms.
- Identify which elements are present.
- C2H5OH
- Na + Cl 🡪 NaCl
- The initial substances being combined in a chemical equation.
- The numbers written before the formula, and they tell us how many molecules of the compound you have.
- CH3OH
- In chemical reaction atoms are simply _____ into new substances.
20 Clues: CH3OH • C2H5OH • 2 C3HOH • Na + Cl 🡪 NaCl • 300 g A + 100 g B 🡪 400 g AB • neither created nor destroyed. • Identify which elements are present. • Anything that has mass and takes up space. • 6 CO2 + 6 H2O + light energy 🡪 C6H12O6 + 6 O2 • The new substances created by the rearranged atoms. • The initial substances being combined in a chemical equation. • ...
Inv 5 Plants, Photosynthesis, & Cellular Respiration 2020-05-18
Across
- tubes in a vascular plant that transports food
- a group of organs that works together
- tube system in an organism that transports nutrients & water
- convert glucose -> usable energy
- the "water hose" of a plant
Down
- light+water+carbon dioxide = glucose+oxygen
- "ingredients" of a chemical reaction
- water movement through a plant from roots to leaves
- plant cell that controls the opening/closing of stomata
- a tube in the vascular system of a plant
- holes in the leaf underside that where gas exchange occurs
- end result of a chemical reaction
- a structural unit made up of tissues
- groups of cell types that work together
14 Clues: the "water hose" of a plant • convert glucose -> usable energy • end result of a chemical reaction • "ingredients" of a chemical reaction • a structural unit made up of tissues • a group of organs that works together • groups of cell types that work together • a tube in the vascular system of a plant • light+water+carbon dioxide = glucose+oxygen • ...
Chemistry Vocabulary 2022-10-05
Across
- a joining of different parts
- mass the mass of a given molecule
- process of rotting or decaying
- number on the bottom right of a symbol
Down
- a numerical or constant quantity
- left of the arrow in a chemical reaction
- result of a chemical reaction
- a group of atoms bonded together
- process of burning something
- very important unit of measurement
10 Clues: a joining of different parts • process of burning something • result of a chemical reaction • process of rotting or decaying • a numerical or constant quantity • a group of atoms bonded together • mass the mass of a given molecule • very important unit of measurement • number on the bottom right of a symbol • left of the arrow in a chemical reaction
Chemical Puzzle 2023-04-14
Across
- light or heat
- substances you end with after the chemical reaction
- center of the atoms
- ability to burn or ignite
- make up all the matter in the universe
- two or more atoms bonded together
Down
- cloud outer layers of atoms
- ability to react with other elements
- substances you start with before the chemical reaction
- solid made from 2 liquids
10 Clues: light or heat • center of the atoms • solid made from 2 liquids • ability to burn or ignite • cloud outer layers of atoms • two or more atoms bonded together • ability to react with other elements • make up all the matter in the universe • substances you end with after the chemical reaction • substances you start with before the chemical reaction
Dictionary of Science! 2024-10-07
Across
- a grouping of atoms bonded together
- particles used as building blocks
- when 2 or more elements combine
- indicates the amount of an atom in a molecule
- a substance that is unbreakable
- words)- a singular element
Down
- the result of chemical reactions
- the reaction of separating different elements
- a number that represents the amount of molecules
- takes part in chemical reaction, on left side of arrow
- the amount of matter in an item
11 Clues: words)- a singular element • when 2 or more elements combine • a substance that is unbreakable • the amount of matter in an item • the result of chemical reactions • particles used as building blocks • a grouping of atoms bonded together • the reaction of separating different elements • indicates the amount of an atom in a molecule • ...
Dictionary of Science! 2024-10-07
Across
- the reaction of separating different elements
- a singular element
- a number that represents the amount of molecules
- a grouping of atoms bonded together
Down
- a substance that is unbreakable
- takes part in chemical reaction, on left side of arrow
- the result of chemical reactions
- indicates the amount of an atom in a molecule
- particles used as building blocks
- when 2 or more elements combine
- the amount of matter in an item
11 Clues: a singular element • a substance that is unbreakable • when 2 or more elements combine • the amount of matter in an item • the result of chemical reactions • particles used as building blocks • a grouping of atoms bonded together • the reaction of separating different elements • indicates the amount of an atom in a molecule • a number that represents the amount of molecules • ...
Jack Stubleski chapter 13 2020-10-18
Across
- is a chemical that accepts a hydrogen ion, H+.
- is the amount of energy required to pull two bonded atoms apart
- there is net absorption of energy
- when reaction and it’s reverse act at the same rate.
- is a chemical that donates a hydrogen ion, H+.
- is the minimum energy required to overcome the initial breaking of bonds in reactants.
Down
- can behave as an acid or a base.
- there is a net release of energy.
- is how quickly the concentration of reactants decreases and how quickly the concentration of products increases.
- is a substance that lowers the activation energy of a chemical reaction, which allows for the reaction to proceed at a faster
10 Clues: can behave as an acid or a base. • there is a net release of energy. • there is net absorption of energy • is a chemical that accepts a hydrogen ion, H+. • is a chemical that donates a hydrogen ion, H+. • when reaction and it’s reverse act at the same rate. • is the amount of energy required to pull two bonded atoms apart • ...
PHYSICAL AND CHEMICAL CHANGES 2018-09-26
Across
- bubbles that appear during the evolution of gas
- this is a chemical reaction that involves addition of hydrogen or removal of oxygen from a substance
- the process of depositing a layer of zinc on iron
- this is a chemical reaction that involves addition of oxygen or removal of hydrogen from a substance
- original substances participating in a chemical reaction
Down
- the rusting of iron occurs due to water and ________
- the process by which we obtain crystals of common substances from a solution in water
- a solid in which atoms are arranged in a regular pattern
- a solid can be separated from a solution of the solid by __________ and crystallization
- new substances that are formed
10 Clues: new substances that are formed • bubbles that appear during the evolution of gas • the process of depositing a layer of zinc on iron • the rusting of iron occurs due to water and ________ • a solid in which atoms are arranged in a regular pattern • original substances participating in a chemical reaction • ...
Jay Hernandez 2022-03-08
Across
- is the amount of product that was actually produced (found in an experiment)
- the maximum product that can be produced based on the limiting reactant
- The mass of one mole of a substance
- the relationship between the relative quantities of substances taking part in a reaction or forming a compound, typically a ratio of whole integers
- The substance that will be used up first in a chemical reaction
- is a ratio between the number of moles of any 2 substances in a chemical equation
Down
- 6.022*10^23
- Represents the number of moles in that substance when balancing a chemical reaction
- Lowest whole number ratio of elements within a compound
- Multiple of an empirical formula
10 Clues: 6.022*10^23 • Multiple of an empirical formula • The mass of one mole of a substance • Lowest whole number ratio of elements within a compound • The substance that will be used up first in a chemical reaction • the maximum product that can be produced based on the limiting reactant • is the amount of product that was actually produced (found in an experiment) • ...
Chemistry Fall Review 2013-12-09
Across
- Found on the periodic table and cannot be separated out to a more pure form.
- A group of elements with the same number of valence electrons, and similar characterics including reactivity.
- Family with 3 valence electrons.
- Type of physical property that does not depend on the amount of mass of a substance.
- Discovered the modern periodic table.
- An amount equal to 6.02 x 10^23.
- Type of mixture that cannot be easily separated such as Kool-aid, generally a solution.
- Family with an oxidation number of -3.
- Type of physical property that depends on the amount of mass of a substance.
- Good conductor of heat and electricity, malleable, shiny.
- Your current science class.
- Mass is neither created nor destroyed, it just changes forms. Basis for the chemical reaction--what goes in must come out (5 words).
- Has an atomic mass of 12.011.
- Many data points that are closely grouped together.
- Has the atomic symbol Na.
- Compressible, atoms move quickly and have a large amount of space between them--no fixed shape or volume.
- A physical property defined at mass/volume and has units of g/ml org/cm^2.
- Used gold foil experiment to determine that most of an atom's mass is in the nucleus.
- Establishes identity of the element.
- Conroe high school mascot.
- Has an atomic number of 17.
- An element that has lost or gained electrons.
Down
- Negative particle of an atom.
- A negative ion.
- Variations of an element with different numbers of neutrons.
- Vertical columns of elements on the periodic table.
- Most reactive family of elements (2 words).
- Type of mixture that can be easily separated such as chunky peanut butter, or stew.
- The densely packed middle of an atom.
- Dull, brittle, most are gases, poor conductors of heat and electricity.
- Change that results in new compounds.
- Hypothesized that electrons traveled in discrete orbits around the nucleus.
- The mass of one mole of an element and is equal to its atomic mass in grams (2 words).
- The combination of 2 or more substances that does not result in a chemical change.
- The result of a chemical reaction.
- The number of protons and neutrons in the nucleus (2 words).
- 2 or more molecules or elements chemically bound to each other and can only be changed by a chemical reaction.
- The number of protons in an element (2 words).
- Chemical family that does not react (2 words).
- Attaining the intended target.
- Has the atomic symbol Xe.
- Property that can be observed by the 5 senses.
- Published the first periodic table in which the elements are arranged by atomic.
- Not compressible, atoms are closely packed and only move slightly--has a fixed shape and volume.
- What goes into a chemical reaction.
- A positive ion.
- When 2 or more elements come together and bind chemically.
- Horizontal rows of elements on the periodic table.
- State in which we live.
- Slightly compressible, atoms slide past one another--no fixed shape, but does have a fixed volume.
50 Clues: A negative ion. • A positive ion. • State in which we live. • Has the atomic symbol Xe. • Has the atomic symbol Na. • Conroe high school mascot. • Your current science class. • Has an atomic number of 17. • Negative particle of an atom. • Has an atomic mass of 12.011. • Attaining the intended target. • Family with 3 valence electrons. • An amount equal to 6.02 x 10^23. • ...
Stoichiometry 2022-02-16
Across
- a branch of chemistry that deals with the amount of matter in a chemical equation
- the substances produced at the end of a chemical reaction
- when a chemical equation has the same number of each element on both sides
- the total mass of a substance
Down
- a ratio comparing the amount of moles in any two substances in a chemical reaction.
- a metric unit of measurement that measures volume
- two or more substances that combine or react
- the smallest particle of a substance
- a statement in which two expressions are equal
- unit for measuring large quantities
10 Clues: the total mass of a substance • unit for measuring large quantities • the smallest particle of a substance • two or more substances that combine or react • a statement in which two expressions are equal • a metric unit of measurement that measures volume • the substances produced at the end of a chemical reaction • ...
Science Vocabulary 2019-09-12
Across
- Acid an organic acid that contains a carboxyl group and an amino group.
- an intermediate in carbohydrate and lipid metabolism
- a disaccharide made of two monosaccharides.
- the building blocks of DNA and RNA.
- a chemical reaction that releases energy through light or heat.
- any of a class of organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents.
- Acids produced by the breakdown of fats through a process called hydrolysis.
- the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
- having carbon–carbon double or triple bonds and therefore not containing the greatest possible number of hydrogen atoms for the number of carbons.
- any of a class of sugars whose molecules contain two monosaccharide residues.
- the substance on which an enzyme acts.
Down
- requires or absorbs energy from its surroundings.
- polymers of amino acids.
- are molecular compounds made from carbon, hydrogen and oxygen.
- the building blocks of disaccharides and polysaccharides.
- a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
- Acid DNA or RNA.
- a carbohydrate whose molecules consist of a number of sugar molecules bonded together.
- containing the greatest possible number of hydrogen atoms, and so having no carbon–carbon double or triple bonds.
- a substance that is formed as the result of a chemical reaction.
20 Clues: Acid DNA or RNA. • polymers of amino acids. • the building blocks of DNA and RNA. • the substance on which an enzyme acts. • a disaccharide made of two monosaccharides. • requires or absorbs energy from its surroundings. • an intermediate in carbohydrate and lipid metabolism • the building blocks of disaccharides and polysaccharides. • ...
chapter 4,5,6 2014-02-26
Across
- the rapid reaction of a compound or element with oxygen to form an oxide
- a stainless steel device
- the number of protons and electrons in a neural atom is equal
- the measure of how much area of an object is exposed
- octet/the arrangement of eight electrons in the outernost shell
- changes changes in the ways the atoms and molecules in a pure substance are arranged and interconnected
- reaction usually involves two ionic solutions that react to produce two other ionic compounds
- a chemical compound that includes atleast one oxygen atom or ion together with one or more other elements
- they can form ions in more than one way,
- a pure substance that is composed of of two or more atoms
Down
- a reactive element and a compound react to produce another element and another compound
- top to bottom
- a liquid that can dissolve other substances
- combination reaction,two or more reactants
- the term given to the electric charge on the nucleus
- charged particles created when atoms lose or gain elcetrons
- is the breaking down of a compound into smaller compounds
- an insoluble solid that forms from a solution
- a group of atoms in which the atoms are bound together by sharing one or more pairs of of electrons
- a group
- a class of ionic compounds that can be formed during they reaction of a acid and a base
- smallest particle of any element that retains the properties of the element
22 Clues: a group • top to bottom • a stainless steel device • combination reaction,two or more reactants • a liquid that can dissolve other substances • an insoluble solid that forms from a solution • they can form ions in more than one way, • the measure of how much area of an object is exposed • the term given to the electric charge on the nucleus • ...
crossword assignment 2014-11-14
Across
- does lactate fermentation cause in your muscles
- diffusion/What system uses a facility to move molecules across membranes with out energy
- is the chemical formula for glucose
- anaerobic process causes cramps
- reaction/What are the reactions that don't require light
- fermentation/ What anaerobic process creates booze
- is the first step in creating ATP energy from glucose
- reaction/Chemical reactions that require light
- energy/ What energy is used to help make glucose
- What is the thin layer on top of the upper epidermis called
- What is the space between the guard cell
- Where does photosynthesis occur
- is the liquid inside the mitochondria
Down
- When lactate fermentation occur there is a lack of
- molecule starts ethanol fermentation and lactate fermentation
- what enzyme combines with pyruvate to create acetyl-coenzyme
- high energy molecule is produced when lactate is changed to pyruvate
- is the first photosystem called in the light dependant reaction
- transport chain/ What do electrons move down to create H2O
- What is the high energy molecule that you split the end off to make energy
- centre/What is the specialized chlorophyll A molecule in a photosystem
- carotene/ What pigment causes leaves to turn red yellow and orange in fall
- What is the funny looking mesophyll between the upper palisade mesophyll and the lower epidermis
- transport/What system uses energy to transport molecules across membranes
24 Clues: anaerobic process causes cramps • Where does photosynthesis occur • is the chemical formula for glucose • is the liquid inside the mitochondria • What is the space between the guard cell • reaction/Chemical reactions that require light • does lactate fermentation cause in your muscles • energy/ What energy is used to help make glucose • ...
crossword assignment 2014-11-14
Across
- what does lactate fermentation cause in your muscles
- What is the funny looking mesophyll between the upper palisade mesophyll and the lower epidermis
- what high energy molecule is produced when lactate is changed to pyruvate
- transport chain/ What do electrons move down to create H2O
- What is the thin layer on top of the upper epidermis called
- what enzyme combines with pyruvate to create acetyl-coenzyme
- reaction/Chemical reactions that require light
- transport/What system uses energy to transport molecules across membranes
- energy/ What energy is used to help make glucose
- lactate fermentation occur there is a lack of
- fermentation/ What anaerobic process creates booze
- Where does photosynthesis occur
- reaction/What are the reactions that don't require light
- what is the liquid inside the mitochondria
Down
- What is the high energy molecule that you split the end off to make energy
- centre/What is the specialized chlorophyll A molecule in a photosystem
- what molecule starts ethanol fermentation and lactate fermentation
- what is the first step in creating ATP energy from glucose
- what anaerobic process causes cramps
- carotene What pigment causes leaves to turn red yellow and orange in fall
- whatis the first photosystem called in the light dependant reaction
- diffusion/What system uses a facility to move molecules across membranes with out energy
- What is the space between the guard cell
- whatis the chemical formula for glucose
24 Clues: Where does photosynthesis occur • whatis the chemical formula for glucose • What is the space between the guard cell • what anaerobic process causes cramps • lactate fermentation occur there is a lack of • reaction/Chemical reactions that require light • energy/ What energy is used to help make glucose • what is the liquid inside the mitochondria • ...
BIOLOGY REVANO ADAMS 2025-04-24
Across
- A type of inhibitor that binds to a site other than the active site.
- The building blocks of proteins, which most enzymes are made of.
- Enzymes are biological __________.
- The study of enzymes.
- The state of an enzyme after it has catalyzed a reaction, ready to bind another substrate.
- A non-protein helper molecule that assists enzyme function.
- The general term for a substance that speeds up a chemical reaction.
- The energy required to start a chemical reaction. Enzymes lower this.
- An enzyme that breaks down starch.
- The overall process that enzymes catalyze.
- The environment in which an enzyme functions best (e.g., acidic or basic).
- The breaking down of large molecules into smaller ones.
- The molecule that an enzyme acts upon.
Down
- A condition, like high temperature, that can cause an enzyme to lose its shape and function.
- Enzymes are highly ______ for their specific substrates.
- The model describing how an enzyme and substrate fit together like a lock and key.
- A factor, besides substrate concentration, that can affect enzyme activity.
- The process where an enzyme's active site changes shape to fit the substrate.
- The location on an enzyme where the substrate binds.
- The suffix commonly used to name enzymes.
- Many enzymes require these inorganic ions for optimal activity.
- The synthesis of larger molecules from smaller ones.
- A type of inhibitor that binds to the active site, blocking the substrate.
23 Clues: The study of enzymes. • Enzymes are biological __________. • An enzyme that breaks down starch. • The molecule that an enzyme acts upon. • The suffix commonly used to name enzymes. • The overall process that enzymes catalyze. • The location on an enzyme where the substrate binds. • The synthesis of larger molecules from smaller ones. • ...
Cellular Respiration and the Interdependence of Organ Systems 2017-10-30
Across
- Anything composed of atoms and, consequently, has mass and takes up space.
- Organ system responsible for transporting digested food molecules to cells around the body.
- System of chemical reactions occurring within cells in which the bonds in food and oxygen molecules are broken, new bonds are formed within products; energy from this process is used in condensation reactions to form ATP from ADP and Pi.
- Group of fatty or waxy organic molecules found in foods that are made mostly from carbon and hydrogen atom; they include oils, cholesterol and triglycerides.
- Term that is used to describe any substance containing carbon-based compounds, especially those produced by or derived from living organisms.
- The ability to do work; required to break chemical bonds and released when new chemical bonds form.
- Organelles where cellular respiration occurs.
- Neutral (uncharged) group of two or more atoms held together by chemical bonds.
- Group of organic molecules found in foods that are composed of amino acids.
Down
- Chemical reaction that involves breaking chemical bonds through the addition of water; occurs during chemical digestion and when ATP is split into ADP and Pi.
- An attraction between atoms in a molecule; energy is required to break this attraction and energy is released when this attraction forms; (eg.) covalent.
- Molecule that stores chemical energy and is used by cells to do work.
- Structures within the lungs that are surrounded by small blood vessels (capillaries) and involved in the exchange of oxygen and carbon dioxide gases.
- Structures within the small intestine that absorb digested food molecules and transport those molecules into the bloodstream.
- Group of organic molecules found in food that are composed of carbon, hydrogen and oxygen and include sugars, starch, and cellulose.
- Matter or energy that enters a process, such as a chemical reaction; a reactant.
- A large molecule composed of many small and simple repeating units.
- Type of energy released during cellular respiration; used to maintain internal body temperature.
- The process of breaking down food into smaller components that can be absorbed into the bloodstream.
- Organic substance containing carbohydrates, proteins, and/or fats that serves as both fuel and building material for an organism.
20 Clues: Organelles where cellular respiration occurs. • A large molecule composed of many small and simple repeating units. • Molecule that stores chemical energy and is used by cells to do work. • Anything composed of atoms and, consequently, has mass and takes up space. • Group of organic molecules found in foods that are composed of amino acids. • ...
Luca's Crossword Puzzle 2022-11-29
Across
- the positively charged particles which are
- that have been chemically joined.
- The smallest particle of a substance that all of the physical and chemical properties that substance
- the unit of amount of substance
- a mathematical relationship or rule
- a substance made from two or more different
- a substance that is present at the end of a chemical reaction
- in relative amounts that can be varied
- the amount of a substance measured in
- (H2O)
- a subatomic particle found in the nucleus of every atom except that of simple
Down
- a particle of matter that uniquely defines
- up to what is called the limit of solubility
- a strong electrostatic attraction between
- a negatively charged subatomic particle that can be either bound to an atom or free(not bound).
- their reactions.
- a substance that changes when it is combined with another substance in a chemical reaction
- in the nucleus of an atom.
- in symbols.
- involves the loss of electrons
- a homogenous mixture of two or more
- the amount of matter
- charged ions
- involves the gain of electrons
- a scientist who works with chemicals or
25 Clues: (H2O) • in symbols. • charged ions • their reactions. • the amount of matter • in the nucleus of an atom. • involves the loss of electrons • involves the gain of electrons • the unit of amount of substance • that have been chemically joined. • a mathematical relationship or rule • a homogenous mixture of two or more • the amount of a substance measured in • ...
semester 1 physical science extra credit 2023-12-11
Across
- a compound is made from simpler materials
- a change that can be reversed
- a degree of compactness of a substance
- a process of rotting
- the kind of elements on the right side of the periodic table
- same number of protons but different number neutrons
- a subatomic with a negative charge
- a change that cannot be reversed
- a reaction that happens when heat is absorbed
- a subatomic with a neutral charge
Down
- a compound containing hydrogen and oxygen
- substances that take part in chemical reaction
- a release of heat
- a substance that is at the end of a chemical reation
- a place where all the elements are orginized
- the positive and negative ions in two compounds switch places
- a usually formal statement of the equality or equavalence of a mathematical or logical expressions
- an atom with a net charge
- an element that starts out by itself replaces another element in a compound
- a subatomic with a positive charge
- metal and chemical bond
- both elements are chemicals bond
- how a substance reacts chemically with other substances
- the kind of elements on the left side of the periodic table
24 Clues: a release of heat • a process of rotting • metal and chemical bond • an atom with a net charge • a change that can be reversed • both elements are chemicals bond • a change that cannot be reversed • a subatomic with a neutral charge • a subatomic with a positive charge • a subatomic with a negative charge • a degree of compactness of a substance • ...
Chemistry Basics 2024-11-22
Across
- change that doesn't create any new chemicals
- the atom with electron configuration 2,6
- has no charge
- this atom has 7 protons
- change that creates new chemicals
- the materials produced by a chemical reaction
- the rule that determines how many electrons fill the outermost shell of an atom
- negative part of the atom
- this atom has an atomic mass of 7
- atoms found on the right of the periodic table
- metals ______ electrons
- centre of the atom
Down
- the number that tells how many protons and neutrons are in the nucleus
- name for electrons found in the outermost shell
- an atom that has an overall charge
- has atomic number 79
- nonmetals _______ electrons
- a vertical column on the periodic table
- name for a negative ion
- makes up all matter
- the number that tells how many protons an atom has
- positive subatomic particle
- a row on the periodic table
- name for a positive ion
- number of electrons that fit in the first shell
- the materials used up in a chemical reaction
- number of electrons that fit in the second electron shell
- types of atoms found on the left of the periodic table
28 Clues: has no charge • centre of the atom • makes up all matter • has atomic number 79 • name for a negative ion • this atom has 7 protons • name for a positive ion • metals ______ electrons • negative part of the atom • nonmetals _______ electrons • positive subatomic particle • a row on the periodic table • change that creates new chemicals • this atom has an atomic mass of 7 • ...
Redox Reaction 2021-04-20
Across
- Chemical process that involves gaining of electron.
- Redox reaction is defined as the chemical reaction that involves reduction and oxidation ......
- ........ ion is the strongest reductant.
- Electroplating can help to avoid ......
- The element/compound that undergo reduction also act as an ....... agent.
Down
- Substance that conduct electricity.
- The process of applying metal with metal that are more electropositive in the electrochemical series.
- ....... ion is the strongest oxidant.
- The element/compound that undergo oxidation also act as a ...... agent.
- Chemical process that involves gaining of oxygen.
10 Clues: Substance that conduct electricity. • ....... ion is the strongest oxidant. • Electroplating can help to avoid ...... • ........ ion is the strongest reductant. • Chemical process that involves gaining of oxygen. • Chemical process that involves gaining of electron. • The element/compound that undergo oxidation also act as a ...... agent. • ...
savanna 2021-12-02
Across
- is a chemical that accepts a hydrogen ion, H
- is a chemical that donates a hydrogen ion, H
- displacement AB+CD=AD+CB
- A+B=AB
- AB=A+B
Down
- displacement AB+C=AC+B
- a substance that lowers the activation energy of a chemical reaction, which allows for the reacting to go faster
- AB+oxygen=oxides of A and B
- when reaction and its reverse act at the same rate
- is a measure of the concentration of hydronium ions
10 Clues: A+B=AB • AB=A+B • displacement AB+C=AC+B • displacement AB+CD=AD+CB • AB+oxygen=oxides of A and B • is a chemical that accepts a hydrogen ion, H • is a chemical that donates a hydrogen ion, H • when reaction and its reverse act at the same rate • is a measure of the concentration of hydronium ions • ...
Photosynthesis & Respiration 2022-09-02
Across
- A chemical reaction that transfers energy from glucose to a chemical store called ATP (11 letters)
- An enzyme that breaks down proteins (8 letters)
- A molecule made up of fatty acids and fatty acids (5 letters)
- The part of a cell where respiration takes place (12 letters)
- A gas that is produced from aerobic respiration (2 words, 6 letters and 7 letters)
- An enzyme that breaks down lipids (6 letters)
- The enzyme that breaks down carbohydrates (12 letters)
Down
- A chemical produced from anaerobic respiration (2 words, 6 letters and 4 letters)
- A large molecule that is made of smaller sugar molecules (12 letters)
- The part of a plant cell where photosynthesis takes place (11 letters)
- A chemical reaction in plants that uses sunlight to make glucose (14 letters)
- A type of carbohydrate found in foods like potatoes (6 letters)
- A large molecule made up of amino acids (7 letters)
13 Clues: An enzyme that breaks down lipids (6 letters) • An enzyme that breaks down proteins (8 letters) • A large molecule made up of amino acids (7 letters) • The enzyme that breaks down carbohydrates (12 letters) • A molecule made up of fatty acids and fatty acids (5 letters) • The part of a cell where respiration takes place (12 letters) • ...
Photosynthesis & Respiration 2022-09-02
Across
- A chemical reaction that transfers energy from glucose to a chemical store called ATP (11 letters)
- An enzyme that breaks down proteins (8 letters)
- A molecule made up of fatty acids and fatty acids (5 letters)
- The part of a cell where respiration takes place (12 letters)
- A gas that is produced from aerobic respiration (2 words, 6 letters and 7 letters)
- An enzyme that breaks down lipids (6 letters)
- The enzyme that breaks down carbohydrates (12 letters)
Down
- A chemical produced from anaerobic respiration (2 words, 6 letters and 4 letters)
- A large molecule that is made of smaller sugar molecules (12 letters)
- The part of a plant cell where photosynthesis takes place (11 letters)
- A chemical reaction in plants that uses sunlight to make glucose (14 letters)
- A type of carbohydrate found in foods like potatoes (6 letters)
- A large molecule made up of amino acids (7 letters)
13 Clues: An enzyme that breaks down lipids (6 letters) • An enzyme that breaks down proteins (8 letters) • A large molecule made up of amino acids (7 letters) • The enzyme that breaks down carbohydrates (12 letters) • A molecule made up of fatty acids and fatty acids (5 letters) • The part of a cell where respiration takes place (12 letters) • ...
Peridiocity 2023-01-24
Across
- a column in the periodic table of the chemical elements
- the number of atoms, ions, or molecules that a central atom or ion holds as its nearest neighbor in a complex or coordinate compound
- The horizontal rows of the periodic table
- any of the series of 15 consecutive chemical elements in the periodic table from lanthanum to lutetium.
- any of the six chemical elements that make up Group 1 of the periodic table
- any of a series of 15 consecutive chemical elements in the periodic table from actinium to lawrencium
- chemical catalysts whose physical phase is different from the phase of the reactants/products that take part in the catalyzed chemical reaction.
- any of the seven chemical elements that make up Group 18 of the periodic table.
Down
- a process where the reactants involved in the reaction and the catalyst are in the same phase
- the attraction exerted by the nucleus on electrons due to the positive charge of the protons and negative charge of the electron.
- the blocking of valence shell electron attraction by the nucleus, due to the presence of inner-shell electrons.
- any of various metallic elements that have valence electrons in two shells instead of only one
- a table of the chemical elements arranged in order of atomic number in rows and columns.
- any of the six nonmetallic elements that constitute Group 17 of the periodic table
- an ion or molecule attached to a metal atom by coordinate bonding
15 Clues: The horizontal rows of the periodic table • a column in the periodic table of the chemical elements • an ion or molecule attached to a metal atom by coordinate bonding • any of the six chemical elements that make up Group 1 of the periodic table • any of the seven chemical elements that make up Group 18 of the periodic table. • ...
Physical Science 2024-03-21
Across
- Means "cannot be divided"
- Found on the right side of a chemical equation
- A row on the Periodic Table
- Studies the parts of the atom
- The force that hold atoms together
- A measure of gravity pulling on an object
- Multiplies a compound
- Slows down a chemical reaction
- The force of a very large object
- Form from the ceiling of a cave
- Most elements on the Periodic Table
- The energy of position
- Group 18 on the Periodic Table
- A solid with a repeating 3D pattern
- Stated the Law of Conservation of Mass
- Means "the same throughout"
- Bonds by sharing electrons
- A force that resists movement between objects
- Releasing heat
- Two or more forces that are equal
- Has a pH of 7
- Means produces or yields
- Have a pH of above 7
- An example of a chemical reaction
- equation A description of a chemical reaction
- number Indicates the number of protons in an atom
- Matter without a definite shape
- Total kinetic and potential energy
- A unit of measure for weight
- The amount of matter in an object
- Distance divided by time
- The amount of mass in a given volume
- Absorbing heat
- The energy of motion
- Have a pH below 7
- Changing from a gas to a liquid
- Enables heavy objects to be moved easily
- Anything that has mass and takes up space
- A liquids resistance to flow
- Allows small objects to sit on water
- Speeds up a chemical reaction
Down
- The length of the route to be traveled
- More than one atom bonded together
- The change from a solid to a gas
- Change from a liquid to a gas
- Matter made up of one type of element
- The arrangements of all elements
- The amount of space an object takes up
- A change in size, shape, color, mass
- Up, down, top, bottom, strange, charmed
- Group 1 on the Periodic Table
- The average kinetic energy of particles
- Can be bent into shape
- An objects mass times its velocity
- All the forces acting on an object
- A column on the Periodic Table
- The change in speed over a period of time
- Two or more substances that can be separated
- Discovered energy levels in atoms
- Traveling at the same speed
- Positively charged particle in the nucleus
- Bonds positive and negative particles
- Developed a chemical shorthand for elements
- Shows the elements in a compound
- Individual parts can be seen
- The ability to do work
- A rough measure of an object
- A push or a pull
- Indicates the number of atoms of an element
- A way to describe something using numbers
- The tendency of something to resist change
- Found on the left side of a chemical equation
- Group 17 on the Periodic Table
- Rubber, plastic, or glass
- Speed plus direction
75 Clues: Has a pH of 7 • Releasing heat • Absorbing heat • A push or a pull • Have a pH below 7 • Have a pH of above 7 • The energy of motion • Speed plus direction • Multiplies a compound • Can be bent into shape • The energy of position • The ability to do work • Means produces or yields • Distance divided by time • Means "cannot be divided" • Rubber, plastic, or glass • Bonds by sharing electrons • ...
Dylan Couto 2022-03-08
Across
- max amount of product that can be produced based on the limiting reactant
- a source of nuclear energy
- the lowest whole number ratio
- add coefficients to the front of certain substances in a chemical reaction
- mass of one mole of a substance
Down
- the actual divided by the theoretical
- study of ratios within chemical reactions
- multiple of an empirical formula
- the substance that will be used up first in chemical reaction
- allows you to convert from one substance to another
10 Clues: a source of nuclear energy • the lowest whole number ratio • mass of one mole of a substance • multiple of an empirical formula • the actual divided by the theoretical • study of ratios within chemical reactions • allows you to convert from one substance to another • the substance that will be used up first in chemical reaction • ...
Science Vocab 2023-10-19
9 Clues: Allowed • Not allowed • Supports an answer. • How many atoms in a molecule • A cluster of two or more atoms. • The input of a chemical reaction. • The output of a chemical reaction. • Supports the support to an answer. • An answer that needs evidence to support it.
Enzymes and Digestion 2017-02-10
Across
- The product of starch digestion.
- The enzyme that digests lipid.
- Collisions occur at a faster rate when this is high.
- What enzyme and substrate must do before a chemical reaction takes place
- The temperature at which enzymes work fastest.
- A specific protein that controls the rate of chemical reactions in living organisms
Down
- The general name for the molecule that binds to the active site of an enzyme.
- When this is digested amino acids are produced.
- The enzyme that digests starch.
- The chemical that is made in a reaction.
- When this is digested glycerol and three fatty acids are produced.
11 Clues: The enzyme that digests lipid. • The enzyme that digests starch. • The product of starch digestion. • The chemical that is made in a reaction. • The temperature at which enzymes work fastest. • When this is digested amino acids are produced. • Collisions occur at a faster rate when this is high. • When this is digested glycerol and three fatty acids are produced. • ...
Year 9 Physics 2025-10-28
Across
- The bending of light as it passes between materials
- The height of a wave from its rest position
- A negatively charged particle found in shells around the nucleus
- Process where atoms gain or lose electrons to form ions
- Reaction that absorbs energy from its surroundings
- A positively charged particle found in the nucleus
- A substance made when two or more elements are chemically joined
- The amount of matter in an object
- When light bounces off a surface
- The flow of electric charge in a circuit
- Substance present at the start of a chemical reaction
- A substance that produces hydrogen ions (H⁺) in solution
Down
- The rate at which an object changes its velocity
- A substance that neutralises an acid to form salt and water
- A neutral particle found in the nucleus
- The force of gravity acting on an object's mass
- A pure substance made up of only one type of atom
- A charged atom that has gained or lost electrons
- Substance formed as a result of a chemical reaction
- The opposition to the flow of electric current
- The smallest particle of an element that still has its properties
- Reaction that releases energy to its surroundings
- The potential difference across two points in a circuit
- The number of waves that pass a point each second
- A vibration that travels through air or another medium
- Two or more atoms bonded together
26 Clues: When light bounces off a surface • The amount of matter in an object • Two or more atoms bonded together • A neutral particle found in the nucleus • The flow of electric charge in a circuit • The height of a wave from its rest position • The opposition to the flow of electric current • The force of gravity acting on an object's mass • ...
Chemical reactions 2024-05-15
Across
- How well something can be shaped into something else without breaking
- The state in which molecules are tightly banded together
- The ability to dissolve in a liquid
- How an item reacts to acid
- When a reaction occurs between two substances and changes the matter
- how metals react to oxygen over time
- The measure of a substances ability to stretch
- An objects resistance to being damaged
- how heat and fire affects an object
- How a substance reacts to another substance
- How much matter in an object
- How an item effects the structure of an organism
- The mass in a certain amount of volume
Down
- Anything that has substance
- How a substance feels to the touch
- How an objects color reacts when put with another object
- How often an object breaks or shatters
- The state in which molecules can slide past and around each other
- Amount of space taken by an object
- How an item reacts to water
- When a reaction occurs to a substance and the matter does not change
- How well metal can be turned into wire
- How much tension an object can hold
- The state in which molecules are far and disjointed from each other
- The thickness of a liquid
- The smell of a substance
26 Clues: The smell of a substance • The thickness of a liquid • How an item reacts to acid • Anything that has substance • How an item reacts to water • How much matter in an object • How a substance feels to the touch • Amount of space taken by an object • How much tension an object can hold • The ability to dissolve in a liquid • how heat and fire affects an object • ...
AP Bio Unit 3 vocab 2024-04-04
Across
- main energy source that cells use for most of their work
- The third step of aerobic (oxygen required) cellular respiration; electrons from acetyl-CoA are transferred to NADH and FADH2, which will carry electrons to the electron transport chain.
- Respiration that does not require oxygen; occurs in the cytosol. Does not produce as much ATP per glucose molecule.
- A high-energy electron carrier produced by glycolysis and the Krebs cycle. It carries energy to the electron transport chain, where it is stored in ATP.
- The process by which cells break down simple food molecules to release the energy they contain.
- A molecule that resembles the normal substrate and competes with the substrate for the active site; decreases enzyme activity.
- a region on an enzyme that binds to the substrate during a reaction.
- A series of membrane proteins that uses the energy from high energy electrons to produce ATP.
- A molecule that reduces the activity of an enzyme by binding to a location remote from the active site, changing the enzymes shape so that it can no longer catalyze a chemical reaction.
- Substance that speeds up the rate of a chemical reaction by lowering the activation energy required
- A change in the shape of a protein (such as an enzyme) that can be caused by changes in temperature or pH (among other things); results in the loss of secondary, tertiary, and quaternary protein structure.
Down
- The folds of the inner membrane of mitochondria; greatly increases the surface area.
- A highly folded, disk-shaped membrane compartment inside chloroplasts; the site of the light-dependent reactions.
- The first step of cellular respiration; breaks down glucose to produce pyruvate, ATP, NADH, and CO2
- Building blocks of protein
- Metabolic pathways that build larger molecules; ex: photosynthesis
- Step of the Calvin Cycle of photosynthesis where CO2 from the air is incorporated into organic molecules.
- A chemical reaction that requires the input of energy in order to proceed.
- Concentration of hydrogen ions in a solution
- Metabolic pathways that break down molecules; ex: cellular respiration
- A difference in proton (H+) concentration on either side of a membrane; produced by proton pumps in the electron transport chain
- A chemical reaction that releases energy because the products are more stable (lower energy) than the products
- Process by which autotrophs produce glucose using energy from the sun and CO2
23 Clues: Building blocks of protein • Concentration of hydrogen ions in a solution • main energy source that cells use for most of their work • Metabolic pathways that build larger molecules; ex: photosynthesis • a region on an enzyme that binds to the substrate during a reaction. • Metabolic pathways that break down molecules; ex: cellular respiration • ...
Stoichiometry Vocab 2017-08-03
Across
- gases in the Earth's atmosphere that allow sunlight to enter the atmosphere but prevent heat from escaping
- in a chemical reaction, the percentage of the theoretical yield that was actually attained
- the reactant that determines the amount of product formed in a chemical reaction
- the amount of product actually produced by a chemical reaction
Down
- the numerical relationships amount chemical quantities in a balanced chemical equation
- changes in the Earth's climate caused by human emission of gases into the atmosphere
- the maximum amount of product that can be made in a chemical reaction based on the amount of limiting reactant
7 Clues: the amount of product actually produced by a chemical reaction • the reactant that determines the amount of product formed in a chemical reaction • changes in the Earth's climate caused by human emission of gases into the atmosphere • the numerical relationships amount chemical quantities in a balanced chemical equation • ...
"Just for Fun" Chemistry Crossword Puzzle 2020-03-15
Across
- Oxy Acids are composed of __________ attached to a polyatomic ion containing oxygen.
- Chloride The correct name for a compound with the name of NaCl.
- Change A change in which new substances are formed is called a ___________.
- A chemical __________ occurs when two or more molecules interact with each other causing the molecules to change.
- The law of Conservation of mass states that the total mass of the reactants is always equal to the mass of the _______.
- The amount of hydrogen atoms in a water molecule is ______.
- The correct chemical formula for the compound HCO 3- is __________.
- The reaction between an acid and base produces water and an ionic compound is known as.
- A solution with a pH of 3.5 can be named as ______.
Down
- A multivalent compound is a compound in which an element has more than one __________.
- This type of reaction occurs when the product side of an equation consists of oxygen and fuel.
- displacement __________ is when two reactants switch places creating two new compounds.
- Substances written on the right side of an equation.
- An equation with 2 reactants and 1 product is called.
- Change A change in which no new substances are formed is called a _____________.
15 Clues: A solution with a pH of 3.5 can be named as ______. • Substances written on the right side of an equation. • An equation with 2 reactants and 1 product is called. • The amount of hydrogen atoms in a water molecule is ______. • Chloride The correct name for a compound with the name of NaCl. • The correct chemical formula for the compound HCO 3- is __________. • ...
Conservation of Mass 2016-01-13
Across
- Is part of the 8 group in the periodic table.
- Is part of the 12 group in the periodic table.
- Substance that is formed as the result of a chemical reaction.
- He was the first Russian Scientist of natural importance
- Substances initially present in a chemical reaction that are consumed during the reaction to make products.
Down
- He is widely considered in popular literature as the "father of modern chemistry"
- Is part of the 11 group in the periodic table.
- An action in a reverse direction or manner.
- The downward force caused by gravity on an object.
- A measure of how much matter is in an object.
10 Clues: An action in a reverse direction or manner. • Is part of the 8 group in the periodic table. • A measure of how much matter is in an object. • Is part of the 11 group in the periodic table. • Is part of the 12 group in the periodic table. • The downward force caused by gravity on an object. • He was the first Russian Scientist of natural importance • ...
Balancing Equations 2021-09-10
9 Clues: fire • Equal • Bubbling • Dissolves • The result • Used for the reaction • Number of atoms of the element • The equation of a chemical reaction. • Multiple to all the atoms in a formula
Chemical Formulas and Reactions 2023-10-10
Across
- a number written below and to the right of a chemical symbol that shows the number of a specific type of atom present
- the formation of solids from a solution
- matter is neither created nor destroyed; only rearranged
- combined atoms of the same element (e.g. O2)
Down
- the number placed in front of a chemical formula in a chemical equation; represents the number of molecules of that substance
- formula that describes solutions by their chemical symbols
- substance(s) resulting from a chemical reaction
- substances that are combined and changed during a chemical reaction
- a substance made of two or more elements (e.g. H2O)
9 Clues: the formation of solids from a solution • combined atoms of the same element (e.g. O2) • substance(s) resulting from a chemical reaction • a substance made of two or more elements (e.g. H2O) • matter is neither created nor destroyed; only rearranged • formula that describes solutions by their chemical symbols • ...
Chapter 12 Vocabulary Words 2016-01-28
Across
- Yield: the ratio of the actual yield to the theoretical yield for a chemical reaction expressed as a percentage; a measure of the efficiency of a reaction
- that portion of chemistry dealing with numerical relationships in chemical reactions; the calculation of quantities of substances involved in chemical equations
- Yield: the amount of product that forms when a reaction is carried out in the laboratory
Down
- Ratio: a conversion factor derived from the coefficients of a balanced chemical equation interpreted in terms of moles
- Reagent: a reagent present in a quantity that is more than sufficient to react with a limiting reagent; any reactant that remains after the limiting reagent is used up in a chemical reaction
- Yield: the amount of product that could form during a reaction calculated from a balanced chemical equation; it represents the maximum amount of product that could be formed from a given amount of reactant
- Reagent: any reactant that is used up first in a chemical reaction; it determines the amount of product that can be formed in the reaction
7 Clues: Yield: the amount of product that forms when a reaction is carried out in the laboratory • Ratio: a conversion factor derived from the coefficients of a balanced chemical equation interpreted in terms of moles • Reagent: any reactant that is used up first in a chemical reaction; it determines the amount of product that can be formed in the reaction • ...
UT 2024-07-06
Across
- a type of bonding that involves a transfer of electrons from one atom to another
- forces that exist between molecules
- a chemical reaction that involves the loss of a water molecule from the reacting molecules
- covalent Bond- a type of chemical bond where a pair of electrons is unequally shared between two atoms
- covalent Bond- a type of chemical bond where two atoms share a pair of electrons with each other equally
- attractive forces that hold atoms together in compounds
- a type of chemical bond where two atoms share pairs of electrons
Down
- lipids organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents
- a small molecule that can combine with others to form a polymer
- forces that hold atoms together within a molecule
- a chemical reaction where water is used to break down the bonds of certain substances
- bonds the force of attraction between valence electrons and the metal ions
12 Clues: forces that exist between molecules • forces that hold atoms together within a molecule • attractive forces that hold atoms together in compounds • a small molecule that can combine with others to form a polymer • a type of chemical bond where two atoms share pairs of electrons • bonds the force of attraction between valence electrons and the metal ions • ...
Station 4 2024-10-16
Across
- a solid formed by a change
- Reaction- two or more substances combine
- participates in chemical reaction
- Change- occurs when one or more subtance change
Down
- of Conversation of Mass- states the mass of object
- Equation- uses symbols to indicate the amount
- Change- a change of matter without change in checmical properties
- formed in chemical reaction
8 Clues: a solid formed by a change • formed in chemical reaction • participates in chemical reaction • Reaction- two or more substances combine • Equation- uses symbols to indicate the amount • Change- occurs when one or more subtance change • of Conversation of Mass- states the mass of object • Change- a change of matter without change in checmical properties
Stoichiometry 2022-02-10
Across
- Branch of chemistry that deals with the relative quantities of reactants and products in chemical reactions
- a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
- on the left side of a chemical equation
- the mass in grams of one mole of a compound
Down
- on the right side of a chemical equation
- unit in chemistry to measure atoms or molecules
- what you use to show how the reactants and products of a chemical reaction
- a unit of that is equal to 22.4
- using coefficients to ______ an equation
9 Clues: a unit of that is equal to 22.4 • on the left side of a chemical equation • on the right side of a chemical equation • using coefficients to ______ an equation • the mass in grams of one mole of a compound • unit in chemistry to measure atoms or molecules • what you use to show how the reactants and products of a chemical reaction • ...
Unit 2: Extra Credit 2020-10-30
Across
- the day-to-day state of the atmosphere.
- A substance produced during a chemical reaction.
- A number placed in front of a chemical formula that represents the number of molecules.
- An instrument that measures the amount of atmospheric pressure.
- The natural movement of air caused by the uneven heating of the Earth by the Sun.
- A substance that takes part in and undergoes change during a chemical reaction.
Down
- The number that comes after an element in a chemical formula.
- A rising and falling current caused by molecules heating and cooling.
- A large tropical weather system with extremely low air pressure, high wind, and heavy rain.
- The transfer of energy/heat through the air that we can feel.
- A scientific tool used to measure wind speed.
- The amount of water vapor or moisture content in air.
- The transfer of heat energy from one molecule to another up a metal rod.
13 Clues: the day-to-day state of the atmosphere. • A scientific tool used to measure wind speed. • A substance produced during a chemical reaction. • The amount of water vapor or moisture content in air. • The number that comes after an element in a chemical formula. • The transfer of energy/heat through the air that we can feel. • ...
The Earth 2 Key Words 2025-11-27
Across
- The only organisms responsible for removing carbon from the environment.
- A really useful metal that is extracted by displacement.
- The layer of gases surrounding the Earth.
- Around 80% of the atmosphere is made from this gas.
- A chemical reaction that all living things do that takes in oxygen and releases carbon dioxide.
Down
- A chemical reaction that plants do that takes in carbon dioxide and releases oxygen.
- Around 20% of the atmosphere is made from this gas.
- A type of chemical reaction where a more reactive element replaces a less reactive element.
- The ______ cycle shows how this element moves around the environment.
- A type of material that is shiny, durable, malleable and conducts electricity.
10 Clues: The layer of gases surrounding the Earth. • Around 20% of the atmosphere is made from this gas. • Around 80% of the atmosphere is made from this gas. • A really useful metal that is extracted by displacement. • The ______ cycle shows how this element moves around the environment. • The only organisms responsible for removing carbon from the environment. • ...
Chapter 12 Vocabulary Words 2016-01-28
Across
- Yield: the amount of product that could form during a reaction calculated from a balanced chemical equation; it represents the maximum amount of product that could be formed from a given amount of reactant
- Reagent: any reactant that is used up first in a chemical reaction; it determines the amount of product that can be formed in the reaction
- Yield: the ratio of the actual yield to the theoretical yield for a chemical reaction expressed as a percentage; a measure of the efficiency of a reaction
Down
- Ratio: a conversion factor derived from the coefficients of a balanced chemical equation interpreted in terms of moles
- that portion of chemistry dealing with numerical relationships in chemical reactions; the calculation of quantities of substances involved in chemical equations
- Reagent: a reagent present in a quantity that is more than sufficient to react with a limiting reagent; any reactant that remains after the limiting reagent is used up in a chemical reaction
- Yield: the amount of product that forms when a reaction is carried out in the laboratory
7 Clues: Yield: the amount of product that forms when a reaction is carried out in the laboratory • Ratio: a conversion factor derived from the coefficients of a balanced chemical equation interpreted in terms of moles • Reagent: any reactant that is used up first in a chemical reaction; it determines the amount of product that can be formed in the reaction • ...
Reaction Rates 2023-04-19
Across
- type of catalyst important in living organisms
- value for Gibbs free energy when the reaction is nonspontaneous
- increases the rate of a chemical reaction without being consumed in the reaction - it is not a reactant or product
- states that atoms, ions, and molecules must collide in order to react
- value for Gibbs free energy when the reaction is spontaneous
- the minimum amount of energy that reacting particles must have to lead to a reaction
- randomness of all things in the universe
- reactants have lower energy than products
- products have lower energy than reactants
Down
- sum of energy
- change in concentration of a reactant or product per unit of time, generally expressed as mol/(L·s)
- substance that slows down reaction rates or inhibits reactions
- describes reactions where products are favored
- Greek letter delta (Δ) written before a quantity indicates a change in the quantity
- describes reactions where products are NOT favored
- energy that may be converted into work in a system that is at constant temperature & pressure
16 Clues: sum of energy • randomness of all things in the universe • reactants have lower energy than products • products have lower energy than reactants • type of catalyst important in living organisms • describes reactions where products are favored • describes reactions where products are NOT favored • value for Gibbs free energy when the reaction is spontaneous • ...
Chemistry Vocab 2025-09-04
Across
- Able to catch fire easily
- Tending to combine with or dissolve in lipids or fats.
- Detailed information document prepared by the manufacturer or importer of a hazardous chemical
- Chemical change that involves the transfer of electrons or oxygen among atoms
- The study of the properties of matter and how matter changes
- Ameasure of how acidic or basic a solution is
- Able to dissolve other substances
- Achemical reaction that releases energy by light or heat
- Not forming a homogeneous mixture when added together
- Asubstance that tends to reduce the surface tension of a liquid in which it is dissolved.
Down
- Cancer causing
- A solution that has a pH above 7.0 (neutral)
- Liquid mixture that occurs when hydrogen ions are released when combined with water
- Forming a homogeneous mixture when added together
- Any chemical reaction that absorbs heat from its environment
- Having a tendency to mix with, dissolve in, or be wetted by water.
- An organic compound, carboxylic acid with a thiol group
- Capable of catching fire or burning
18 Clues: Cancer causing • Able to catch fire easily • Able to dissolve other substances • Capable of catching fire or burning • A solution that has a pH above 7.0 (neutral) • Ameasure of how acidic or basic a solution is • Forming a homogeneous mixture when added together • Not forming a homogeneous mixture when added together • ...
ciaras crossword 2023-03-10
Across
- a material that can dissolve in a substance
- contains carbon, hydrogen, and oxygen atoms.
- group after producer
- when a solid breaks apart and mixes in a liquid
Down
- a substance that doesnt change
- mushroom, worms
- the substance you start with before a chemical reaction
- 2 substances blended together
- the new substance produced from a chemical reaction
- the powerhouse of the cell
10 Clues: mushroom, worms • group after producer • the powerhouse of the cell • 2 substances blended together • a substance that doesnt change • a material that can dissolve in a substance • contains carbon, hydrogen, and oxygen atoms. • when a solid breaks apart and mixes in a liquid • the new substance produced from a chemical reaction • ...
stuff 2021-04-27
Across
- same number of atoms on each side of the equation
- anything that takes up space
- means yields
- happen before the chemical reaction
- the law that says atoms can neither be created nor destroyed
Down
- happen after the chemical reaction
- something that has matter
- when something is created out of reactants
- tested the conservation of mass law
- make up matter
10 Clues: means yields • make up matter • something that has matter • anything that takes up space • happen after the chemical reaction • tested the conservation of mass law • happen before the chemical reaction • when something is created out of reactants • same number of atoms on each side of the equation • the law that says atoms can neither be created nor destroyed
ACIDS, BASES AND SALTS 2024-09-30
Across
- positively charged ion
- chemical breakdown due to reaction with water
- chemical process to balance acidity and alkalinity
- having a ph greater than 7
- Negatively charged ion
- state of balance in system
Down
- Process of electron gain or loss
- amount of substance ina a given volume
- Ionic compounds formed from the reaction of an acid and base
- Having ph less than 7
10 Clues: Having ph less than 7 • positively charged ion • Negatively charged ion • having a ph greater than 7 • state of balance in system • Process of electron gain or loss • amount of substance ina a given volume • chemical breakdown due to reaction with water • chemical process to balance acidity and alkalinity • Ionic compounds formed from the reaction of an acid and base
Exothermic/Endothermic 2025-02-13
Across
- A substance that takes part in and undergoes change during a chemical reaction?
- hand warmers?
- the temperature?
- the baking soda and vinegar caused a?
Down
- is the energy in an object due to the movement of its particles.
- the Ice pack?
- the room was?
- a Substance produced during a chemical reaction?
- the burning wood gave off?
- the hot tub temperature?
10 Clues: the Ice pack? • the room was? • hand warmers? • the temperature? • the hot tub temperature? • the burning wood gave off? • the baking soda and vinegar caused a? • a Substance produced during a chemical reaction? • is the energy in an object due to the movement of its particles. • A substance that takes part in and undergoes change during a chemical reaction?
Chemical Reactions Review 2022-04-12
Across
- something that can be observed about a substance, such as color, smell, or boiling point
- an ending substance that is made during a chemical reaction
- the town that had the rust in the water
- the tiny pieces that all matter—all the stuff in the world—is made of
- reaction a process in which atoms rearrange to form new substances
Down
- a starting substance that is part of a chemical reaction
- to change the order or position of something
- something that is made of all the same atoms or groups of atoms
- an object, diagram, or computer program that helps us understand something by making it simpler or easier to see
- the relative size of things
10 Clues: the relative size of things • the town that had the rust in the water • to change the order or position of something • a starting substance that is part of a chemical reaction • an ending substance that is made during a chemical reaction • something that is made of all the same atoms or groups of atoms • ...
Chemical Bonding 2024-01-17
Across
- what does two hydrogen and one oxygen molecule make
- A group of atoms held together with chemical bonds.
- Chemical ____ are the links between atoms in a substance that determines its identity
- ________ electrons are on the outer most shell
- When a reaction takes in heat
Down
- Chemical ______ is all the elements in a thing shown
- Bonds that share a Valance electrons in two elements are called __________ bonds
- When a reaction lets off heat
- A chemical ______ is change that happens that change the thing at a molecular level.
- This contains three basic particles-protons, Neutrons, and electrons.
10 Clues: When a reaction lets off heat • When a reaction takes in heat • ________ electrons are on the outer most shell • what does two hydrogen and one oxygen molecule make • A group of atoms held together with chemical bonds. • Chemical ______ is all the elements in a thing shown • This contains three basic particles-protons, Neutrons, and electrons. • ...
Acids and Neutralisation 2016-03-05
Across
- Sodium chloride
- A chemical that removes H+ ions from solution, (the chemical opposite of acids)
- The ending of salts made from sulphuric acid
- HNO3
- A scale that runs from 1-14 and shows how acid or alkaline a chemical is
- The chemical formed during neutralisation
- The most common type of alkalis
- The gas formed when a metal reacts with an acid
- A solid acid at room temperature
- The gas formed when metal carbonates are neutralised
- The ending of salts made from nitric acid
- A chemical that dissolves is described as being...
- Sodium hydroxide
- Acids that fully ionise
Down
- Strong alkalis turn universal indicator...
- The colour of a neutral solution
- HCl
- A chemical that has a pH of 7
- A chemical that releases OH- ions in solution, (a base that dissolves in water)
- H2SO4
- The ending of salts made from hydrochloric acid
- The type of chemical reaction that occurs when acids and bases react
- The word used to describe when acids split up into ions
- A chemical that changes colour depending on the pH of the solution
- Strong acids turn universal indicator...
- Acids release these when they dissolve
- Acids that do not fully ionise
27 Clues: HCl • HNO3 • H2SO4 • Sodium chloride • Sodium hydroxide • Acids that fully ionise • A chemical that has a pH of 7 • Acids that do not fully ionise • The most common type of alkalis • The colour of a neutral solution • A solid acid at room temperature • Acids release these when they dissolve • Strong acids turn universal indicator... • The chemical formed during neutralisation • ...
Crazy Chemistry Christmas Crossword 2025-12-11
Across
- A solid that forms and falls out of a liquid during a chemical reaction.
- a substance reacts with oxygen gas releasing energy in the form of light and heat
- the type of replacement where one element replaces another in a single compound
- a series that is a list of metals arranged from most reactive to least reactive.
- one reactant breaks down into two or more products
Down
- The starting substances that are changed during a chemical reaction.
- The new substances formed after a chemical reaction.
- the type of replacement where two ionic compounds exchange ions
- two or more reactants combine to form a single product
- How much of a substance can dissolve in a given amount of liquid.
10 Clues: one reactant breaks down into two or more products • The new substances formed after a chemical reaction. • two or more reactants combine to form a single product • the type of replacement where two ionic compounds exchange ions • How much of a substance can dissolve in a given amount of liquid. • ...
Chap 11 Chemical Change 2023-02-27
Across
- burning of substance with oxygen
- reacting with oxygen
- a gas that caused limewater to form a white solid upon bubbling of the gas.
- substance that reacts with one another before a chemical change occur
Down
- substances that are formed after a chemical change occurs.
- a gas that caused a lighted splint to extinguish with a 'pop' sound.
- reaction of acids and alkali to produce salt and water.
- Change cannot be _________ for a chemical change.
- mass and number of atoms are ________ during a chemical reaction.
- a product that is formed in all reactions of acids.
10 Clues: reacting with oxygen • burning of substance with oxygen • Change cannot be _________ for a chemical change. • a product that is formed in all reactions of acids. • reaction of acids and alkali to produce salt and water. • substances that are formed after a chemical change occurs. • mass and number of atoms are ________ during a chemical reaction. • ...
Chemical Bonding 2024-01-17
Across
- When a reaction lets off heat
- ________ electrons are on the outer most shell
- what does two hydrogen and one oxygen molecule make
- Bonds that share a Valance electrons in two elements are called __________ bonds
- This contains three basic particles-protons, Neutrons, and electrons.
- A group of atoms held together with chemical bonds.
Down
- Chemical ______ is all the elements in a thing shown
- When a reaction takes in heat
- Chemical ____ are the links between atoms in a substance that determines its identity
- A chemical ______ is change that happens that change the thing at a molecular level.
10 Clues: When a reaction lets off heat • When a reaction takes in heat • ________ electrons are on the outer most shell • what does two hydrogen and one oxygen molecule make • A group of atoms held together with chemical bonds. • Chemical ______ is all the elements in a thing shown • This contains three basic particles-protons, Neutrons, and electrons. • ...
science words 2024-04-09
Across
- solid formed by mixing somthing
- a chemical that gives off hydrogen
- a substanc that can nutraluze the adic by reacting with hydonice ions
- change a type of change where the physical property of the matter chnages
- a variabe that used to regulate the flow of control
Down
- a content term related to the propertys of a product
- a variable not to be dependent on nything
- a substance that incresses the rate of a chemical without undergoing any perimint chemical change
- mesured how acid and alkaline a substance
- reaction a process are formed due to chemical reaction
10 Clues: solid formed by mixing somthing • a chemical that gives off hydrogen • a variable not to be dependent on nything • mesured how acid and alkaline a substance • a variabe that used to regulate the flow of control • a content term related to the propertys of a product • reaction a process are formed due to chemical reaction • ...
